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- How to remove a sheared header stud (5 replies)
- 250r Cdi (3 replies)
- Piped 400ex Vs. stock Z (35 replies)
- Jetting Question??? (6 replies)
- head gasket AGAIN (im about to kick this thing...) (8 replies)
- pipe for 300? (54 replies)
- 400ex Floats? (3 replies)
- Timing advance humming. (1 replies)
- XC gearing? (8 replies)
- 300ex Won't Start (5 replies)
- CDI / Rev Boxes for the 400EX (9 replies)
- what is a good wey to shift win i am racing (10 replies)
- Need a little jetting help.... (3 replies)
- 18in (14 replies)
- New pics of lte dual exhaust for 400ex. (7 replies)
- gettin a HMF slipon (9 replies)
- Head Gasket (5 replies)
- drain plug (8 replies)
- TC 450 kit (3 replies)
- 300ex-350x conversion... (7 replies)
- What size paddle? (2 replies)
- Just installed... (3 replies)
- engine breakin (2 replies)
- Mickey Dunlap ?????? (6 replies)
- got it (2 replies)
- Spline wear on front sprocket shaft (2 replies)
- cometic gaskets (1 replies)
- 450r vibes!!!!!! (0 replies)
- ct racing (3 replies)
- Rad bearing carrier (0 replies)
- adjustable cam chain gear ??????????????? (0 replies)
- All balls or Pivot Works? (9 replies)
- Starting in gear (3 replies)
- dominator axle (5 replies)
- My engine is KNocking!! (14 replies)
- timing question (6 replies)
- my 300ex transmission (2 replies)
- 440, 426 boring and sleeving questions (5 replies)
- sprokets???? (4 replies)
- 250r powervalve in a 400EX?? (3 replies)
- Needel jet? (1 replies)
- Tc exhaust (2 replies)
- Oil cooled 300ex (22 replies)
- Chail oil (6 replies)
- head pipe/ bill's pipes (2 replies)
- BEST Valve springs (6 replies)
- 300EX gearing question (1 replies)
- Dg exhaust (0 replies)
- Tether switch question for 400ex and blaster (2 replies)
- Axel carriers ? (1 replies)
- Race Gas !!! (12 replies)
- stock gearing??? (4 replies)
- 416 or 440 for mx racing (67 replies)
- Big Gun or White Bros.? (1 replies)
- Frustration!!!!!!!!!!!!!!!!!!!!!! (6 replies)
- Whats the best pipe? (2 replies)
- 426 fcr jetting? (5 replies)
- Yet another jetting question (1 replies)
- 8 Plate Clutch Issue - HELP! (18 replies)
- Just ordered HMF, good choice? (8 replies)
- how do i put this tether kill switch on my 400ex? (3 replies)
- klotz gas???? (2 replies)
- How do i put this tether kill switch on my 400ex? (1 replies)
- Cracked Intake boot (6 replies)
- which piston is best 4 racing mx?? (3 replies)
- 250r vrs. 400ex (19 replies)
- Who sell those things??? (4 replies)
- 400ex start up (4 replies)
- 400ex hp? (1 replies)
- 400ex motor swap...besides CRF450... (4 replies)
- Big Bore 300ex (5 replies)
- Failed Dynatek cdi (25 replies)
- 300ex Exhaust needed (1 replies)
- stage 1 stage 2 (9 replies)
- 400ex backfire, missing???? HELP!! (8 replies)
- 440ex compression (3 replies)
- Better Battery??? (5 replies)
- YFZ jetting (0 replies)
- White Bros e exhaust (0 replies)
- New to me 400ex is leaking fuel (12 replies)
- cam and piston? (3 replies)
- Tether install, Polaris (5 replies)
- 300ex backfires (10 replies)
- chain tension? (1 replies)
- Dynojets (3 replies)
- 300ex problems (5 replies)
- jetting suggestions 300ex w/mods (2 replies)
- honda axles (1 replies)
- ticking (5 replies)
- anybody tried the DNYA CDI for 400EX? (0 replies)
- help jetting 400carb on 250x! (6 replies)
- Need help jetting (7 replies)
- what are the best tires? (19 replies)
- 300ex FMF on 400ex? (4 replies)
- 300ex ignition wire (1 replies)
- Where can I find a good axle (1 replies)
- 416, cam, pipe, filer, no lid... jetting. (13 replies)
- jetting (10 replies)
- wont start clicking noise (7 replies)
- Where could you get CRF450 motors? (6 replies)
- Building a 440 (4 replies)
- ?? (2 replies)
- twist throttle? (14 replies)
- 250x head problems (3 replies)
- 400ex trade in (12 replies)
- Motor upgrade? (4 replies)
- when climbing it smokes (0 replies)
- curtis sparks-vs-ct racing exhaust (0 replies)
- degree key/timing key??? (7 replies)
- 14 tooth sprocket 300ex?? (1 replies)
- big gun exhaust questions (1 replies)
- Approx. HP of my ex (10 replies)
- Best Engine Builder (33 replies)
- Clutch Re-installation question (19 replies)
- curtis sparks (4 replies)
- carb mod for crf450?? (7 replies)
- 400ex big bore! (3 replies)
- 400EX cam chain question - noisy after rebuild (12 replies)
- e-brake block off? (5 replies)
- Oil (14 replies)
- flywheel (11 replies)
- TC 426MXer Hp's? (13 replies)
- Sticky Throttle Cured! (1 replies)
- 416 kit??? (5 replies)
- big bore vibes (2 replies)
