ninjette.org

Go Back   ninjette.org > General > General Motorcycling Discussion

Reply
 
Thread Tools
Old August 15th, 2012, 07:57 AM   #41
rmorse
ninjette.org guru
 
Name: Bobby
Location: Silver Spring, MD
Join Date: Apr 2012

Motorcycle(s): 2008 Kawi Ninja 250R, 2013 Honda CRF450R, 2008 Honda CRF250R, 2001 Honda XR400

Posts: 301
Quote:
Originally Posted by dirty nasty View Post
Nothing? Except left lane blockers/right lane passers. Everything you guys are listing are minor speed bump obstacles that are fun. Try riding MX sometime where you need to fly through whoops sections that are taller than you are at 40+ MPH. Now THAT'S some real fun.
Get a real MX bike.
rmorse is offline   Reply With Quote




Old August 15th, 2012, 08:06 AM   #42
Coolbpf
Limp Noodle
 
Coolbpf's Avatar
 
Name: Tyler
Location: Missouri
Join Date: Jun 2012

Motorcycle(s): 2006 Ninja 250, Fastest Red money can buy

Posts: 212
Quote:
Originally Posted by R1Chronicles View Post
State Troopers ...
Oh god.
Coolbpf is offline   Reply With Quote


Old August 15th, 2012, 08:11 AM   #43
lgk
ninjette.org certified postwhore
 
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011

Motorcycle(s): 2012 EX250, 2014 EX300

Posts: A lot.
Quote:
Originally Posted by adouglas View Post
Check this out. Mythbusters showed what will happen to you if a retread hits you at highway speeed. Gruesome (in a cool way, don't worry, no gore) stuff at about 4:30

http://www.youtube.com/watch?v=Vqw4ZooBzLw
wonder how much of a factor distance and aerodynamic drag are with such a big piece of rubber.

maybe 100ft further and you wont get hit as bad
__________________________________________________
Ethioknight Memorial Fund- Sticker sale
http://www.ninjette.org/forums/showthread.php?t=111700
lgk is offline   Reply With Quote


Old August 15th, 2012, 08:12 AM   #44
azimmer11
ninjette.org sage
 
azimmer11's Avatar
 
Name: Alex
Location: michigan
Join Date: Jul 2011

Motorcycle(s): 2008 Ninja 250r

Posts: 784
Quote:
Originally Posted by Coolbpf View Post
Drafting. I get behind a tractor trailer or a horse trailer and boy, that pocket feels so nice (saves on gas too) but I just know that at any minute he's gonna slam on his breaks and final fantasy is going to become reality lol. But I always leave an escape route for myself, or get the heck out of there if there isn't one.
azimmer11 is offline   Reply With Quote


Old August 15th, 2012, 10:10 AM   #45
adouglas
Cat herder
 
adouglas's Avatar
 
Name: Gort
Location: A secret lair which, being secret, has an undisclosed location
Join Date: May 2009

Motorcycle(s): Aprilia RS660

Posts: A lot.
Blog Entries: 6
MOTM - Jul '18, Nov '16, Aug '14, May '13
Quote:
Originally Posted by lgk View Post
wonder how much of a factor distance and aerodynamic drag are with such a big piece of rubber.

maybe 100ft further and you wont get hit as bad
Doesn't matter. If you're traveling 70 and the rubber gets kicked straight up (i.e. it's not moving towards you) you'll still hit it at 70 mph.
adouglas is offline   Reply With Quote


Old August 15th, 2012, 10:12 AM   #46
lgk
ninjette.org certified postwhore
 
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011

Motorcycle(s): 2012 EX250, 2014 EX300

Posts: A lot.
Quote:
Originally Posted by adouglas View Post
Doesn't matter. If you're traveling 70 and the rubber gets kicked straight up (i.e. it's not moving towards you) you'll still hit it at 70 mph.
i was hoping it would fall lower and hit part of the bike.

i'll just stay away from them...
__________________________________________________
Ethioknight Memorial Fund- Sticker sale
http://www.ninjette.org/forums/showthread.php?t=111700
lgk is offline   Reply With Quote


