ATV Powertrain [Archive] - Page 130

What is stock main jet?? (12 replies)
Blue smoke? (1 replies)
oversized headpipe needed (1 replies)
Way To Rich (10 replies)
Douglas wheels (4 replies)
Where am I? (9 replies)
250r clearance question? (5 replies)
15 or 16t front sprocket? Please help (5 replies)
what is the lrd pipe made of (0 replies)
440 kit where to start??? (10 replies)
Carb Question? (8 replies)
electric cut out for parking brake (1 replies)
put my quad on a dyno again (21 replies)
14th sprocket with 22'' tires (5 replies)
Fast 300EX (9 replies)
Pipe dilemma (6 replies)
300ex cuts out at half to full throtle (4 replies)
What size jet kit do I need? (1 replies)
300ex big bore? (8 replies)
Question about FCR 39mm Carb... (5 replies)
t-4 and megamax db levels (12 replies)
Oil. where it shouldn't be! (2 replies)
it blows out blue smoke! Help (4 replies)
XR header swap (0 replies)
how much gains should i expect? (2 replies)
400ex slip-on (3 replies)
300ex rebuild... (7 replies)
Removing the evil Limiter (7 replies)
rev limiter on 300EX (1 replies)
Supertrapp with stock headers? (4 replies)
Bought a 400ex carb now what? (6 replies)
Case Savers (After market a joke) (26 replies)
Engine Poping (9 replies)
How loud is a white bro's pro meg? (2 replies)
400ex motor kit? (16 replies)
yoshi exh. system on a 250ex? (0 replies)
pro design kill-swith help (9 replies)
Question on chain tightening on a 300ex!! (5 replies)
supertrapp (1 replies)
Vibration in High RPMs (7 replies)
250r bottom end rebuilt? Do i need it and how much $? (2 replies)
The Dreaded Subject But Im Not Having Any Luck (2 replies)
Air Filters (15 replies)
air filters (0 replies)
need help fast... (9 replies)
Timing Chain (0 replies)
PSI to Compression relation (4 replies)
Thinking about some mods ??? (1 replies)
Fmf Or Cobra? (8 replies)
440 ? (0 replies)
Holy Crap!!!!! (11 replies)
head gasket w/ a 440 (2 replies)
Have you Decked the cylinder (209 replies)
octane? (7 replies)
Modified Stock Carb (3 replies)
Where to get Lower Rod Bearing and Crank Pin for a 400EX (1 replies)
Got another question about break-in. (1 replies)
Does anyone know the valve settings of the 250ex? (1 replies)
bogging...... (11 replies)
Curtis Sparks 40 kit???? (4 replies)
quick gearing question (1 replies)
carillo rod (3 replies)
yoshi header... (1 replies)
stock bore and high compression piston is enough (3 replies)
FMF or White Bros.? (7 replies)
delima (14 replies)
GT Thunder cam vs. TC Racing cam (3 replies)
Making A D.g. Head Pipe...shoter..?? (0 replies)
250x/300ex jetting (2 replies)
Big Gun or White Bros for 300ex (5 replies)
200.00 cdi you pay for a drill hole (19 replies)
outerwares (2 replies)
Valve Question (3 replies)
Alcoholic 416 (3 replies)
gt thunder (6 replies)
Front or rear sproket? (2 replies)
Got it apart, Now can I put it back together... (14 replies)
CT racing exhaust (5 replies)
White Brothers Race Cam (13 replies)
What's The Best Place To Order An Xr400 Cam From ??? (5 replies)
Buying a used FCR 39mm.. (4 replies)
What to do, what to do.....? (22 replies)
another cam question (1 replies)
where do you get things installed? (2 replies)
Engine noise (3 replies)
300ex pipe (4 replies)
Need Price Fast< Wb E Series (7 replies)
help!!! (1 replies)
250r cylinder question? (4 replies)
HELP!~!~!~!~Won't run~!~!~ (2 replies)
#42 pilot jet (5 replies)
Help with MAGURA clutch installation..... (21 replies)
HELP, Cylinder removeal, cant get it off. (2 replies)
Changeing heads on a 300EX (7 replies)
Need advice with White Brothers pipe... (1 replies)
440ex jetting,help me PLEASE! (2 replies)
shifting problems (4 replies)
Chain and throttle (1 replies)
what happins when runnin to lean or rich????? (2 replies)
best exhaust system (12 replies)
rode my new tc stroker 440 today (7 replies)
Home made 300EX oil cooler (12 replies)
choke (1 replies)
outwears air box cover... (9 replies)
White Bros. E series Without end cap (5 replies)
300 vs. cam??? (2 replies)
250r motorheads? (3 replies)
Last min. questions before dropin in 416 and xr400 cam... (8 replies)
not your typical aluminum airbox question? (2 replies)
what chain..... (4 replies)
145-150 main jet (1 replies)
XR400 cam re-review (drag race results) (17 replies)
a couple engine questions... (1 replies)
fmf megamaxx II (17 replies)
best engine mods for a 400ex??? (2 replies)
Pipes and Filters (1 replies)
Quiet Pipes (5 replies)
rigid,kinking chain?? (6 replies)
My Chain Did Not Want to TIghten Up (39 replies)
more FCR carb help!! (1 replies)
Since I'm changing the rings... (1 replies)
Help! (6 replies)
New Fmf Quiet Core Exhaust.... (2 replies)
250R help (22 replies)
Please Help Me!!!!!! (12 replies)
