- welp...im screwed...(i think) (32 replies)
- K&N Air Filter (2 replies)
- Thumper web pages??? (0 replies)
- tpi dial a jet (3 replies)
- Best slip-on pipe (3 replies)
- jetting (5 replies)
- retime on a 01 raptor (3 replies)
- Alot of Questions I need Answered PLease Help! (2 replies)
- Sprokets for my 300ex (12 replies)
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- ohio?? (5 replies)
- Coat your cases!!!???? (9 replies)
- Smoking at startup (6 replies)
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- Every 250ex Lover Check It Out.. (3 replies)
- 400ex go faster (8 replies)
- Problem, need help.. (17 replies)
- check out this phatty new wb exhaust!!! (1 replies)
- Ok here we go.. (1 replies)
- rev limiters (10 replies)
- Cheapest place for sprockets (1 replies)
- Gearing question help me out (1 replies)
- What Will Win In A Drag? (21 replies)
- i'm confused about a comment on hmfs website... (3 replies)
- 14t (2 replies)
- 40 Pilot Jet ? (8 replies)
- slip on ? (5 replies)
- what gears are should i run for mx (8 replies)
- FMF Mega Max (9 replies)
- Which Filter for dusty conditions with a lid? (43 replies)
- White Brothers R4 (10 replies)
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- scrambler speed (9 replies)
- boring over (5 replies)
- HMF exhaust (7 replies)
- Sparks Racing (4 replies)
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- Stupid WB exhuast (4 replies)
- BIG QUESTION this can be answered by many~~~~~~ (11 replies)
- Where are the F.A.Q.? (2 replies)
- Pipe question. (0 replies)
- Best way to get rid of $300? (3 replies)
- choke screws reinstall (4 replies)
- Hrc or xr or stage #1 with (12:1) compression (1 replies)
- CTin (0 replies)
- My Ex Was 2 Slow (21 replies)
- 440exme-response, mailbox full (0 replies)
- Some Good Info (7 replies)
- Internal/External Gearing (4 replies)
- removing choke? (9 replies)
- Fastest Quad (64 replies)
- 400ex wiring diagram (1 replies)
- Can't Get it! (1 replies)
- Quad isn't starting,QUICK replays plz!! (7 replies)
- header and e series (0 replies)
- Jetting (0 replies)
- 39fcr vs 41fcr (6 replies)
- A very important question (1 replies)
- Where to buy my 416 kit (10 replies)
- Brok.3 Or neone else with the powroll bore kit installed. (3 replies)
- Is a degree key for me? (7 replies)
- Hows this sound? Power? (17 replies)
- 300ex (1 replies)
- Gearing.. (4 replies)
- Read: (4 replies)
- Sprocket (2 replies)
- PC 2000 on a 250r ? (19 replies)
- Who Has the best deal for chain + sprockets??? (11 replies)
- powerbomb header (21 replies)
- piston question (8 replies)
- important 400ex info (17 replies)
- how much power? PLZ RESPOND! (9 replies)
- Hesitation problem (5 replies)
- what size end cap do you run on a T4 silencer? (2 replies)
- Can only popstart it (16 replies)
- 250ex ? (5 replies)
- Jetting ? (1 replies)
- Weak 300EX (1 replies)
- Counter balance (1 replies)
- sprocket problem (17 replies)
- AAARGH Not Again! (36 replies)
- A good question for SMART atv owners. (4 replies)
- hey what about graydon proline?? (2 replies)
- Need pics of stock oil cooler with YZF conversion (3 replies)
- Which Pipe for a 400?? (26 replies)
- Best Pipe For a 400ex (10 replies)
- how big?? (5 replies)
- Would It???????? (7 replies)
- The weigh of 400ex or 650r motor??? (5 replies)
- Lost Site... (1 replies)
- white bros (10 replies)
- Wheel Bearing help (2 replies)
- Is a 250R sprocket hub the same as 400EX? (2 replies)
- not starting (5 replies)
- JE 416 Piston (3 replies)
- 300 ex (5 replies)
- Big Fin Head (39 replies)
- How can I make more power with the stock pipe? (2 replies)
- PJ Racing Air Box!!! (54 replies)
- changing filter (1 replies)
- Is there really a rev kit for a 250ex? (4 replies)
- 250r pipes... (3 replies)
- removal of engine compression braking (7 replies)
- c'mon guys i need help big time (4 replies)
- first mods for 400ex? new to four strokes help (12 replies)
- 400ex: how to remove the comp release (6 replies)
- lid (2 replies)
- Lrd silencer loose (6 replies)
- Which pipe once again!!! (20 replies)
- Rotax 250R W/ 50 HP! (21 replies)
- wiring diagram (2 replies)
- mod 250r vs. raptor (33 replies)
- 600cc engine in a 400 frame (3 replies)
- proper way 2 break in a crf 230 f (1 replies)
- 250r rear axle sprocket hub how do you remove it?help (2 replies)
- For those with the 500 stroker kit.... (6 replies)
- Cr500 (1 replies)
- 6th gear????? (25 replies)
- Where Did He Get A K&n Powerkit For $44.99??? (4 replies)
- about the strokers..... (4 replies)
