- PROJECT 400ex cross country racer! Complete (9 replies)
- What should I expect... (6 replies)
- R4 Silencer (0 replies)
- Best axel?! (12 replies)
- Grease fitting, rear axle of a 400ex?? (6 replies)
- overheating (3 replies)
- 446cc Big bore?? (9 replies)
- stock bore JE (17 replies)
- raptor pipe (2 replies)
- PulseCharger gets tested... Dyno included (22 replies)
- 400ex leaking oil (4 replies)
- new engine wont start? help!! (4 replies)
- Whats next on my 400ex? (0 replies)
- hmf full (3 replies)
- pro x rod connecting rod (0 replies)
- g force axle (11 replies)
- 250r engine in a 400ex frame (14 replies)
- 300ex help (1 replies)
- White Brothers Header (6 replies)
- 300ex smokin like a freight train (19 replies)
- Clutch lifter arm not moving correctly (1 replies)
- Best way to get cylinder off? (5 replies)
- 400ex Carb on 300ex (2 replies)
- Big-bore head port/polish (1 replies)
- Help! (2 replies)
- tc exhaust with crf450 (4 replies)
- pipe ?????? (5 replies)
- HMF Pipe Pictures (23 replies)
- 300ex piston (3 replies)
- jetted stock carb, Or Edelbrock for 440ex (1 replies)
- exhaust horespower (3 replies)
- My piston #2 (12 replies)
- hmf header and other slip on?? (6 replies)
- Hard to shift; shift fork? (7 replies)
- Big Bore Kit? (1 replies)
- lte exhaust (1 replies)
- curtis sparks x4 (6 replies)
- spark plugs (6 replies)
- high comp piston (2 replies)
- Parts List (0 replies)
- How much for 02 CRF 450 motor? (5 replies)
- What Carb for 426 kit (32 replies)
- best 400ex clutch kit (0 replies)
- 300ex jetting (3 replies)
- Clutch problem 300 Ex (3 replies)
- Question about changing exhaust and rejetting (1 replies)
- Where can i get the cheapest 330-350 kit? (12 replies)
- FMF sst for blaster (1 replies)
- I have a 300ex Outerwears pre-filter for cheap on Ebay (0 replies)
- YZ400 motor mounts (15 replies)
- Blaster Mods (3 replies)
- revboxes. any good? (4 replies)
- 350x motor vs 330ex (20 replies)
- 400ex axle replacement problem (1 replies)
- reassembly problem (9 replies)
- air scoops (8 replies)
- Porting stock ex header?? (5 replies)
- Gear Problem (4 replies)
- jetting 500 stroker (9 replies)
- 350x motor (6 replies)
- homemade outerwear? (4 replies)
- sparks pipe problem (15 replies)
- 300ex pulled sleeve down into the engine! (13 replies)
- Best way to get used to runnin a twist? (6 replies)
- 450r axle ? (1 replies)
- clutch basket (2 replies)
- durablue 250r axle on 400ex (1 replies)
- timing chain (3 replies)
- Best pump gas piston/cam setup question (8 replies)
- Best carb for my set-up? (10 replies)
- airbox lid modifications???? (11 replies)
- valve adjustment. (1 replies)
- slip on or header & silencer (6 replies)
- old time supertrapp (2 replies)
- What to replace on top end rebuild? (8 replies)
- O Ring between sleeve and case... (7 replies)
- 250R Carb Help! (5 replies)
- sprocket (6 replies)
- head gasket (2 replies)
- FMF pipe (1 replies)
- CDI or Sparks key (27 replies)
- Carb trouble??? (1 replies)
- 400EX Big Gun "Race" Series End Cap (7 replies)
- Replacing timing chain? (3 replies)
- K&N Powerlid (3 replies)
- converting to twist throttle.. (4 replies)
- propper jetting.. (6 replies)
- eddlebrock quick silver carbs.. (6 replies)
- Heavy Duty head studs or not...... (4 replies)