Old August 15th, 2012, 10:18 AM   #47
adouglas
Cat herder
 
adouglas's Avatar
 
Name: Gort
Location: A secret lair which, being secret, has an undisclosed location
Join Date: May 2009

Motorcycle(s): Aprilia RS660

Posts: A lot.
Blog Entries: 6
MOTM - Jul '18, Nov '16, Aug '14, May '13
Quote:
Originally Posted by Coolbpf View Post
Drafting. I get behind a tractor trailer or a horse trailer and boy, that pocket feels so nice (saves on gas too) but I just know that at any minute he's gonna slam on his breaks and final fantasy is going to become reality lol. But I always leave an escape route for myself, or get the heck out of there if there isn't one.
Something I've noticed is that people always seem to talk about following distance as if the vehicle in front will instantly cease all forward motion if it hits the brakes.

Last I checked the laws of physics were still on the books.

The truck will take longer to slow down than you do. What matters is your reaction time... do you have enough time to hit the brakes before plastering yourself all over his tailgate?

Realistically while just motoring along, the cycle of see-understand-decide-act is IMHO at least two seconds, so that's the gap I tend to leave. If you're focused on the hazard and spring-loaded to act (as you would be if drafting) you can probably react within a second or a second and half.

I have drafted in my car within one car length for extended periods, but ONLY by keeping laser-like focus on the guy's brake lights and keeping my foot over the brake pedal. It was stupid.
adouglas is offline   Reply With Quote


Old August 15th, 2012, 10:32 AM   #48
lgk
ninjette.org certified postwhore
 
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011

Motorcycle(s): 2012 EX250, 2014 EX300

Posts: A lot.
Quote:
Originally Posted by adouglas View Post
I have drafted in my car within one car length for extended periods, but ONLY by keeping laser-like focus on the guy's brake lights and keeping my foot over the brake pedal. It was stupid.
i took a 6 hour ride into NC last week.
following a tractor trailer wasn't all that great... even when tucked the wind would still push me around.

ended up passing them quickly and was much more comfortable afterwards.
__________________________________________________
Ethioknight Memorial Fund- Sticker sale
http://www.ninjette.org/forums/showthread.php?t=111700
lgk is offline   Reply With Quote


Old August 15th, 2012, 11:19 AM   #49
bdavison
Wartown, USA
 
bdavison's Avatar
 
Name: Bryan
Location: Warner Robins, GA
Join Date: Nov 2009

Motorcycle(s): 2009 Ninja 250R SE, 2007 Ninja 650R, and assorted other bikes

Posts: A lot.
Drafting a semi truck on a motorcycle has to be the stupidest thing I've ever heard a motorcyclist do. First, anyone that has ever been behind a semi on a 250R will know that it is smoother if you were just all by yourself. The buffeting off the back of a semi is ridiculous. In order to get rid of the buffeting, you'd have to get so close, that I don't care what your reaction time is...if he so much as lightly brushes his brake pedal, you are going to taste trailer.

Dont be a moron.
bdavison is offline   Reply With Quote


Old August 15th, 2012, 11:38 AM   #50
lgk
ninjette.org certified postwhore
 
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011

Motorcycle(s): 2012 EX250, 2014 EX300

Posts: A lot.
honestly i don't even think you could get close enough to do it, the wind was intense from 40ft back.

my handlebars were shaking badly, from the bike trying to correct itself.
like i said you are much better off being alone.

i passed them and felt so much better.
__________________________________________________
Ethioknight Memorial Fund- Sticker sale
http://www.ninjette.org/forums/showthread.php?t=111700
lgk is offline   Reply With Quote


Old August 15th, 2012, 12:13 PM   #51
Coolbpf
Limp Noodle
 
Coolbpf's Avatar
 
Name: Tyler
Location: Missouri
Join Date: Jun 2012

Motorcycle(s): 2006 Ninja 250, Fastest Red money can buy

Posts: 212
Quote:
Originally Posted by bdavison View Post
Drafting a semi truck on a motorcycle has to be the stupidest thing I've ever heard a motorcyclist do. First, anyone that has ever been behind a semi on a 250R will know that it is smoother if you were just all by yourself. The buffeting off the back of a semi is ridiculous. In order to get rid of the buffeting, you'd have to get so close, that I don't care what your reaction time is...if he so much as lightly brushes his brake pedal, you are going to taste trailer.

