How much can these ninjas take? - Page 2

Suave · July 2nd, 2011, 07:38 PM

Quote:

Originally Posted by almost40

What the hell right?? Another 30 bucks and your done.

To the other point going in this thread.

Want to NOT be associated with the squid population in your area.
GEAR UP. Squids dont wear any.
Ask a cop. They can spot a squid coming down the road for that sole reason.

Look at it this way
When you see a group of Harleys going down the road and they all have bandanas and are wearing the dirty club jacket. What do you think??? BIKERS---the kind you dont mess with.
Same bikes, same group, all wearing expensive gear and helmets What do you think??? Motorcyclist-------- without a death wish.
Same principal in sportbikes.

$30? dang, that would pay for itself in gas in a week if it drops rpms so drastically... I was doing 75mph today on the autobaun (Pelladega Parkway; also I was behind the slow guy!) i looked down and if I remember correctly I was doing about 10k on the tach. i end up doing a lot of highway riding as people are going to knoxville to hang in the summer. But that highly-valued gas mileage disappears when you spend 20 mintues there and back revving that high.

On the note of squids: I saw a guy on an r6 today- shorts, no shirt, flip flops. he saw me and wanted to show-off, I suppose, and did a wheelie right in front a cop lol the street lit up blue and I couldn't stop laughing

greatwhiteninja · July 2nd, 2011, 08:33 PM

Quote:

Originally Posted by rockNroll

I wish mine would do 115mph

x2 ..lol~!

Suave · July 3rd, 2011, 12:01 PM

Quote:

Originally Posted by greatwhiteninja

x2 ..lol~!

you should, that was at the revv limiter in 6th gear, on a slight downhill slope. but I happen to know that on flat ground it does 90~95 mph; I tested that on an unused runway near my buddy's house, not a public road btw

Jesse8931 · July 3rd, 2011, 12:16 PM

No way if the bike is stock could you hit 115mph even downhill. The math says otherwise

Alex · July 3rd, 2011, 12:35 PM

It will say that on the speedometer, but the gauge is often quite optimistic. It will hit the rev limiter around 105 mph actual in top gear, stock gearing/tire sizes.

http://www.ninjette.org/wiki/Why_is_...eally_going%3F

Suave · July 3rd, 2011, 12:41 PM

Quote:

Originally Posted by Alex

It will say that on the speedometer, but the gauge is often quite optimistic. It will hit the rev limiter around 105 mph actual in top gear, stock gearing/tire sizes.

http://www.ninjette.org/wiki/Why_is_...eally_going%3F

I've heard this before. Is it possible that a speedometer could be reading a slower speed than you are actually going too? Or is it only the other way around?

Suave · July 3rd, 2011, 01:02 PM

nevermind, yes, I just read the thread that was linked to that thread. Depending on tire diameter and gearing it could go either way

alex.s · July 3rd, 2011, 01:20 PM

Quote:

Originally Posted by Suave

nevermind, yes, I just read the thread that was linked to that thread. Depending on tire diameter and gearing it could go either way

it's possible but i've never seen it report slower than you're going. iirc people say the manufacturers err on the side of reporting too fast... wouldn't want someone blaming them for getting a ticket

Alex · July 3rd, 2011, 02:41 PM

Quote:

Originally Posted by Suave

nevermind, yes, I just read the thread that was linked to that thread. Depending on tire diameter and gearing it could go either way

Gearing has nothing to do with it on our bikes, as our speedo is driven off of the front wheel. The sole factor that changes over time on the same bike is the diameter of the front tire. As it wears it will rotate ever so slightly more often for the same distance traveled over the road, so the indicated speed might be very slightly higher (but if it affects it more than 1 mph I'd be surprised).

choneofakind · July 3rd, 2011, 04:08 PM

Quote:

Originally Posted by wtfh4xx

Wish I could say the same for my girlfriend

woah!! i don't know where ya'll were going after this one! I was talking about my ninja 250R!!

gut(mind)ter

JA-Moo · August 26th, 2012, 08:49 AM

On the original topic, The more revs, the more wear, that's simple. As far as engine damage or accelerated wear, the red line is always in the "safe zone" from the factory, for acceptable wear.

