ATV Powertrain [Archive] - Page 67

FST's website (4 replies)
pipe (6 replies)
trx450 electric start (0 replies)
300ex with a 400ex oil cooler (1 replies)
pics of 300ex with 400ex & 250r plastic (7 replies)
300ex pics with 250r hood scoop mounted (0 replies)
fuel or electrical (7 replies)
motor breakup (0 replies)
what kind of cam (1 replies)
520 o ring (0 replies)
Sprocket Nut (10 replies)
Is there any advantage to gearing like this? (15 replies)
Durablue lock nut? (4 replies)
Clutch chatter.............. (7 replies)
which motor is taller 426 or crf 450 (1 replies)
case saver problem (2 replies)
May Run, No Time to jet... or is there? (4 replies)
Running lean (7 replies)
New clutch on 400ex (12 replies)
Thumper racing sleeve (0 replies)
Sparks 450R (2 replies)
who has best silencier (7 replies)
400ex timing key in a 250r (2 replies)
tires (9 replies)
600ex (10 replies)
PE clutch baskets as good as Hinson? (0 replies)
250R mechanical seal question (4 replies)
Twin Air (2 replies)
300ex bogging down up hill (3 replies)
???anyone know where streamwood is in illinois?? (6 replies)
300ex electronic fan assist (0 replies)
do you have to rejet if... (6 replies)
300ex air scoops (2 replies)
where to get spakrs pipe (8 replies)
300ex hood scoop (6 replies)
HELP! 440EX gas (4 replies)
Clutch slipping (2 replies)
300ex motor conversions (3 replies)
to all you blaster owner's out there (17 replies)
4 stroke eng.building (1 replies)
13 T front (14 replies)
hot start? what does it do (1 replies)
TC Pipe Question (10 replies)
Stage 2 Cam & Timing Key (1 replies)
450S foreman (2 replies)
300ex cam chain keeps breaking (3 replies)
Not reving?? (3 replies)
450 cam chain for 400ex ? (6 replies)
loud tick (5 replies)
Looking for 400EX Pipe ? (21 replies)
440 kit (20 replies)
Edelbrock Thumb throttle?? (6 replies)
What kind of chain is everyone using? (18 replies)
cam2 question (5 replies)
Raditor shrouds (1 replies)
350 triple into X frame? (2 replies)
Gas leak (6 replies)
300ex electrical problem?? (4 replies)
I am going to burn it. (6 replies)
wut quad do i get??? (8 replies)
FCR 41mm throttle cable (3 replies)
stock clutch (3 replies)
416? (6 replies)
anyone with hmf q-core? (9 replies)
crf 450 motor in a lsr frame that has 426? (2 replies)
TC Cams (2 replies)
I Need Help (1 replies)
spark arrester (0 replies)
drag racing motor (0 replies)
mystery choke!! (2 replies)
416 Vs. 426 Vs. 440 (8 replies)
ESR 310 problem? (7 replies)
More jetting questions... (0 replies)
Drive Shaft seal? (2 replies)
Air Mixture screw??? (6 replies)
Need some Jetting help.... (4 replies)
spark arrester (5 replies)
Throttle respnse problem (13 replies)
416 won't start..Help! (6 replies)
starting after getting (2 replies)
Does this sound right?! (10 replies)
Exhaust Leak..? (2 replies)
head gasket (2 replies)
A long shot, but can someone scan a R wiring diagram? (1 replies)
oil resovior full of gas (11 replies)
Pivot bolt help ASAP!!! (5 replies)
what causes popping thru the carb? (3 replies)
elbrock carb (1 replies)
comparison: 400ex vs yfz engine (0 replies)
stock bore 11.1 yes (7 replies)
need help with jetting (3 replies)
Cheapest place for oversized 250R radiator? (2 replies)
Radiator repair (4 replies)
350x conversion worth the money? (6 replies)
piolet jet (3 replies)
what machineshop to use in Indiana (2 replies)
baffles (1 replies)
Thinking of being crazy... (3 replies)
clutch problem.... i think (2 replies)
carb (1 replies)
300EX shifting into Neutral (9 replies)
Storing race gas...... (55 replies)
carb adjustment (2 replies)
motor problem... need help bad (11 replies)
valve springs? (2 replies)
send me pics of your 300ex (0 replies)
250x run with a 400ex? (16 replies)
clutch (2 replies)
will a xr400 side case fit on my 400ex (2 replies)
stripped bolts.. bummer (4 replies)
what do yuo guys think (3 replies)
trx450 fan (1 replies)
electrical updates for R (1 replies)
name that carrier (3 replies)
stupid 400ex err (3 replies)
Bogging problem (detailed description) (10 replies)
Honda 250x upgrades? (8 replies)
39mm FCR Won't Fit in Boot - HELP (5 replies)
need help quick (1 replies)
throttle response problem (1 replies)
300ex Aftermarket Clutch Baskets (0 replies)
Throttle response problem (6 replies)
416 (3 replies)
best way to break in a 2 stroke (8 replies)
I got a Dyna Ignition (11 replies)
Break in (4 replies)
hey motor dudes i need ur opinion (2 replies)