Dont be a moron.
You obviously have no idea what you're talking about and just want to rant because you're angry.

But anyways... I had no wind buffeting. You can't just ride up there like normal and expect to draft. It's all about tuck position... YEAH, TUCK. You have to tuck up and make yourself as streamline as possible... It works, trust me, I did it like 2 hours ago. lol
Coolbpf is offline   Reply With Quote


Old August 15th, 2012, 01:42 PM   #52
Baddog
ninjette.org member
 
Baddog's Avatar
 
Name: Kevin
Location: NE PA
Join Date: Jun 2012

Motorcycle(s): 04 ZX 6R-636, 06 ZX 10

Posts: 203
Big rattle snakes, deer and bears in PA. That makes me cringe when riding. That and the state trooper sitting just over the crest of one of my favorite mountain hills. lol
Baddog is offline   Reply With Quote


Old August 15th, 2012, 06:10 PM   #53
EvilPooMonkey
ninjette.org guru
 
EvilPooMonkey's Avatar
 
Name: James
Location: Winston Salem N.C.
Join Date: May 2012

Motorcycle(s): Ninja 250 :)

Posts: 253
other people. honestly if it were just me and the road i'd never feel scared. i feel that the constants are easy to handle, its the variables that make me clinch my poop chute!
EvilPooMonkey is offline   Reply With Quote


Old August 15th, 2012, 06:34 PM   #54
Goom
ninjette.org guru
 
Goom's Avatar
 
Name: Eric
Location: Concord, NC
Join Date: Apr 2012

Motorcycle(s): 1976 CB550 Cafe, 2011 Ninja 250, 1999 Honda CR125

Posts: 264
Quote:
Originally Posted by Coolbpf View Post
You obviously have no idea what you're talking about and just want to rant because you're angry.

But anyways... I had no wind buffeting. You can't just ride up there like normal and expect to draft. It's all about tuck position... YEAH, TUCK. You have to tuck up and make yourself as streamline as possible... It works, trust me, I did it like 2 hours ago. lol
^ This guy, for starters.

If you are riding close enough to draft the semi, you are riding too close to see anything in front of you. And if it is the tuck that makes the difference, try tucking without being in the "dirty air" behind the semi. I'm sure I'm just another idiot, so don't worry about what I say.

Also, blown out tires (gators, if you will) suck. I'll never forget the time I hit one while I was merging right before a construction zone in front of a Goldwing with an older couple on it. Luckily, it missed them, but I just about had a heart attack. I felt terrible.
Goom is offline   Reply With Quote


Old August 15th, 2012, 06:59 PM   #55
highpsiguy
ninjette.org guru
 
highpsiguy's Avatar
 
Name: Kevin
Location: Athens
Join Date: Aug 2010

Motorcycle(s): 1981 Honda Cx500 Custom, 2002 Ninja 250

Posts: 289
Blog Entries: 1
Dogs, deer and flying cigarette butts, spitting/dipping cars/trucks
__________________________________________________
"Rudeness is a weak persons attempt at strength."
highpsiguy is offline   Reply With Quote


Old August 15th, 2012, 08:13 PM   #56
EvilPooMonkey
ninjette.org guru
 
EvilPooMonkey's Avatar
 
Name: James
Location: Winston Salem N.C.
Join Date: May 2012

Motorcycle(s): Ninja 250 :)

Posts: 253
Quote:
Originally Posted by Goom View Post
^ This guy, for starters.

If you are riding close enough to draft the semi, you are riding too close to see anything in front of you. And if it is the tuck that makes the difference, try tucking without being in the "dirty air" behind the semi. I'm sure I'm just another idiot, so don't worry about what I say.

