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- Reason for Valve Adjustment (11 replies)
- Just Got My 400ex (4 replies)
- T-4 Jetting Help... (14 replies)
- 300ex Carb Changes (2 replies)
- 22-12.5-9 rub (8 replies)
- 300ex Carb Changes (0 replies)
- Should I switch???? (1 replies)
- 300ex idle prob. (5 replies)
- jets??? (2 replies)
- Starting problum (2 replies)
- Pipes (7 replies)
- carbs (2 replies)
- 300ex question (9 replies)
- What is the best exhaust for racing? (14 replies)
- reverse problem (2 replies)
- yamaha, but still need help (4 replies)
- Um.... (10 replies)
- Hinson clutch basket (0 replies)
- Homemade Alum. Airbox?? (1 replies)
- 400ex vs. Z400 (9 replies)
- Exhaust slip-ons (27 replies)
- what is the best sprocket setup for top speed? (3 replies)
- Sprocket question (2 replies)
- Big Bore Installation (2 replies)
- Carb/Over flow Problems (7 replies)
- wb rev box???? (20 replies)
- 300ex help (3 replies)
- removing reverse lever and p. brake (2 replies)
- Xr600 Swap To 400ex (20 replies)
- K&n (7 replies)
- top end rebuild????????? (1 replies)
- 440 kit..how much hp? (24 replies)
- 350X Engine Mounts (1 replies)
- Clutch lever ? (1 replies)
- marcums 416 installed (4 replies)
- Do i rejet with the HMF slip on? Does anyone have pictuers and is it a good pipe (15 replies)
- sparks advance key ,416,hotcam stage 2 (0 replies)
- Valve Springs ? (6 replies)
- Honda African Twin 750 (9 replies)
- clutch perch/lever (8 replies)
- white bros. pro meg discs (1 replies)
- clutch perch (0 replies)
- New at this...help me out....... (10 replies)
- Gas Additives (4 replies)
- jetting for air box mods (1 replies)
- Chain questions? (4 replies)
- Hetrick racing pie (4 replies)
- compression good or maybe not so good (0 replies)
- For all the FCR39mm carb owners (42 replies)
- Q.R.N. 250x & 300ex mounts the same? (2 replies)
- snaped a jet need help fast (11 replies)
- 39 Fcr (2 replies)
- oil temperature (6 replies)
- How does this sound.......... (3 replies)
- skipping??? (5 replies)
- What does this do? How much? (3 replies)
- First time 300EX engine rebuild....... (0 replies)
- hot cams stage 1 or 2 (14 replies)
- back-up kick start (22 replies)
- looking for new ride (0 replies)
- Drowned my quad!!!!! PLEAASE HELP! (5 replies)
- My Clutch (0 replies)
- white bros. rev kit for 400ex (1 replies)
- 400ex FMF megamaxII exhaust question. (1 replies)
- Should i get the HMF slip on pipe? Please help! (7 replies)
- motor work? (6 replies)
- 350x problem (2 replies)
- problem with lifter pin (0 replies)
- doug gust's supertrapp silencer? (1 replies)
- Sweet carb mod (16 replies)
- cam timing (3 replies)
- Output Shaft problem? (1 replies)
- Tripple Angle Valve Job? (3 replies)
- Power Delay (5 replies)
- Drown my 400 (3 replies)
- whats goin on (1 replies)
- need advice!!!!!!! (4 replies)
- FST 330 big bore kit??? (1 replies)
- should i use a 155 or a 160 main jet? (3 replies)
- How Many Disc E-Series??? (3 replies)
- WB Pro Meg jetting (3 replies)
- Hmf slip on?? (0 replies)
- BIG probs. with the rear!!! (1 replies)
- W/B or Big gun (30 replies)
- Headpipe's (0 replies)
- fst oil cooler pic's (4 replies)
- replacement oil cooler/res. (12 replies)
- decompression question (for a 250x precisly) (2 replies)
- The Best Mod For High Hp Quads!! (12 replies)
- 16t front or 36t rear sprocket descision. (3 replies)
- Sprocket Question (3 replies)
- t-4, powercore,e-series? (14 replies)
- what does raising the needle do? (2 replies)
- ticking sound (5 replies)
- Bigger than a 170 main on a 400ex?? (11 replies)
- is it too lean? (1 replies)
- keihin pilot jets (2 replies)
- 440cc Improvement? (4 replies)
- Has anybody seen this thing? (4 replies)
- Digital temp guage (0 replies)
- eng. temp gauge? (4 replies)
- Help with Results of WB cam (0 replies)
- clutch plates (3 replies)
- Ordering pro circuit T4 slipon tomorrow unless anyone says something... (8 replies)
- How to Calculate CC's? (7 replies)
- Trick chain guide (3 replies)
- Need some help with mods (8 replies)
- main jet and pilliot? (1 replies)
- installing new throttle cable (3 replies)
- clutch slippering problem (22 replies)
- how to brake her in (13 replies)
- What slip on produces most power!!!! (7 replies)
- what pipe/silencer u recomend for a blaster fmf,lrd,ct,pro circuit.... (6 replies)
- air boot problem (3 replies)
- Cheep power increase for 400EX?? (9 replies)
- 300ex cam? (3 replies)
- jetting problem help (2 replies)
- Oil Coolers. (2 replies)
- Piston Rings HELPPPP !! (6 replies)
- HMF slip on...sounds baaad! (5 replies)
- Terrible sound after piston/cam install... (14 replies)
- Terrible sound after piston/cam install... (0 replies)
- FST 390 big bore kit (0 replies)
- Best place to order in Canada? (3 replies)
- Curtis Sparks or White Brothers?? Anyone have either one? (29 replies)
- carb problems...HELP! (5 replies)
- Must See New Quad!!! (5 replies)