- Clymer Manuals?? (6 replies)
- 250x carb adjustment (1 replies)
- Series 22 Jets (3 replies)
- TRX CT310 Cyl (10 replies)
- Need Help!!! (3 replies)
- 250EX, noise when shifting (1 replies)
- 400ex (2 replies)
- how to keep up with a raptor (21 replies)
- 300ex (2 replies)
- stroker motor (6 replies)
- Jetting ? (1 replies)
- AV gas (2 replies)
- Holes in airbox lid (2 replies)
- Airbox lid....NEED HELP (8 replies)
- 300ex pipes (4 replies)
- header and airbox lid (9 replies)
- free mods (22 replies)
- 440ex 41fcr jetting (1 replies)
- Battery Help (3 replies)
- 400ex add on light kits (26 replies)
- Jetting 400 (0 replies)
- Crowley Off Road Scoops (42 replies)
- Keihin FCR39 Carb Model Number (1 replies)
- 330? How bad is it? (53 replies)
- stock valve size on 400ex (0 replies)
- air box snorkle (14 replies)
- starting in second gear (9 replies)
- With a new Billet carrier, do I need O-rings (2 replies)
- OK, I've decided on..... (6 replies)
- Speed (6 replies)
- Xr 80 Help (0 replies)
- Should I get a higher rev box? (13 replies)
- Rockers (5 replies)
- new cfm airbox? (0 replies)
- Will a white bros header work with a t-4 silencer on a 300ex. (3 replies)
- Gas (2 replies)
- 250ex Mods??? (14 replies)
- How long to tear down and rebuild? (18 replies)
- 400 difficult start (2 replies)
- 400ex Crankcase Venting (30 replies)
- Homebrew Octane Boosters (10 replies)
- Do you think this will really work? (5 replies)
- Good Slip-On Exhaust shootout here! (12 replies)
- XR 400 side cover (44 replies)
- E-series discs I am a little confused (4 replies)
- OK, how about this one: "What motor kit do you guys reccommend?" (16 replies)
- carbs (3 replies)
- Paul Best?? (2 replies)
- TC 505 kit? (83 replies)
- wat is vented valve cover (5 replies)
- Vasoline In Your Gas For Octane??? (18 replies)
- anyone have a hmf full system? (0 replies)
- xr400 head gasket (2 replies)
- 250r heelllp (7 replies)
- Market for 400ex motors? (2 replies)
- cdi box (1 replies)
- 250EX rev box (6 replies)
- race gas (15 replies)
- thanks (3 replies)
- 250r transmission oil (12 replies)
- 440 ex big bore kit (7 replies)
- There's no stupid questions (2 replies)
- Aviation fuel ?'s (21 replies)
- how much oil do I add? (2 replies)
- 400 ex clutch set ups (5 replies)
- It's ALIVE!!!!!!!!!! (10 replies)
- 400ex carb (3 replies)
- 300ex Pipe Shootout (1 replies)
- DW-slip-on pipe Shootout!!! (3 replies)
- Dila jet (4 replies)
- What mod next? (3 replies)
- gearing (2 replies)
- oregonrider89~!!!!! (0 replies)
- 316.330.385 bore/stroker (0 replies)
- 295cc Kit (5 replies)
- Cams? (6 replies)
- White Bros. Pro-Meg (2 replies)
- chain stretch (3 replies)
- kinda stupod question buttt (4 replies)
- 416, 10.8-1 and hotcams jetting. Help before I shoot it. (9 replies)
- How to keep up with a Banshee? (54 replies)
- 250r (3 replies)
- 250X First Gear (9 replies)
- Need some help in the air (1 replies)
- 250r Ram Valve (1 replies)
- cheap hotcam on ebay (1 replies)
- This 440 is Banshee - FAST! (10 replies)
- four stroke tech oil cooler ???? (1 replies)
- what size jet (3 replies)
- ct racing (0 replies)
- running 162 main on stock engine???? (2 replies)
- Wow what a difference on the 400EX !!! (6 replies)
- fcr problem (6 replies)
- Hard welded rockers (10 replies)
- Bore kit for a 300 (1 replies)
- jetting problem? (3 replies)
- sprockets (8 replies)
- FCR pilot jet? (1 replies)
- Arrow On Top Of Piston (18 replies)
- Does anyone Know Jack ***** about a 39FCR Carb???????? (7 replies)
- sparks bolt on kit (4 replies)
- one more question (0 replies)
- What's the best gearing for 400 (2 replies)
- Sparks Ignition Advanced Key (9 replies)
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- taking 300ex motor out! (15 replies)
- Stock Engine Mods (3 replies)
- modified 400 ex (9 replies)
- 39 fcr accelerator pump (0 replies)
- Cam Chain? (2 replies)
- weak battery? (1 replies)
- k&n jet kit question? (1 replies)
- Tc web site (14 replies)
- What series pilot do I need? (10 replies)
- ? (4 replies)
- porting question (3 replies)
- 11:1 piston swap (7 replies)
- 300ex drop in webcam questions (4 replies)
- What kind of chain and sprokets (15 replies)
- jetting carb (5 replies)
- 250 stock main jet (5 replies)
- Are Curtis Sparks X-6's too loud? (7 replies)
- stock heat shield removed (2 replies)
- Are all Curtis Sparks motors strokers? (8 replies)
- e series info.. (6 replies)
- removing choke (1 replies)
- ADD a 250x starter to a 300...??? (4 replies)
- fcr owners please look, need help (9 replies)