Also, blown out tires (gators, if you will) suck. I'll never forget the time I hit one while I was merging right before a construction zone in front of a Goldwing with an older couple on it. Luckily, it missed them, but I just about had a heart attack. I felt terrible.
he no ideeeot. he smart mahn. evin myffbutters say draft truhk two klose. bikey go SMASH
EvilPooMonkey is offline   Reply With Quote


Old August 15th, 2012, 08:32 PM   #57
Alex
ninjette.org dude
 
Alex's Avatar
 
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008

Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE

Posts: Too much.
Blog Entries: 7
Quote:
Originally Posted by Coolbpf View Post
Drafting. I get behind a tractor trailer or a horse trailer and boy, that pocket feels so nice (saves on gas too) but I just know that at any minute he's gonna slam on his breaks and final fantasy is going to become reality lol. But I always leave an escape route for myself, or get the heck out of there if there isn't one.
How close are you actually drafting? Whether truck or car, if you can't see far enough in front of your front wheel to avoid the proverbial brick (or ladder) in the road, at some point in your riding career you will almost certainly hit debris in the road that will endanger your life. It's not if, it's when.

Quote:
Originally Posted by adouglas View Post
Something I've noticed is that people always seem to talk about following distance as if the vehicle in front will instantly cease all forward motion if it hits the brakes.

Last I checked the laws of physics were still on the books.

The truck will take longer to slow down than you do. What matters is your reaction time... do you have enough time to hit the brakes before plastering yourself all over his tailgate?
The problem is that all of the laws of physics aren't accounted for. The brakes on the vehicle immediately in front of you aren't the only items that can slow that vehicle down. If that car or truck hits the car in front of it, suddenly the vehicle in back slows down that much faster. Add another vehicle in the mix, and the last car slows down even faster than that. In a multi-car pileup, the last car stops almost immediately.

Sure, in an ideal situation one can outbrake the vehicle directly in front, assuming perfect reaction time and no additional factors. Those factors are the ones that get us every time, though.
__________________________________________________
Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org

ninjette.org Terms of Service

Shopping for motorcycle parts or equipment? Come here first.

The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)
Alex is offline   Reply With Quote


Old August 16th, 2012, 03:13 AM   #58
dirty nasty
ninjette.org sage
 
Name: Karl
Location: MA
Join Date: Jun 2012

Motorcycle(s): 2000 Kwak Ninja 250 and 1998 Yamaha YZ400F

Posts: 534
Quote:
Originally Posted by rmorse View Post
Get a real MX bike.
Says the kid who rides the pig that eats valves. Get a bike you can ride rather than work on.
dirty nasty is offline   Reply With Quote


Old August 16th, 2012, 07:29 AM   #59
rmorse
ninjette.org guru
 
Name: Bobby
Location: Silver Spring, MD
Join Date: Apr 2012

Motorcycle(s): 2008 Kawi Ninja 250R, 2013 Honda CRF450R, 2008 Honda CRF250R, 2001 Honda XR400

Posts: 301
Quote:
Originally Posted by dirty nasty View Post
Says the kid who rides the pig that eats valves. Get a bike you can ride rather than work on.
That's not even funny.
rmorse is offline   Reply With Quote


Old August 16th, 2012, 01:54 PM   #60
bdavison
Wartown, USA
 
bdavison's Avatar
 
Name: Bryan
Location: Warner Robins, GA
Join Date: Nov 2009

Motorcycle(s): 2009 Ninja 250R SE, 2007 Ninja 650R, and assorted other bikes

Posts: A lot.
LOL, yes, that was funny...

What is it with MX motors turning valves into pretzels. You are'nt the only one with that problem.
bdavison is offline   Reply With Quote


Old August 16th, 2012, 01:59 PM   #61
xMoises831
ninjette.org guru
 
xMoises831's Avatar
 
Name: Moises
Location: watsonville
Join Date: Apr 2012

Motorcycle(s): None yet

Posts: 364
Blog Entries: 1
Quote:
Originally Posted by Jiggles View Post
How about when the car in front of you is smoking so much ganj that you get high off it against your will. Weed just raped your brain and theres nothing you can do about it.
Have you been on highway 1 yet her by watsonville? they were re paving the rode but its so mest up theres this huge bump to get onto the other lane. I hope they fix that before i start riding ! Ill try to find a pic
xMoises831 is offline   Reply With Quote