- Compression (4 replies)
- more power (4 replies)
- jetting (0 replies)
- curtis sparks (1 replies)
- Why do the fuses keep blowing? (20 replies)
- 400EX motor problems (12 replies)
- adjustable ignition vs normal rev box (7 replies)
- 416 help quick please!!! (5 replies)
- problem with repacking YOSHI (1 replies)
- rear sprocket replacement (2 replies)
- Post pics of your Shorty Pipes (30 replies)
- Axle bent or not? (4 replies)
- 400ex Cam Chain Question?? (2 replies)
- more power? (11 replies)
- 400ex Hrc Cam (3 replies)
- Another Durablue eats it (23 replies)
- Changing Jets??? (11 replies)
- overflow always leaking (5 replies)
- OHH $H!T messed up bad (10 replies)
- Keihein FCR37mm? (3 replies)
- results of hotcam? (2 replies)
- whose running the TC 924? (5 replies)
- oil leak...i cant figure it out (3 replies)
- race gas? (10 replies)
- 300ex problem (4 replies)
- Big Gun Quiet Series any good? (2 replies)
- head bolts (14 replies)
- 250EX Manual Clutch (3 replies)
- raceing (3 replies)
- 300ex killswitch (2 replies)
- TRX300ex power infusion! (1 replies)
- where to buy motor (0 replies)
- rear brake caliper question (1 replies)
- Wiseco vs. JE vs. Ross (18 replies)
- 350x questions (2 replies)
- porting (4 replies)
- Little Smoking (5 replies)
- cometic gaskets? (17 replies)
- adjusting valves (4 replies)
- rear axle bent (1 replies)
- exhaust (20 replies)
- Cheapest place to get WB E-Series W/free shipping (6 replies)
- Traded in my 250ex, kind of miss it. (4 replies)
- Lectron Carbs- Metering Rods? (4 replies)
- R4 White Brothers (7 replies)
- Quad specs (1 replies)
- I need help! Anyone that's really good with carbs please lend an idea! (6 replies)
- crf450 motor ? (1 replies)
- removing engine help (5 replies)
- 400ex motor in 300ex frame?? (5 replies)
- motor upgrade (5 replies)
- problem (4 replies)
- HMF full exhaust (20 replies)
- 300Ex Question ( Happy Day! ) (1 replies)
- which is quieter??? (2 replies)
- 300ex pipe sound (5 replies)
- What exhaust do I have? (15 replies)
- 300ex vs. warrior (8 replies)
- comparison (2 replies)
- 4 stroke tech advice (2 replies)
- rev box (11 replies)
- 300ex (2 replies)
- 400ex Auxillary Oil Cooler Installation (4 replies)
- Wiseco 440 Big Bore Jetting (12 replies)
- can i put a 300ex jug on my 250x (3 replies)
- Needle??? (2 replies)
- Dial-a-jet (6 replies)
- question about z400 jetting (3 replies)
- Little cheap mods do make a difference (10 replies)
- piston (3 replies)
- burning oil (2 replies)
- FCR worth the switch. (2 replies)
- outerwears? (1 replies)
- tick tick noise (1 replies)
- New Here... 400ex won't start... couple ?? (20 replies)
- 68.4 mph good, bad, or average (1 replies)
- stock axle to lsr axle (12 replies)
- bar clamp ? (2 replies)
- getting it to start (5 replies)
- Jetting prob (3 replies)
- CT Racing Slip-on problem (4 replies)
- 400ex problems (12 replies)
- edelbrock carb 440 IS IT WORTH IT (7 replies)
- 440 kits (13 replies)
- Why would one replace spark-plug, gaskets, pistons, orings, exhaust on a 03' 400ex?? (4 replies)
- Pistons (6 replies)
- Gasket ? (12 replies)
- Cam for stroker (2 replies)
- k&n filter problems (21 replies)
- carb help PLEASE (1 replies)
- FCR trouble again (8 replies)
- rejet (4 replies)
- Installing new clutch (6 replies)
- 400ex, how to start in gear? (15 replies)
- milling the head on a 400ex? (13 replies)
- Chain help (5 replies)
- Boring out a stock 400ex carb (2 replies)
- Mikuni tm34mm carb on 300ex! (0 replies)
- 300ex exhaust (17 replies)
- big bore kit for a 300ex (8 replies)
- carb help 400ex (1 replies)
- main jet (3 replies)
- 400ex (3 replies)
- This isn't supposed to happen!!!! (7 replies)
- Gear shifter spindle broken...ouch! (9 replies)
- Sparks 450r pipe (1 replies)
- e-series question (6 replies)
- Clutch question... (4 replies)
- welding (9 replies)
- . (4 replies)
- 300ex 250x rev box cdi (3 replies)
- Plz help! Posting pics in a thread??? How?? (1 replies)
- new 400ex..black plug (6 replies)
- Web Cams install? (3 replies)
- Ball joints (1 replies)
- yz water spigot (1 replies)
- MX exhaust. (2 replies)
- rear axle bearings 300ex (5 replies)
- ? about high comp. piston install (13 replies)
- Who does the best motor work on a YFZ ? (7 replies)
- optima quad style battery? (2 replies)
- DB stock exhaust without baffle/spark arrestor (2 replies)
- serious power from a 400ex...comments (36 replies)
- better exhaust????? (16 replies)
- NEW Pro Circuit T-4 quier core (2 replies)
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