- comparison (2 replies)
- Jet bent? In carb? (7 replies)
- 450r stock axle fit 400ex????? (1 replies)
- choke removal (5 replies)
- axle nut stuck (13 replies)
- wiggles (3 replies)
- 250r help needed on cylinder swap (0 replies)
- exhaust question (27 replies)
- Rossier for 400ex? (1 replies)
- Honda OS Pistons? (4 replies)
- welding something on to the rear swing arm (4 replies)
- 250x stalling (1 replies)
- wiseco pistons (1 replies)
- Sprocket question (12 replies)
- Honda (13 replies)
- new crank break in (1 replies)
- Which would be better? (11 replies)
- carrier bearing blues!!!!!!!!! (2 replies)
- White Brothers E2 (3 replies)
- Silver Lake Db for slip ons (8 replies)
- Question about Big gun exhaust. (1 replies)
- Lectron Carbs (6 replies)
- Burgaurd Swing Arm (11 replies)
- Mezsaro's Axle Nut (0 replies)
- Hub Nut (7 replies)
- k&n??? (9 replies)
- 450 conversion to new 450r or yfz (5 replies)
- K&N PreCharger or Outerwears PreFilter?? (4 replies)
- What would a 470 Kit on my YFZ do exactly.. (6 replies)
- Quetion about gearing... (2 replies)
- How would I read this pulg???? (16 replies)
- front sprocket loose on shaft? (2 replies)
- 400ex plastic?? (2 replies)
- 400ex Cam ID Engine builders please help! (0 replies)
- Quick carb question from a newbie.... (7 replies)
- just the cam (8 replies)
- Open lid or no? (7 replies)
- Mini Smoking (0 replies)
- which chain produces the least... (2 replies)
- Can nos be installed on a 400ex (24 replies)
- Ceramic or Stainless? (5 replies)
- I am tired of getting spanked... (20 replies)
- which makes more power (2 replies)
- Oiling UNI filter (5 replies)
- GT Thunder head (5 replies)
- 400ex cuting out (1 replies)
- Inline finned radiator- where to buy? (3 replies)
- fdo racings # (1 replies)
- is this going to work? (5 replies)
- 400ex Problem???? (3 replies)
- carb vents (13 replies)
- Intake and exhaust sizes for YFZ & 450r?? (0 replies)
- Hmf or Lrd (11 replies)
- Motor Cavity Height? (0 replies)
- Mini smoking....... (4 replies)
- Clutch is goofey (3 replies)
- is 165 to big? (3 replies)
- Kick Start? (1 replies)
- Faster Raptor (9 replies)
- Expensive Parts (2 replies)
- carb mod ? (5 replies)
- pipe ? (3 replies)
- air scoops (4 replies)
- seat troubles (3 replies)
- 400ex timing chain installation (1 replies)
- camshafts (5 replies)
- 460-465 strocker ?'ssssss (4 replies)
- 300ex chain size (3 replies)
- Spits,dies sumtimes runs good. (3 replies)
- loose (6 replies)
- Carb Questions... (6 replies)
- anybody know what header to use (1 replies)
- adjust valves, feeler guage ? QUICK!!! (17 replies)
- 250ex -> 450 (5 replies)
- Just A Question (3 replies)
- Motion Pro Twist Throttle (0 replies)
- high comp 400 vs. 416 (6 replies)
- 426 break in? (6 replies)
- Sparks 8 plate Vs. Barnett clutch (11 replies)
- Tusk clutch kits (7 replies)
- Clutch Assembly Issue (1 replies)
- What should my next engine MOD be? (8 replies)
- RPM's getting higher and lower (7 replies)
- she wont start (6 replies)
- 300ex engine kits? (1 replies)
- 450es needs more power what to do? (1 replies)
- anyone ever had their engine built by LRD??? (2 replies)
- Disks vs. Turndown (9 replies)
- no spark.. (0 replies)
- porting (4 replies)
- best place for just porting (2 replies)
- 400ex hp (13 replies)
- putting in a cam and 416 piston your self (7 replies)
- Where To Order Pro Circuit T-4? (7 replies)
- Need help XR600R in 400EX frame (6 replies)
- Who builds the best radiator? (3 replies)
- HELP with electrical.. (5 replies)
- Graydon Proline (4 replies)
- 250ex+t4 (4 replies)
- New Cam - Rejet?? (2 replies)
- What size tires for drage racing? (1 replies)
- Swingarm bearing ? (0 replies)
- Keihin Carb's....Need More Info (3 replies)
- K&N kit with jets question (0 replies)
- how do you get the dust seals in the carrier??? (1 replies)
- hmf qc/sa (3 replies)
- Stiff thumb throttle (2 replies)
- carb needle problem (3 replies)
- Help !! (2 replies)
- DB leval of full Pro Circuit (3 replies)
- whats the problem (4 replies)
- Ct Racing (3 replies)
- Rancher/Foreman oil colling fan on 400ex (0 replies)
- lights not working (2 replies)
- Advise please on a 416 upgrade? (9 replies)
- Some 416 kit questions (2 replies)
- what octane matches 11:1 comp (9 replies)
- Valve Noise (1 replies)
- Does anyone know what the stock pilot jet is on the 400ex (4 replies)
- help, wont start (5 replies)
- hmf or whitebrothers slip on??? (20 replies)
- Wide band 02 sensor (8 replies)
- Installing a Clutch Basket - HELP ASAP! (16 replies)
- stalling (2 replies)
- valve cover gasket (5 replies)
- 350x conversion (1 replies)