Old August 16th, 2012, 03:29 PM   #62
alex.s
wat
 
alex.s's Avatar
 
Name: wat
Location: tustin/long beach
Join Date: Sep 2009

Motorcycle(s): wat

Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
other bikers.
__________________________________________________
alex.s is offline   Reply With Quote


Old August 16th, 2012, 05:49 PM   #63
erbarry88
ninjette.org member
 
Name: Eddie
Location: SoCal IE
Join Date: Aug 2012

Motorcycle(s): 2011 Ninja 250R, 2007 GSX-R 600

Posts: 123
Quote:
Originally Posted by alex.s View Post
other bikers.
Please explain.
erbarry88 is offline   Reply With Quote


Old August 16th, 2012, 06:09 PM   #64
Racer x
ninjette.org certified postwhore
 
Racer x's Avatar
 
Name: Eric
Location: Iowa City
Join Date: May 2009

Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X

Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
I got one today. Some cool dude on a Harly chopper was riding down the road. Weaving through traffic. With ape hangers two feet above the triple tree. And he had both feet gliding along the road . Like sixty mph rubbing his feet on the highway. One bump would spin his foot around backelwards.
Racer x is offline   Reply With Quote


Old August 16th, 2012, 06:14 PM   #65
lgk
ninjette.org certified postwhore
 
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011

Motorcycle(s): 2012 EX250, 2014 EX300

Posts: A lot.
Quote:
Originally Posted by Racer x View Post
Like sixty mph rubbing his feet on the highway. One bump would spin his foot around backelwards.
why
__________________________________________________
Ethioknight Memorial Fund- Sticker sale
http://www.ninjette.org/forums/showthread.php?t=111700
lgk is offline   Reply With Quote


Old August 16th, 2012, 06:22 PM   #66
erbarry88
ninjette.org member
 
Name: Eddie
Location: SoCal IE
Join Date: Aug 2012

Motorcycle(s): 2011 Ninja 250R, 2007 GSX-R 600

Posts: 123
Quote:
Originally Posted by Racer x View Post
I got one today. Some cool dude on a Harly chopper was riding down the road. Weaving through traffic. With ape hangers two feet above the triple tree. And he had both feet gliding along the road . Like sixty mph rubbing his feet on the highway. One bump would spin his foot around backelwards.
That dont sound to smart. So far every other biker I bump into will tag along til his exit/turn and I dont do more then 5mph of the posted limit even though the cagers are doing 15+ . Had 4 Hells Angels tag along one day til they exited and they waved goodbye
erbarry88 is offline   Reply With Quote


Old August 16th, 2012, 07:12 PM   #67
ai4px
ninjette.org sage
 
ai4px's Avatar
 
Name: Wes
Location: Sumter SC
Join Date: Apr 2012

Motorcycle(s): 650r 2009 Vulcan 800 2005

Posts: 557
Quote:
Originally Posted by bdavison View Post
Drafting a semi truck on a motorcycle has to be the stupidest thing I've ever heard a motorcyclist do. First, anyone that has ever been behind a semi on a 250R will know that it is smoother if you were just all by yourself. The buffeting off the back of a semi is ridiculous. In order to get rid of the buffeting, you'd have to get so close, that I don't care what your reaction time is...if he so much as lightly brushes his brake pedal, you are going to taste trailer.

Dont be a moron.

Whole heartedly agree. My dad was a trucker. When I was in college, I drafted him one night all the way to Atlanta from Charleston SC. We were talking on the radio with each other... he could tell me if we were to slow down, no problem ,right? He blew a tire on the tractor. I heard it thru the radio first, then I heard it thru the windshield of my car (milliseconds difference). Then 1/2 a second later a lot of orange sparks and smoke, then POW the gatorback hit the front of my car. If I had been on a bike, I guarantee I'd be dead. There is NO WAY on earth I could have taken the blow my car did and stayed up. No friggin way. The tire gave no warning at all.. but I have seen some that do. You can't count on a tire and the risk is just too high. Do what you need to do to get away from trucks... it if means speeding up 10mph to get from beside them, do it.