- adam sicks 426 kit (9 replies)
- Air/Fuel Mix Screw?? (2 replies)
- I need some jetting help! (17 replies)
- Jetting help (1 replies)
- E-series / Jetting???? (2 replies)
- sparks advance timing key (2 replies)
- sprockets and tire size (1 replies)
- need help fast!!!does anyone have the part# for the tapered axle bearings? (0 replies)
- yoshimura??? (0 replies)
- cv joint (1 replies)
- What is a spark arrestor? (4 replies)
- i need answers now (4 replies)
- anyone else ? (2 replies)
- Engine builders pipes websites???? (2 replies)
- Why not remove the spark arrester? (2 replies)
- Question for those who have a cr igniton on a R... (0 replies)
- More good news from C&D Racing!!! (3 replies)
- stumble at low throttle (4 replies)
- What kind of carb? (1 replies)
- Whats good about a new bearing carrier?? (1 replies)
- Low Range Slip on (2 replies)
- Chain Help (1 replies)
- K&N jet question (2 replies)
- Stock 400 EX with no airbox lid? (8 replies)
- Kendall oil with energy release (2 replies)
- 250 Ex Exhaust (2 replies)
- 400ex got wet, now wont start (9 replies)
- New cam AND piston break-in... (3 replies)
- Big bore rebuild (1 replies)
- NOS on a 400ex!?!?!? (5 replies)
- White bros R4 slip on (400ex) (2 replies)
- This is weird. (5 replies)
- got back from my trip to plimouth MA (0 replies)
- im confused!! please help (3 replies)
- bike specs?? (0 replies)
- Leaky White Bro's (7 replies)
- Quiet end cap for PowerCore IV (0 replies)
- White Bros Full System (6 replies)
- Is this ok to do??? (6 replies)
- 416 kit questions??????? (6 replies)
- When to adjust valves on a 400 EX? (3 replies)
- 250 EX Rears. (1 replies)
- case savor? (10 replies)
- 250r sputtering??? (0 replies)
- Meszaro's Motorsports Axle Nut (3 replies)
- A question for people who know. (3 replies)
- Best place for DG Nerf Bar? (0 replies)
- Rear Axle Locknuts keep Loosening!! (2 replies)
- pipes (1 replies)
- 440 kit (5 replies)
- What the Heck Happend!!! (77 replies)
- Not Again!!! (10 replies)
- 300ex rev kit (0 replies)
- Blaster Question (3 replies)
- What slip on can i get w\out rejetting (1 replies)
- 300ex????? (1 replies)
- 400ex pull bar (4 replies)
- K&n power kit (1 replies)
- 300ex_jetting (quad experts needed) (4 replies)
- ??? (1 replies)
- Which silencer for my 400EX? (13 replies)
- $500 hop-up budget (3 replies)
- Anyone have this profab 330 kit??? (6 replies)
- hey guys got a 250R silncer question u guys are usually good at this stuff (2 replies)
- Throttle cable probs (0 replies)
- What causes this?? (11 replies)
- Anyone Please... ? (6 replies)
- outwares and k&n??? (4 replies)
- bunch of bull (21 replies)
- Lrd Exhaust (19 replies)
- Used XR Cam (0 replies)
- Yoshimira Slip On ?? (1 replies)
- slipon w/heapipe vs full system (0 replies)
- Ultra Lite Battery (1 replies)
- Engine Problem..??? and question.... (4 replies)
- open air box good or bad? (9 replies)
- need help on my COOL HEAD (4 replies)
- Oil cooler questions (1 replies)
- 250x wont run (2 replies)
- need more air (3 replies)
- Is it common for 400ex's engine to be a little noisy? (5 replies)
- 243cc...top speed (9 replies)
- Aftermarket Batteries for 400EX? (14 replies)
- How Does the 416 kit w/ XR cam and FCR Carb Compare to a C-Dale????? (16 replies)
- How to install a K&N Powerkit (47 replies)
- best bangs for the bucks ? (3 replies)
- what is the lift of a 400ex stock cam? (1 replies)
- 250ex question? (10 replies)
- t-4 rejet for a 250ex (0 replies)
- FMF Titanium 4 (4 replies)
- Outerwears airbox lid (3 replies)
- ordered omf scoops but i cant get them on.....I need help (7 replies)
- What should I do??? (4 replies)
- Bike Idling High (2 replies)
- Help A Friend With Jetting?? (0 replies)
- pro circuit slip on help me now (2 replies)
- Quick review on the Stage 2 HotCam (9 replies)
- 300ex noise (1 replies)
- what size jet you guys run with T4 slipon? (3 replies)
- Best Airfilter for the sand? (1 replies)
- High compression? OK, or not? (8 replies)
- 400EX motor cutting out at revs (5 replies)
- Installing Hot Cam Stage 2 (17 replies)
- Hetricks Racing.... (4 replies)
- 400ex wont go in reverse (16 replies)
- WB Rev box (4 replies)
- Im a dumbass.....help! (3 replies)
- pro design kill switch (installation) (7 replies)
- Wb Vs. Dg (3 replies)
- Stock pipe mods w/Stage 2 cam (2 replies)
- 300ex main jet (1 replies)
- Finished reverse mod on my 250x (7 replies)
- what the heck is a counter shaft sprocket????? (4 replies)
- rear end went out (4 replies)
- Valve Clearance on HotCams... (4 replies)
- Another 300ex jetting question. (2 replies)
- stage one or stage two (1 replies)
- 250x carbs (0 replies)
- is my cam messed up? (5 replies)
- New cam breakin tips... (13 replies)
- Carb. Modding (1 replies)
- what do u 300 ex guys think about the FST oil coolers? (2 replies)
- Best Exhaust-system - with Dyno Testings (0 replies)
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