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#1 |
ninjette.org newbie
Name: jose
Location: orlando
Join Date: Feb 2013 Motorcycle(s): 250 kawasaki Posts: 9
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front end chatter...
im feeling a shatter when i start going hard on the gas on mid turn and leaning over.. any sugestions.
i havent set up my sack and suspension wise i have racetech emulator,.75 spring from sonic and 15 w fork oil idk the brand and set to 170 mm. my weitgh 170 with gear on, sometimes i was getting away with just giving it more gas.. need some help on this |
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#3 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Chatter aye.... front set to hard? That would be a first on a 250 lol. How is your front setup currently?
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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#4 |
ninjette.org newbie
Name: jose
Location: orlando
Join Date: Feb 2013 Motorcycle(s): 250 kawasaki Posts: 9
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.75 springs
15w fork oil at 170 mm racetech emulators and no i dint drill the rod ummm to hard? idk!!! i put a zip tide on the fork and it looks like i have a good travel on them so idk |
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#5 |
Board Member
Name: ...
Location: WI
Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.
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If you did not drill the rods at all you have about twice the compression damping. Do the install as instructed or remove the emulators.
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#6 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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not drilling the old oil holes means that the emulators are literally doing almost nothing.
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#7 |
Board Member
Name: ...
Location: WI
Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.
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I verified with racetech and I was correct. You are getting damping from both the rod holes and the emulator.
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#8 |
CVMA / AFM / M1GP #250
Name: Steve
Location: Los Angeles
Join Date: Sep 2009 Motorcycle(s): 2009 Ninja 250r, 2011 Zero S, 2009 KLR 650 Posts: A lot.
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Moar throttle
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#9 |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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I have front end chatter too, but I think it's because I'm using a fork oil that's too heavy and my oil level is set too high. Need to change those things asap... and @joseg1981 when race tech designed their emulators, I think they might have known what they were doing. So if they ask you to drill the dampening rod, drill the d**n dampening rod... lol Same goes for me, if they ask you to set oil lvl at 140 and use 15w oil, don't set it at 120 and use 20w oil...
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#10 |
ninjette.org newbie
Name: jose
Location: orlando
Join Date: Feb 2013 Motorcycle(s): 250 kawasaki Posts: 9
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So phyco what's your current set up on the front end? And what are you planning to change?
Rexbox i did try more gas but after a certain point the shatter came back lol |
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#11 | |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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Quote:
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#12 |
CVMA #92
Name: Bryan
Location: socal
Join Date: May 2012 Motorcycle(s): harleys Posts: 242
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So mix 10W and 20W together.
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#13 |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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Is it ok to mix two different brands of oils? as no company gives 10w and 20w both. I know Motul sells 20w here, but not 10w. I was planning on using hydraulic oil.
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#14 |
Board Member
Name: ...
Location: WI
Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.
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It is ok to mix oil. That's how I get my 12.5 wt oil.
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#15 | |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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Quote:
you could always use 10 in the left fork and 20 in the right fork
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#16 | |
sail away
Name: Jon
Location: San Jose
Join Date: Jul 2012 Motorcycle(s): gixxer (sold), ninjette (upgrade!) Posts: 964
Blog Entries: 8
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Quote:
![]() Also check to make sure: -your steering nut is tight -all chassis bolts are tight (especially engine bolts) -your forks are not twisted (undo and redo the upper and lower triple bolts) -your wheel is properly balanced.
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Unregistered found this post helpful. Track Day Preparation Checklist 1. Financial 2. Mental 3. Physical 4. Gear / Bike |
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#17 |
CVMA #92
Name: Bryan
Location: socal
Join Date: May 2012 Motorcycle(s): harleys Posts: 242
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#18 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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unless you are talking about the highspeed valve on the emulator.... but the part about penzoil and motul exploding was spot on though.