Don't be a moron.
__________________________________________________
It's all about the curves. If you ride, you understand. If you have a stick skinny g/f and ride, you're 1/2 way there.
ai4px is offline   Reply With Quote


Old August 16th, 2012, 07:18 PM   #68
Malicious Logic
hates stupid people
 
Malicious Logic's Avatar
 
Name: Mark
Location: Oklahoma City
Join Date: Aug 2011

Motorcycle(s): 2005 ZX6R

Posts: 860
Definitely cracks in the road, as mentioned before. Around here, a lot of the highways large cracks in the middle of the road or even worse, gaps in between the concrete slabs that make up lanes. This terrifies me and I usually end up getting trapped in one lane for a few miles because I dare not cross over the gap and risk my tire falling in.
__________________________________________________
My vlogging channel: Ma1iciousLogic
Malicious Logic is offline   Reply With Quote


Old August 16th, 2012, 08:18 PM   #69
Motofool
Daily Ninjette rider
 
Motofool's Avatar
 
Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
Cars or trucks loosing control close or in front of me (not that they had much control before loosing it).

I have had some interesting moments when those have hydroplaned in the rain and turned perpendicular to the direction of traffic.
__________________________________________________
Motofool
.................................Never ride faster than your guardian angel can fly
"Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí
Motofool is offline   Reply With Quote


Old August 17th, 2012, 09:40 AM   #70
alex.s
wat
 
alex.s's Avatar
 
Name: wat
Location: tustin/long beach
Join Date: Sep 2009

Motorcycle(s): wat

Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
Quote:
Originally Posted by erbarry88 View Post
Please explain.
cars, however stupid, are predictable. they are large and slow and are obvious when they are going to do something. trucks even more so. animals are never predictable so you can count on them to be that way.

squids on the other hand. squids dont know what they are doing. they are completely unpredictable. they float around a single car lane as if they dont know it divides into 3 lanes for motorcycles. they randomly change speed because they have a new bike and they just learned when you twist the throttle back all the way, the front wheel goes in the air. they dont know how to turn. they dont know how to brake. they basically just throw their bike at you. riding near new riders is like being around a drunk driver.


and yeah, ive had to avoid bikes thrown at me by squids on the highway before. they usually rear end someone then slide their bike at me... its like they aim for me every damn time.
__________________________________________________
alex.s is offline   Reply With Quote


Old August 17th, 2012, 10:35 AM   #71
Motofool
Daily Ninjette rider
 
Motofool's Avatar
 
Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
The Floridian squids also love passing you at 2" and at 50 mph above your speed,.........and without any previous warning.

It seems that they try to state something like "I don't need wearing all that crazy protection that you wear even to go much faster and unpredictably".

I don't have a problem with a rider being more macho than me; I do have a problem with going down by an idiot on two wheels.
__________________________________________________
Motofool
.................................Never ride faster than your guardian angel can fly
"Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí
Motofool is offline   Reply With Quote


Old August 17th, 2012, 02:10 PM   #72
jman511115
ninjette.org member
 
Name: John
Location: Buffalo NY
Join Date: Sep 2009

Motorcycle(s): Ninja

Posts: 122
Had a soccer ball roll in front of me while surrounded by traffic the other day... Managed to get around it okay.
jman511115 is offline   Reply With Quote


Old August 17th, 2012, 02:33 PM   #73
dirty nasty
ninjette.org sage
 
Name: Karl
Location: MA
Join Date: Jun 2012

Motorcycle(s): 2000 Kwak Ninja 250 and 1998 Yamaha YZ400F

Posts: 534
Quote:
Originally Posted by bdavison View Post
LOL, yes, that was funny...