You guys/gals are lucky, to live in a motorcycle "age" where there are rev limiters, it's almost impossible to over rev and blow motors up. Many, many motors were blown up without them........

alex.s · August 26th, 2012, 09:53 AM

Quote:

Originally Posted by JA-Moo

Many, many motors were blown up without them........

sounds like a story you haven't told us

JA-Moo · August 26th, 2012, 10:02 AM

Quote:

Originally Posted by alex.s

sounds like a story you haven't told us

Story? I have 40 years of stories of blown motors.........LOL

Racer x · August 26th, 2012, 03:17 PM

This engine is bullet proof. You will really have to do some work to damage it. Wait till I come off the dyno. I am going to spray 30 hp of nitrous on it.

dirty nasty · August 26th, 2012, 05:38 PM

I agree with the general bullet proof status quo. This engine rules. It loves having its neck wrung and the piss beat out of it. Of course, if you do so make sure to check your oil level quite often. I always check mine at every fill up and at the beginning of every day or if I get done with a long cruise. These bikes will use some oil at high RPMs and they need all the oil they can get.

I say shift at 12.5k-13k. That's the sweet spot.

NinjaVanish · August 26th, 2012, 07:31 PM

What about long thruway rides at high rpm? I was going from Buffalo to Rochester, NY and it's about 80 miles at 11k rpm... At one point my bike decelerated and I had pulled to the side of the road to restart but it was having difficulty doing so; I waited a few minutes and retried and it started up with slight hesitation. My fuel was low, could that have been the problem? I know the bike is liquid cooled and going freeway speeds it should have enough flow to keep the coolant at satisfactory temperatures but could it have over heated? How many people take long commutes at elevated high rpm?

Jiggles · August 26th, 2012, 07:37 PM

From my experience she will take at least 3 inches for 30 seconds

RyderRider15 · August 26th, 2012, 07:42 PM

Quote:

Originally Posted by alex.s

side note-
is it not possible to talk about this subject without it sounding like sex? wth!

Whats the difference?

dirty nasty · August 26th, 2012, 08:37 PM

Quote:

Originally Posted by NinjaVanish

What about long thruway rides at high rpm? I was going from Buffalo to Rochester, NY and it's about 80 miles at 11k rpm... At one point my bike decelerated and I had pulled to the side of the road to restart but it was having difficulty doing so; I waited a few minutes and retried and it started up with slight hesitation. My fuel was low, could that have been the problem? I know the bike is liquid cooled and going freeway speeds it should have enough flow to keep the coolant at satisfactory temperatures but could it have over heated? How many people take long commutes at elevated high rpm?

Its fine. I've taken many 200+ mile highway trips on mine. Stop going 80 all the time haha, although you can if you so choose. I've had a few runs where my minimum speed was 80 for an hour or so. These bikes are as capable as anything else (larger/more powerful) on the highway. You'll probably have a more comfortable time on something larger if high speeds are your goal.

You ran out of fuel. I've never had my temp gauge climb even at high speeds on the highway. I have come close to over-heating coming into town sitting at all the lights (stop and go) after a hard run in the hills, but that's it. Same thing happened to me when I was 127 miles from home on its first long distance run. I was freaking out it was a mechanical problem and had it towed home to the tune of $120 only to figure out I ran out of fuel. Life's lessons. Hah!