- liquid cooled 300ex (5 replies)
- Need Help (3 replies)
- Mod list for badass Woods riding (20 replies)
- new EX motor vs yz400 motor (10 replies)
- 5 angle valve job (11 replies)
- Help jetting FCR 39mm (6 replies)
- Another oil cooler question.... (8 replies)
- exhaust,rims,and graphics (1 replies)
- wicked vibration sound (11 replies)
- Blue printing (8 replies)
- questions about xr gasket (5 replies)
- To Hot (4 replies)
- Octane Booster....ok....not ok?????/ (5 replies)
- what octane in my 416 (16 replies)
- cycle country 250ex manual clutch (9 replies)
- stalling question (4 replies)
- engine noise (2 replies)
- trinity exhaust (2 replies)
- 500EX reliability (10 replies)
- High pressure Radiator cap for 250R? (8 replies)
- Quection about axles.......... (1 replies)
- retorquing (2 replies)
- 440ex and 426ex (62 replies)
- Spark plug thread (0 replies)
- Spark Plug Color Chart (5 replies)
- Recommended oil to use in a 400EX? (19 replies)
- 39FCR givin me problems (14 replies)
- really that big of a difference between 406 and 416? (10 replies)
- wheel spacers? (3 replies)
- Head Gasket? (12 replies)
- air filter oil? (4 replies)
- 250ex problem HELP (3 replies)
- help my kick started doesn't come back up (5 replies)
- 250ex Shift Lever (2 replies)
- Dynatek Ignitions (0 replies)
- exhaust ? (5 replies)
- 250ex pipes (5 replies)
- New 406 is crapping out need help!!!! (5 replies)
- RPM axel with play in the spocket hub (4 replies)
- RPM axel with play in the sprocket hub (0 replies)
- overheating or electrical prob on the predator (11 replies)
- Oil level problems (3 replies)
- boreing 300ex (1 replies)
- new pipe and now smoke (20 replies)
- will an 01 400ex oil tank fit on a 02? (1 replies)
- Exhaust Smells Burnt (1 replies)
- Popping exhuast (0 replies)
- jetting problem i think (1 replies)
- 250ex rev limiter? (11 replies)
- 2001 250EX Drive noise (4 replies)
- Db level of HMF slip on for 400ex (12 replies)
- CRF450R engine (4 replies)
- 300ex 330 bore kit (0 replies)
- Possible bent axel? (6 replies)
- wiesco 440 (9 replies)
- Lonestar Axle (16 replies)
- 300ex starting problems (2 replies)
- Higher compression?? (4 replies)
- Mechanical Tachometer Question (1 replies)
- Got new 406 today!!!!!! (2 replies)
- YZF 426 conversion help (4 replies)
- Lid or No Lid (10 replies)
- will the 400ex Engine work in a 1987 250x (2 replies)
- Help W/ Jetting (4 replies)
- riding w/o airbox lid (8 replies)
- 300ex big bore kit (8 replies)
- will the 400ex Engine (2 replies)
- DMC Alien or Curtis Sparks (6 replies)
- HELP with 250x (41 replies)
- rings or not (3 replies)
- need new radiator (1 replies)
- needle in carb (1 replies)
- Replacement battery (2 replies)
- ahh tight bolts (11 replies)
- 440 kit witch is best? (3 replies)
- whats the best????? 400ex and yfz450's (6 replies)
- HMF slip on? (7 replies)
- blaster question (6 replies)
- PC slip-on and k&n direct clamp on (17 replies)
- Stroker kit (6 replies)
- All you guys with built 400's, dont feel left out in this 450 world. (videos here) (13 replies)
- CR450F Engines (12 replies)
- need pics of instide thumb throttle houseing or explained how to do it ASAP.. (0 replies)
- Smaller fcr accelerator pump (4 replies)
- Popping noise (6 replies)
- Engine Starter (8 replies)
- 82 atc250r tranny gear went (1 replies)
- how much usually is a bore job (6 replies)
- Is my clutch slipping?????? (8 replies)
- Head pipe (1 replies)
- NGK part #'s? (7 replies)
- exhaust painting? (4 replies)
- building a 250R race quad (3 replies)
- 39mm carb on 300ex?? (2 replies)
- rev box (3 replies)
- CR450F Engine on eBay (2 replies)
- jetting ? (3 replies)
- Smoking like a two stroke! (8 replies)
- Electric (8 replies)
- KTM info (5 replies)
- 416ex in the sand (6 replies)
- Adjusting Floats? (4 replies)
- More jetting ?'s (3 replies)
- Time for some engine work (23 replies)
- Snythetic oil change intervals (29 replies)
- Yoshimura pipe ?'s (0 replies)
- Nos? (10 replies)
- axle bearing removal? (2 replies)
- info on TC racing exhaust? (15 replies)
- pipes, how important is the heat transfer? (0 replies)
- RCM exhaust (8 replies)
- HotCam Question (10 replies)
- Does Anyone Know Anything About A 400ex Carb? (18 replies)
- studder in 2nd (4 replies)
- well (0 replies)
- FDO 493 rips!!!!!!!!!!!!! (2 replies)
- chain rubs skid plate (6 replies)
- chain lube (5 replies)
- Built 416EX vs. TRX450R (23 replies)
- supertrapp exhast? (2 replies)
- My new HMF (3 replies)
- Headstuds. (3 replies)
- Curtis Sparks 416 National or TC 416 National? (25 replies)
- Pro Circuit pipe (1 replies)