FMF Powercore IV (0 replies)
465 stroker kit from trinity racing (7 replies)
Crank Rod???? (3 replies)
Trouble Shifting (5 replies)
not your typical W/B question (3 replies)
what kind of power should i expect out of my new motor (9 replies)
WB E-Series smoking? (2 replies)
REV kit for a 400EX (19 replies)
400ex Problem (3 replies)
Now she's got some juice...But (9 replies)
400 ex pipe question (2 replies)
Front Sprocket on 300EX (0 replies)
got cyclinder honed how to clean (2 replies)
Smoking Like A Gun! (1 replies)
Carb Problems really need help (9 replies)
wiseco .020 over piston??? (4 replies)
carb problem on ATC 250r (4 replies)
HMF Exhaust (3 replies)
Duncan double barrel help!!!! (12 replies)
Just got 400ex and have a problem!!! (24 replies)
uni-filter or twin air? (4 replies)
FCR 39 Carb Help Requested (5 replies)
440 Head Gasket?!?!??! (2 replies)
Another K&N Question (7 replies)
WB Silent Core Insert (1 replies)
Duncan Fatboy Iv (10 replies)
Repacking White Bros. exhaust (0 replies)
w/b installing disk (i am having some trouble) (32 replies)
case saver question need help (0 replies)
fmf (8 replies)
Port & polish with a stock (rejetted) carb? (10 replies)
Need Help Installing a 14 thooth front sprocket on a 300 EX (8 replies)
what should i do ..... (please reply as soon as you can) (3 replies)
Head Pipes (1 replies)
No cylinder base gasket. (21 replies)
14t (2 replies)
Biggest power gain for a 300EX (2 replies)
250X Exhaust (1 replies)
bigger oil coolers for 400ex???? (13 replies)
Tuning Wb E Series (15 replies)
HRC vs. XR400 cam???? (2 replies)
yoshimura vs. white bros,!!!!!!!!!!!!!! (4 replies)
Hey guyz really need your answer on this one (5 replies)
rejetting carbs (1 replies)
400EX Front Sprocket Help (2 replies)
250EX Exhaust MOD (5 replies)
rev kit and woodruff key (0 replies)
41 or 39 FCR? (5 replies)
? RE: K&N Filter (3 replies)
2 questions (0 replies)
Will not start! HELP!!!!! (3 replies)
how much more power? (5 replies)
Changed Front Spocket (8 replies)
300EX Big Bore Kits (4 replies)
250x Bottom End's Worth (0 replies)
Cam replacement question.... (1 replies)
350x air boot, right? (9 replies)
XR500/350X Conversion (0 replies)
Thinkin of sellinmy Ex (0 replies)
complete system or just the pipe (1 replies)
Will not Start? (2 replies)
t-4 slip-on (5 replies)
Best carb? (11 replies)
Denton steering stabilizer (14 replies)
cam & rockers help please (17 replies)
Needle jet (4 replies)
416 advantages over 440? (7 replies)
Best deal on White Bros E-Series Pipe? (2 replies)
bore kits (1 replies)
will 158 main be too rich on stocker? (2 replies)
Aluminium Airbox (9 replies)
HELP! 250x wont start when its cold outside (5 replies)
Best cam to run with 440? (7 replies)
Manual clutch on a TRX90 (0 replies)
high altitude jetting (7 replies)
To lazy to read back posts about 440 (5 replies)
Lower Gear Ratio (2 replies)
Will my MP twist throttle cable work with my stock thumb throttle? (1 replies)
White Bros Pipe (5 replies)
Stock off/runoff switch ?'s (10 replies)
Modifying the stock silencer? (1 replies)
?more octane = more power? (4 replies)
questions bout my 300ex. (jets,octane, oil) (0 replies)
Blown Head gasket! Need Recommendations For A New One. (3 replies)
300ex vs 300ex (20 replies)
300ex Stock exhaust Mod (2 replies)
Pro-Meg Carbon Pipe?? (6 replies)
.025 bore in 400ex (6 replies)
416, 425, or 440?? (5 replies)
Call me stupid but i am still having trouble w/ pro kill switch (7 replies)
16t front with 416 (3 replies)
Im Sorry Im Sorry Im Sorry !! (3 replies)
Cam?? (1 replies)
main jet size (1 replies)
Curtis Sparks Ignition Key (1 replies)
pilot jet (9 replies)
Does anyone have a CT Racing pipe and muffler for a 300? (0 replies)
New 300ex burning oil (1 replies)
Sprocket suggestions (6 replies)
Methanol, How much gain and who is the best for set up sending it closely jetted (1 replies)
big gun spark arrestor (0 replies)
300 spark plug gap (1 replies)
Help E.s.r. 310 Kit (1 replies)
dg 2-stroke pipes? (3 replies)
List of Promblems (3 replies)
where to buy (1 replies)
changing airboxes!! (400ex) (5 replies)
400 oil cooler (2 replies)
CARB OR CAM? Pls. help me guys. (32 replies)
here's a little help with bore sizes (4 replies)
300ex big bore? (5 replies)
HOTT440EX/LRD Big Bore Exaust (3 replies)
powertrain (0 replies)
hrc cam? (5 replies)
250x help (5 replies)
Warranty iSSUES (4 replies)
400ex PIPE HELP (8 replies)
330EX Sleeve? (1 replies)
What mods required with 416, 425, 440? (11 replies)
Pro kill switch some help please (5 replies)
400ex problem, please help!! (15 replies)
Cant Decide... (7 replies)
Fuel Strainer Screen on 300EX? (2 replies)
Weak spark, help !! (5 replies)
alky carb for 400ex (2 replies)