Panda · August 26th, 2012, 09:39 PM

If he ran out of fuel he wouldn't be able to restart. This sounds similar to what happened to me today.

azimmer11 · August 27th, 2012, 07:34 AM

Quote:

Originally Posted by Boom King

and if she tries to buck you off, just hang on and enjoy the ride

Sometimes she is so loud she'll wake up the neighbors if its late at night

choneofakind · August 27th, 2012, 11:58 AM

Quote:

Originally Posted by NinjaVanish

What about long thruway rides at high rpm? I was going from Buffalo to Rochester, NY and it's about 80 miles at 11k rpm... At one point my bike decelerated and I had pulled to the side of the road to restart but it was having difficulty doing so; I waited a few minutes and retried and it started up with slight hesitation. My fuel was low, could that have been the problem? I know the bike is liquid cooled and going freeway speeds it should have enough flow to keep the coolant at satisfactory temperatures but could it have over heated? How many people take long commutes at elevated high rpm?

Is it necessary to run about an indicated 90mph for that long? I've driven that stretch of thruway many times; I know that the speed limit is not that high.

Sounds like you need to open the gas cap next time it dies like that and try to restart it. Your gas cap might be pulling a vacuum instead of venting like it should.

Bring it down to 75 or so geez.

NJ Ninjette · August 27th, 2012, 12:26 PM

Quote:

Originally Posted by NinjaVanish

What about long thruway rides at high rpm? I was going from Buffalo to Rochester, NY and it's about 80 miles at 11k rpm... At one point my bike decelerated and I had pulled to the side of the road to restart but it was having difficulty doing so; I waited a few minutes and retried and it started up with slight hesitation. My fuel was low, could that have been the problem? I know the bike is liquid cooled and going freeway speeds it should have enough flow to keep the coolant at satisfactory temperatures but could it have over heated? How many people take long commutes at elevated high rpm?

I do a 12 - 14 mile stretch of interstate pretty much 80 mph both ways on my commute. Something like this has happened only once and I was very low on fuel.

NinjaVanish · August 27th, 2012, 12:36 PM

Quote:

Originally Posted by choneofakind

Is it necessary to run about an indicated 90mph for that long? I've driven that stretch of thruway many times; I know that the speed limit is not that high.

Sounds like you need to open the gas cap next time it dies like that and try to restart it. Your gas cap might be pulling a vacuum instead of venting like it should.

Bring it down to 75 or so geez.

Interesting fact about pulling vacuum, thanks for that. My motorcycle is bone stock and at 11k rpm it's definitely not at 90mph

choneofakind · August 27th, 2012, 12:42 PM

Quote:

Originally Posted by NinjaVanish

My motorcycle is bone stock and at 11k rpm it's definitely not at 90mph

sooo what's it indicating at that rpm? When mine's that high, it's always been above 70, no matter if I'm running 14/47, 14/45, or 15/45 gearing...

folky15 · August 27th, 2012, 01:36 PM

Is the tach optimistic like the speedo? Mine revs to an indicated 14k rpm, and actually seems to be a bit more than that.

JA-Moo · August 27th, 2012, 01:45 PM

Quote:

Originally Posted by NinjaVanish

My motorcycle is bone stock and at 11k rpm it's definitely not at 90mph

89.3 for your gear ratio........

NinjaVanish · August 27th, 2012, 03:04 PM

Quote:

Originally Posted by choneofakind

sooo what's it indicating at that rpm? When mine's that high, it's always been above 70, no matter if I'm running 14/47, 14/45, or 15/45 gearing...

I would say about 80 as that was my personal speed ceiling.

JA-Moo · August 27th, 2012, 03:29 PM

Quote:

Originally Posted by choneofakind

sooo what's it indicating at that rpm? When mine's that high, it's always been above 70, no matter if i'm running 14/47, 14/45, or 15/45 gearing...

11000 14/47 85.5
11000 14/45 89.3
11000 15/45 95.6

NinjaVanish · August 27th, 2012, 03:31 PM

Quote:

Originally Posted by JA-Moo

89.3 for your gear ratio........

That's in a perfect scenario though, right? Would the temperature of the motor have any effect on the rpm? I swear I saw 9-10k rpm when I was 60-65mph and usually it's slightly lower than that.