Throttle cable (2 replies)
Stock Carb (2 replies)
Stock rod failures with 440? (1 replies)
Hey guys I need help PLEASE!!! (4 replies)
Links please,, (1 replies)
cooling fan on 400ex (61 replies)
300ex clutch problem (5 replies)
is a 400ex stock bore with 11:1 compression possible?? (6 replies)
Gunner killswitch install?? (5 replies)
got my FCR 40mm today (3 replies)
Mikuni TMX for 250R (3 replies)
My First Valve Adjustment (3 replies)
calling all wb E-series (14 replies)
Transmission? Clutch? Problem (4 replies)
400EX Fuel Mileage (14 replies)
Cam Chain Slack (3 replies)
new 400 (6 replies)
motor swap (2 replies)
Another jetting question (19 replies)
400EX into crf450r questions (1 replies)
fcr accel.pump mod? (2 replies)
300ex questions (1 replies)
Piston Break-In (6 replies)
how many watts are the 400ex lights? (8 replies)
I just bought my ATV !!!!!!!!!!!!!!!!!! (4 replies)
Valve Adj...Feelers (5 replies)
18s real deal (0 replies)
Big Bore (3 replies)
How Reliable would this be??? Please read!!!! To 416 or to 440.. Thats the question (15 replies)
Bike is bogging (4 replies)
Machine Shop Blues (3 replies)
trx450r exhaust (4 replies)
ETON impulse (0 replies)
Where can I get a good starter button? (3 replies)
beartracker carb (0 replies)
rev box (3 replies)
3 Angle Valve Job Questions (4 replies)
clutch cable keeps burning (5 replies)
Wiring diagram? (0 replies)
400ex key (1 replies)
2stroke//4 Stroke Carbs (3 replies)
How is golden west cycle?? (11 replies)
96 links too many for stock gearing? (3 replies)
intake ?? (1 replies)
Is this FMF pipe for a 250r or 400ex? (8 replies)
416 help (1 replies)
Hot cam Stage 1 yes/no/maybe so (6 replies)
CRF450 or 450r? (7 replies)
Just rejetted.. Idle too high (8 replies)
Unleaded fuels or Leaded fuels? (2 replies)
18 inches in the back (18 replies)
best clutch (0 replies)
The time has come (11 replies)
400ex problem! (3 replies)
Need new carrier, suggestions for EX?? (7 replies)
New Valves (6 replies)
Clarke vs IMS (1 replies)
400ex Carb On A 300ex?? (4 replies)
BOring out a 300ex (4 replies)
Smoking (6 replies)
Slapped the 400ex carb on the 250x last night.. (12 replies)
300ex rod into 250x engine? (1 replies)
How to wire old kill switch (2 replies)
Is it ok to do this? (16 replies)
what does dry sump and wet sump exactly mean? (9 replies)
My sleve shattered, Why? (11 replies)
i need an airbox (1 replies)
Fram oil filter (11 replies)
~400ex Exhaust~ (11 replies)
400ex Carb Question, ASAP (8 replies)
clutch..... i think (7 replies)
oil leak (1 replies)
Curtis Sparks (12 replies)
Happy day another Jetting question (9 replies)
wondering about timing keys... (4 replies)
300ex Fuel Delivery (5 replies)
Mickey, 416 WB-E quiet core jetting? help please (2 replies)
Jetting questions...still waiting on my FCR (14 replies)
500ex reliability (0 replies)
Nitrous Kit For 250EX (22 replies)
86 TRX250r (44 replies)
FCR Cable (10 replies)
500ex (8 replies)
Too Much Top End? (7 replies)
350x head on a 300ex jug? (10 replies)
Mickey's 400ex Cool Kit (13 replies)
300ex clutch (3 replies)
H E L P (7 replies)
need help! choke is stuck (2 replies)
Pro Motors??? (0 replies)
help with 400ex airbox (8 replies)
Whats this mean? (13 replies)
Couple of questions for yall (0 replies)
Mickey Dunlap (0 replies)
what sprockets (0 replies)
Adv. Timing on a high comp, big bore. (11 replies)
Electrical problem please help !!! (11 replies)
Predator Rear Sprocket (4 replies)
250x or 300ex air scoops (6 replies)
13 tooth front sprocket ? (5 replies)
Project X (14 replies)
Timing advance key reviews? (3 replies)
400EX Modification Advice (5 replies)
clutch problems (2 replies)
how long do u have to run (1 replies)
Sparks X-4 300ex (1 replies)
do air scoops help for trail riding? (53 replies)
with a 14tooth sprocket can i still run the stock casesaver? (2 replies)
~~~Question for Mickey~~~ (6 replies)
white brothers e2 what do you think? (4 replies)
Axle help..? (11 replies)
air box? (1 replies)
416 JE piston with matching cylinder? (0 replies)
Gas pours out vent when I wheelie (5 replies)
Help identifing carb, off 400ex motor, have numbers. (2 replies)
Needle Jetting Question (6 replies)
I got a hetrick Racing exhuast (4 replies)
stumped (2 replies)
Anyone with a Tusk clutch kit?? (3 replies)
pilot jets (1 replies)
problem with bearing race (6 replies)
300EX is running too lean (4 replies)
FCR Carb (3 replies)