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#19 |
L8APEX
Name: CRA#33 EXPERT
Location: Mankato, MN
Join Date: Nov 2011 Motorcycle(s): 07 KTM 950SMR, 06 KTM 450SMR, 99 KTM 300MXC, 00 Derbi GPR 50, 09 Ninja 250 racebike, race with www.cra-mn.org! Posts: 233
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What tire and pressures?
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#20 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Yea, I would start there. It's cheaper....
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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#21 |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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I believe I was on stock tires with 28psi front and 30psi rear, but it's only on really bumpy roads.
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#22 |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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Wassup gents...Jose and I worked on our bikes at the same time. I drilled the left side damper rod and am in the process of removing my right fork. I will be racing PBIR next weekend so hopefully this cures the chatter. Wish me luck.
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CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#23 |
la pussy gata
Name: kit
Location: xx
Join Date: Jan 2011 Motorcycle(s): big wheel Posts: 540
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#24 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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I think the newbs would not be able to distinguish what of his post is true or not
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#25 | |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#26 | |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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Quote:
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#27 |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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I ordered 15w fork oil off amazon prime, coz my friend was coming down from the states. Guess my fantastic luck... They sent me 5w oil...
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#28 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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Dont mean to thread jack, but which spring rate should I go with? 170 lb without gear. 185-187 with gear. 75 or 80 kg/mm? kind of conflicting rates between Race-tech and Sonic Springs calculators.
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HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
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#29 | |
ninjette.org certified postwhore
Name: Hansveer
Location: Bombay, India
Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.
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Quote:
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#30 |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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IMO, the softer option might be a wiser choice. If you want a stiffer feel, you can always add preloaders. What would you do if you went with the stiffer option and found that you need to reduce stiffness a tad? You probably can't...try calling them. I've spoken to both and they seem helpful on the phone.
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CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#31 | |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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Quote:
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HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
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#32 | |
ninjette.org member
Name: Eric
Location: SF Bay Area
Join Date: May 2011 Motorcycle(s): none yet Posts: 228
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Quote:
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#33 | |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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Quote:
I haven't made any adjustments on my preload since I wanted to take it one step at a time in trouble-shooting the chatter issue.
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CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#34 |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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I got the Sling Shot Racing preloaders.
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CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#35 |
former ninja 250'er
Name: Geo
Location: NE Ohio
Join Date: Jan 2013 Motorcycle(s): Aprilia 1000R, CRF450, CBR600RR tracktoy, Ninja 250 -- GONE!!!!! Posts: 153
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ok, this is a bit eye opening... we're running bone stock front end. are there things that should be tweaked? i'm just the sponsor/mechanic/tuner and have the disadvantage of not being the actual rider - my son is, and the rider feedback is limited. like, "so how'd it feel out there?" answer: "good". yah thanks...
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#36 | |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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Quote:
__________________________________________________
HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
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#37 | |
ninjette.org member
Name: Jesus
Location: Orlando, FL
Join Date: Aug 2012 Motorcycle(s): 2008 Ninja 250r, 2003 GSX R600 Posts: 64
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Quote:
__________________________________________________
CCS AM#818 Equipment:XTracing, Tyga Performance, Bridgestone, Hotbodies Bodywork, Pitbull, Woodcraft |
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#38 |
CVMA / AFM / M1GP #250
Name: Steve
Location: Los Angeles
Join Date: Sep 2009 Motorcycle(s): 2009 Ninja 250r, 2011 Zero S, 2009 KLR 650 Posts: A lot.
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#39 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
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its easy to call something a bad idea. its harder to explain accurately why its a bad idea. theres nothing wrong with mixing oil weights. 50/50 10/20 makes 15.
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#40 |
ninjette.org member
Name: Eric
Location: SF Bay Area
Join Date: May 2011 Motorcycle(s): none yet Posts: 228
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In the stock forks there is a metal spacer (& washer) that sit under the cap. They should have been re-intalled unless uour pre-load caps had spacers. You can fine tune you front end, in particular, your pre-load adjustment by changing different spacers lengths.
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