Perhaps it had something to do with the extra weight on me... I had a spare helmet attached to the side of the passenger seat (potential drag), I was in my gear (boots, jeans, jacket, gloves), I had a stuffed back pack that had to have been at least 15lbs, and I'm about 170lbs. So let's say the road isn't entirely smooth, there was some wind, I may've been going slightly uphill, accelerating, and I wasn't tucked while riding. Does 11k in a transient state with real world variables still equate to 89.3mph +/-0.1mph?

JA-Moo · August 27th, 2012, 03:34 PM

The only things that can effect the mechanical ratios (rpm to speed) is a slipping clutch, and tire size.

Jiggles · August 27th, 2012, 03:39 PM

Ninjas sometimes report a higher rpm than they are actually at. Some CDI issue or something

Mountain Dew · August 27th, 2012, 04:02 PM

I was riding 10k+ in slowish traffic for about 25 minutes. As soon as I got to open it up, it overheated and shut off.

choneofakind · August 27th, 2012, 04:48 PM

Quote:

Originally Posted by NinjaVanish

That's in a perfect scenario though, right? Would the temperature of the motor have any effect on the rpm? I swear I saw 9-10k rpm when I was 60-65mph and usually it's slightly lower than that.

Perhaps it had something to do with the extra weight on me... I had a spare helmet attached to the side of the passenger seat (potential drag), I was in my gear (boots, jeans, jacket, gloves), I had a stuffed back pack that had to have been at least 15lbs, and I'm about 170lbs. So let's say the road isn't entirely smooth, there was some wind, I may've been going slightly uphill, accelerating, and I wasn't tucked while riding. Does 11k in a transient state with real world variables still equate to 89.3mph +/-0.1mph?

no, the only way your rpm's would be higher because of load is if your clutch was slipping, and you would definitely notice that.

Your CDI probably just reads high.

JA-Moo · August 28th, 2012, 12:19 PM

I just found the bore/stroke for these little guys. The safe factor (RPM) for many years was 40000ft/min. It is much higher now for a lot of bigger bikes.

But for the 250 it is 14,796 rpm for 4000 ft/min. So even thought they rev high, they are really in the safe zone even at 14,000 RPM.

Bill N · August 28th, 2012, 12:49 PM

Quote:

Originally Posted by choneofakind

no, the only way your rpm's would be higher because of load is if your clutch was slipping, and you would definitely notice that.

Your CDI probably just reads high.

At least for the 2008 model several folks myself included see the Tach read approximately 1000 RPM higher when it warms up compared to when it was cold. Mine does it every ride except in winter when the engine temp is lower. It's a signal/system error and is a false increase:
Cold 60 MPH= 7000RPM
Hot 60 MPH= 8000RPM
It's nothing to be concerned about, just a bit annoying.
Bill

choneofakind · August 28th, 2012, 02:50 PM

Quote:

Originally Posted by Bill N

It's a signal/system error and is a false increase:

Preaching to the choir.

Quote:

Originally Posted by choneofakind

Your CDI probably just reads high.

SmithSwede · August 28th, 2012, 04:13 PM

Yes, the tach reads the output from the CDI unit. Some of the stock CDI units are sensitive to heat, and will throw a false high reading to the tach.

I see this on my bike all the time. In the morning when it's cool, the tach shows 8000 rpm at 70 mph, but in the late afternoon when it's hot, it reads 9000 rpm for 70 mph.

Of course, the engine is still spinning the same speed for the same road speed, assuming no clutch slipping. The tach is just giving a false high reading when it overheats.

http://www.ninjette.org/forums/showthread.php?t=42329

Bob2010 · August 28th, 2012, 04:56 PM

Quote:

Originally Posted by JA-Moo

I just found the bore/stroke for these little guys. The safe factor (RPM) for many years was 40000ft/min. It is much higher now for a lot of bigger bikes.

But for the 250 it is 14,796 rpm for 4000 ft/min. So even thought they rev high, they are really in the safe zone even at 14,000 RPM.