What is it with MX motors turning valves into pretzels. You are'nt the only one with that problem.
It's because everyone except for Yamaha for a long time was using a crap ass design. Along with the belief that 4 strokes are "maintenance free", which is crap, you have to maintain them as much, if not more than a 2 stroke. I ride the 1998 YZ400F. The bike that put 4-stroke MX on the map. Mine has been around since brand new and not once has it needed a valve adjustment. I check them once a season. They're still set the same as when it rolled off the show room floor 14 years ago. The YZ400F engine is bullet proof. If this bike wasn't so trouble free I would NEVER ride a 4 stroke. It's just too expensive otherwise.
dirty nasty is offline   Reply With Quote


Old August 17th, 2012, 03:08 PM   #74
rmorse
ninjette.org guru
 
Name: Bobby
Location: Silver Spring, MD
Join Date: Apr 2012

Motorcycle(s): 2008 Kawi Ninja 250R, 2013 Honda CRF450R, 2008 Honda CRF250R, 2001 Honda XR400

Posts: 301
Quote:
Originally Posted by bdavison View Post
LOL, yes, that was funny...

What is it with MX motors turning valves into pretzels. You are'nt the only one with that problem.
Lol, yea. I think it's because they are trying to squeeze so much hp out of these engines that there is little to no room for movement. Plus, mx bikes have always required being rebuilt after every couple races.

That being said, the older CRF's eat way more valves than normal. They fixed it, or at least made it much much better in 06 and up. Unfortunately, I have an 05 lol.
rmorse is offline   Reply With Quote


Old August 17th, 2012, 04:16 PM   #75
Bassman
ninjette.org guru
 
Bassman's Avatar
 
Name: Marc
Location: Castaic, CA
Join Date: Sep 2011

Motorcycle(s): 1986 Goldwing, 1996 CR500, 2011 Ninja 250, 2009 Harley Heritage Softail, 1941 Suzuki Gerbil 250

Posts: 427
1) Chunks of semi retreads flying at my head.
2) Bags of flour dropping off the flat bed semi in front of me (man that freaked me out).
3) Semi's full of dirt and a loosely fitting cover spraying me with it's cargo.
4) Work truck ladders tumbling down the highway in front of me.
__________________________________________________
I know there's a 7th gear here somewhere...
Changing to 15T/41T, now I'll get that 7th gear, lol.
Bassman is offline   Reply With Quote


Old August 17th, 2012, 05:42 PM   #76
bdavison
Wartown, USA
 
bdavison's Avatar
 
Name: Bryan
Location: Warner Robins, GA
Join Date: Nov 2009

Motorcycle(s): 2009 Ninja 250R SE, 2007 Ninja 650R, and assorted other bikes

Posts: A lot.
Quote:
Originally Posted by dirty nasty View Post
It's because everyone except for Yamaha for a long time was using a crap ass design. Along with the belief that 4 strokes are "maintenance free", which is crap, you have to maintain them as much, if not more than a 2 stroke. I ride the 1998 YZ400F. The bike that put 4-stroke MX on the map. Mine has been around since brand new and not once has it needed a valve adjustment. I check them once a season. They're still set the same as when it rolled off the show room floor 14 years ago. The YZ400F engine is bullet proof. If this bike wasn't so trouble free I would NEVER ride a 4 stroke. It's just too expensive otherwise.
Thing that gets me is they should be able to make a non-interference head for these things that prevents the valves from turning into slinky toys.

I really miss the 2 strokes sometimes. Not only in dirtbikes, but street bikes as well. The Aprilia RS125 was such a beautiful bike. With the 2 strokers, really the only problems we ever had was the reeds and maybe a burnt piston every once in a while.
bdavison is offline   Reply With Quote


Old August 17th, 2012, 05:51 PM   #77
areifel
ninjette.org member
 
areifel's Avatar
 
Name: Drew
Location: Florida
Join Date: Nov 2010

Motorcycle(s): 2009 Ninja 250R

Posts: 194
Myself.
areifel is offline   Reply With Quote


Old August 18th, 2012, 06:47 AM   #78
dirty nasty
ninjette.org sage
 
Name: Karl
Location: MA
Join Date: Jun 2012

Motorcycle(s): 2000 Kwak Ninja 250 and 1998 Yamaha YZ400F

Posts: 534
Quote:
Originally Posted by rmorse View Post
Lol, yea. I think it's because they are trying to squeeze so much hp out of these engines that there is little to no room for movement. Plus, mx bikes have always required being rebuilt after every couple races.