What about the rest of valvetrain ? Can it handle it? Springs? Valve float? Never really looked too far into these things

dirty nasty · August 28th, 2012, 05:31 PM

IIRC the original bikes red lined at 16k. I hear they kept reducing the limiter due to oil consumption at high engine speeds.

July 3rd, 2011, 12:35 PM	#45
Alex ninjette.org dude 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	It will say that on the speedometer, but the gauge is often quite optimistic. It will hit the rev limiter around 105 mph actual in top gear, stock gearing/tire sizes. http://www.ninjette.org/wiki/Why_is_...eally_going%3F __________________________________________________ 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)

July 3rd, 2011, 01:02 PM	#47
Suave ninjette.org member Name: Mark Location: Maryville, Tennessee Join Date: Jun 2011 Motorcycle(s): 2008 Ninja 250r Posts: 94	nevermind, yes, I just read the thread that was linked to that thread. Depending on tire diameter and gearing it could go either way __________________________________________________ "Hey man, I'm not tryin' to start nothin'. But... i wouldn't take that"

August 26th, 2012, 03:17 PM	#54
Racer x ninjette.org certified postwhore 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	This engine is bullet proof. You will really have to do some work to damage it. Wait till I come off the dyno. I am going to spray 30 hp of nitrous on it. __________________________________________________ Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja

August 26th, 2012, 07:31 PM	#56
NinjaVanish ninjette.org member Name: Brian Location: Rochester, NY Join Date: Jul 2012 Motorcycle(s): 2012 Kawasaki Ninja 250R Posts: 18	What about long thruway rides at high rpm? I was going from Buffalo to Rochester, NY and it's about 80 miles at 11k rpm... At one point my bike decelerated and I had pulled to the side of the road to restart but it was having difficulty doing so; I waited a few minutes and retried and it started up with slight hesitation. My fuel was low, could that have been the problem? I know the bike is liquid cooled and going freeway speeds it should have enough flow to keep the coolant at satisfactory temperatures but could it have over heated? How many people take long commutes at elevated high rpm? __________________________________________________ "Only the gentle are ever really strong"

August 26th, 2012, 07:37 PM	#57
Jiggles Jigglin' your Jiglets Name: Sean Location: San Jose, Ca Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much. Blog Entries: 1 MOTM - Apr '13	From my experience she will take at least 3 inches for 30 seconds __________________________________________________ If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs

July 3rd, 2011, 12:16 PM	#44
Jesse8931 ninjette.org guru Name: Jesse Location: Ann arbor mi Join Date: Mar 2011 Motorcycle(s): 2007 ninja 250r Posts: 374	No way if the bike is stock could you hit 115mph even downhill. The math says otherwise

August 26th, 2012, 08:49 AM	#51
JA-Moo ninjette.org member Name: John Location: Rio Rancho Join Date: Aug 2012 Motorcycle(s): many kawasaki 2 stroke triples and a 250R now. Well no more 250R, 2013 300 now Posts: 146	On the original topic, The more revs, the more wear, that's simple. As far as engine damage or accelerated wear, the red line is always in the "safe zone" from the factory, for acceptable wear. You guys/gals are lucky, to live in a motorcycle "age" where there are rev limiters, it's almost impossible to over rev and blow motors up. Many, many motors were blown up without them........

August 26th, 2012, 05:38 PM	#55
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	I agree with the general bullet proof status quo. This engine rules. It loves having its neck wrung and the piss beat out of it. Of course, if you do so make sure to check your oil level quite often. I always check mine at every fill up and at the beginning of every day or if I get done with a long cruise. These bikes will use some oil at high RPMs and they need all the oil they can get. I say shift at 12.5k-13k. That's the sweet spot.

August 26th, 2012, 09:39 PM	#60
Panda not an actual panda Name: dan Location: philadelphia Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250, 2009 CBR600RR (Sold) Posts: A lot.	If he ran out of fuel he wouldn't be able to restart. This sounds similar to what happened to me today.

August 27th, 2012, 01:36 PM	#66
folky15 ninjette.org member Name: Jason Location: Chicago Join Date: Apr 2012 Motorcycle(s): '08 Ninja 250R Posts: 156	Is the tach optimistic like the speedo? Mine revs to an indicated 14k rpm, and actually seems to be a bit more than that. __________________________________________________ Done: Fender Eliminator Kit, Shogun frame sliders, Rim Tape, Freeway Blaster horn, Protons, Rear LEDs, Brake Modulator Planned: Comp Werkes Slip-on, Snorkel Delete, Shimmed Needles

August 27th, 2012, 03:34 PM	#71
JA-Moo ninjette.org member Name: John Location: Rio Rancho Join Date: Aug 2012 Motorcycle(s): many kawasaki 2 stroke triples and a 250R now. Well no more 250R, 2013 300 now Posts: 146	The only things that can effect the mechanical ratios (rpm to speed) is a slipping clutch, and tire size.

August 27th, 2012, 03:39 PM	#72
Jiggles Jigglin' your Jiglets Name: Sean Location: San Jose, Ca Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much. Blog Entries: 1 MOTM - Apr '13	Ninjas sometimes report a higher rpm than they are actually at. Some CDI issue or something __________________________________________________ If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs

August 27th, 2012, 04:02 PM	#73
Mountain Dew Ambrosia. Name: Jaymie Location: Oahu, Hawaii Join Date: Aug 2011 Motorcycle(s): 1974 Honda CB550K0 W.I.P. Posts: A lot.	I was riding 10k+ in slowish traffic for about 25 minutes. As soon as I got to open it up, it overheated and shut off. __________________________________________________ Life's better on the Mountain.

August 28th, 2012, 12:19 PM	#75
JA-Moo ninjette.org member Name: John Location: Rio Rancho Join Date: Aug 2012 Motorcycle(s): many kawasaki 2 stroke triples and a 250R now. Well no more 250R, 2013 300 now Posts: 146	I just found the bore/stroke for these little guys. The safe factor (RPM) for many years was 40000ft/min. It is much higher now for a lot of bigger bikes. But for the 250 it is 14,796 rpm for 4000 ft/min. So even thought they rev high, they are really in the safe zone even at 14,000 RPM.

August 28th, 2012, 04:13 PM	#78
SmithSwede ninjette.org member Name: Prescott Location: Terrell, Texas Join Date: Nov 2011 Motorcycle(s): 2007 BMW F800S; 2012 Ninja 250; 2013 Moto Guzzi V7 Stone, 2016 Triumph Street Triple Rx; 1996 Ducati 900 SS CR Posts: 77	Yes, the tach reads the output from the CDI unit. Some of the stock CDI units are sensitive to heat, and will throw a false high reading to the tach. I see this on my bike all the time. In the morning when it's cool, the tach shows 8000 rpm at 70 mph, but in the late afternoon when it's hot, it reads 9000 rpm for 70 mph. Of course, the engine is still spinning the same speed for the same road speed, assuming no clutch slipping. The tach is just giving a false high reading when it overheats. http://www.ninjette.org/forums/showthread.php?t=42329

August 28th, 2012, 05:31 PM	#80
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	IIRC the original bikes red lined at 16k. I hear they kept reducing the limiter due to oil consumption at high engine speeds.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Police Ninjas	Ntotot	Pictures	39	December 8th, 2014 05:44 AM
New to Ninjas!	nbleak21	New Members	8	August 31st, 2014 12:07 PM
New to the Ninjas	Z1R rider	New Members	27	July 4th, 2014 11:44 AM
Suns Out Ninjas Out	jstcallmeCT	New Members	14	May 17th, 2013 04:46 PM
Rochester, NY Ninjas?	NinjaVanish	New Members	14	August 17th, 2012 09:01 PM