That being said, the older CRF's eat way more valves than normal. They fixed it, or at least made it much much better in 06 and up. Unfortunately, I have an 05 lol.
The problem with the CRFs is something to do with the head studs and them not being strong enough and actually stretching as time goes on. My YZF has never needed a rebuild. Like I said, it has never needed a valve adjustment since it rolled off the show room floor. If it's a 2-stroke, yes, it will eventually need a rebuild. For your average racer on a 4-stroke I say keep riding it, but checking on scheduled maintenance until something because obviously wrong. We're not Justin Barcia, we won't be trashing on these engines like the best of 'em.

Quote:
Originally Posted by bdavison View Post
Thing that gets me is they should be able to make a non-interference head for these things that prevents the valves from turning into slinky toys.

I really miss the 2 strokes sometimes. Not only in dirtbikes, but street bikes as well. The Aprilia RS125 was such a beautiful bike. With the 2 strokers, really the only problems we ever had was the reeds and maybe a burnt piston every once in a while.
The problem is stupid owners. When the 4 strokes hit the market they were hailed as "maintenance free". They were not maintenance free, but also required a good deal of patience and understanding to work on properly. Your average buyer was a brainless kid (just for the same reasons squids buy super sports and trash them for a while) who did no preventative maintenance to the machine. That's why you see so many blown up. But especially older Honda CRFs. They were just problematic. Many other manufacturers had bad years too. I remember the '06 YZ250F had a recall for broken valves.
dirty nasty is offline   Reply With Quote


Old August 20th, 2012, 10:21 AM   #79
rmorse
ninjette.org guru
 
Name: Bobby
Location: Silver Spring, MD
Join Date: Apr 2012

Motorcycle(s): 2008 Kawi Ninja 250R, 2013 Honda CRF450R, 2008 Honda CRF250R, 2001 Honda XR400

Posts: 301
Quote:
Originally Posted by dirty nasty View Post
The problem is stupid owners. When the 4 strokes hit the market they were hailed as "maintenance free". They were not maintenance free, but also required a good deal of patience and understanding to work on properly. Your average buyer was a brainless kid (just for the same reasons squids buy super sports and trash them for a while) who did no preventative maintenance to the machine. That's why you see so many blown up. But especially older Honda CRFs. They were just problematic. Many other manufacturers had bad years too. I remember the '06 YZ250F had a recall for broken valves.
Yea. The big thing was there were older 4-strokes that were arguably "maintenance free." The XR's are bulletproof. And then people just assumed that a full-blown race bike would be just as reliable as a trail bike.
rmorse is offline   Reply With Quote


Old August 20th, 2012, 10:23 AM   #80
Kevin2109
KThanksBye
 
Kevin2109's Avatar
 
Name: Kevin
Location: Orange County
Join Date: Mar 2011

Motorcycle(s): 2006 zx636r

Posts: A lot.
The tire marks on the road that go directly into the side walls
__________________________________________________
----> My Youtube! <----
Unregistered, watch my youtube page!
Kevin2109 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
[kropotkin thinks...] - Things To Do At Indy - There's A Lot Of Things To Do At Indy, Ninjette Newsbot Motorcycling News 0 August 14th, 2013 05:50 PM
[superbikeplanet.com] - Things that Make You Go Whoa: Stoner Shows Battle Scars on Tw Ninjette Newsbot Motorcycling News 0 August 23rd, 2012 02:20 PM
[topix.net] - Husqvarna Motorcycles Make It Easy To Make It Yours Ninjette Newsbot Motorcycling News 0 March 21st, 2011 10:30 AM
[superbikeplanet.com] - Things That Make You Go Hmmmm. AMA Tax Form 990 Available On- Ninjette Newsbot Motorcycling News 0 November 23rd, 2009 10:50 AM
Things that make you miss a track day... Apex General Motorcycling Discussion 12 July 28th, 2009 10:04 AM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 05:12 AM.


Website uptime monitoring Host-tracker.com
Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are © Copyright 2022 ninjette.org, All rights reserved.