- What pipe on built 300EX?? (19 replies)
- Piston and Cam upgrade (1 replies)
- 400ex Heavy Duty Head Studs! (12 replies)
- WB R4 exhaust any good? (11 replies)
- Question about Alba LTZ 470 Stroker kit (3 replies)
- 300 ex rockers (6 replies)
- New TC Exhaust !!!! (35 replies)
- Jetting (1 replies)
- head material (1 replies)
- 350x Pipes (5 replies)
- Race Gas (7 replies)
- How Does the 450R compare to the 400EX ???? (14 replies)
- C. Sparks timing key (15 replies)
- Which clutch set-up should I get??? (4 replies)
- front sprocket (2 replies)
- battery issue (1 replies)
- Oil in flywheel cover (11 replies)
- Dyna FS or Ricks Hot Shot (16 replies)
- pipes?? (3 replies)
- Stage 1 Hot Cam (7 replies)
- 250x valves (3 replies)
- Valve adjustment (1 replies)
- bore kits (1 replies)
- 400ex trouble (2 replies)
- Gas poring from over flow tube! (11 replies)
- Twist throttle on edlebrock carb (1 replies)
- rpm limit (4 replies)
- Banshee problem (27 replies)
- 400Ex clutch EXPLODED......... (7 replies)
- is the battery shot? (10 replies)
- high comp pistons (6 replies)
- stock 400ex pipe (2 replies)
- Port and Polish (3 replies)
- 400 ex reverse (9 replies)
- yamaha raptor radiator smoking (4 replies)
- 450r carb on 400ex (1 replies)
- 400EX Backfireing (17 replies)
- oil pump (0 replies)
- Moving the power band higher... (10 replies)
- trouble, please help (3 replies)
- chains (6 replies)
- exhaust horespower (1 replies)
- nmotion (0 replies)
- 416ex problem! (13 replies)
- what coolant should i use? (8 replies)
- clutch question (2 replies)
- 400ex Matching Exhaust Port to Header? (3 replies)
- 416 gearing (6 replies)
- E2 (0 replies)
- Hmf (1 replies)
- 400ex intake boot on 300ex (3 replies)
- Help Quick!! (8 replies)
- 440 and heat (6 replies)
- ??????? (4 replies)
- Edelbrock Carb (3 replies)
- what jet sizes? (7 replies)
- exaust systems for 400ex.. (15 replies)
- Shorter kickstart for a CRF????? (11 replies)
- bigger bolts on a 440 (1 replies)
- is a 400ex engine rebuild that hard??? (6 replies)
- Honda Pilot (3 replies)
- 440ex top speed (8 replies)
- 05 Z400 cam (14 replies)
- Hotcams issues resolved? (7 replies)
- JE or Wiscoe? (18 replies)
- Help! Did I blow up my engine? (11 replies)
- friend needs some help with his honda (4 replies)
- rearend problems still (19 replies)
- edelbrock 450r carb (0 replies)
- fcr41 help (3 replies)
- tightening chain help!! (6 replies)
- big bore kit (1 replies)
- Blaster, No Start Condition (9 replies)
- Spring and Plunger under cam (3 replies)
- No Silencer? (26 replies)
- chain adjustment (3 replies)
- jeting???? (1 replies)
- 440 11:1...... Now what??? (5 replies)
- new 440 not running right (44 replies)
- Hot cam help (4 replies)
- Raptor big bore kit (24 replies)
- head gasket (2 replies)
- Gears slipping... (3 replies)
- UM radiator grill and scoops........SUCK (3 replies)
- Tach wanted for my 400ex (1 replies)
- noise (1 replies)
- vent hose (2 replies)
- gas coming coming from carb overflow... (17 replies)
- 150m, 40p, slip on w/ lid , this ok? (1 replies)
- honda 350 fourtrax 1993 (6 replies)
- 350X and 300ex question (7 replies)
- clutch problem (0 replies)
- engine squeal at idle (10 replies)
- 12:1 + on 300ex (4 replies)
- Pulse Charger Review (20 replies)
- aluminum airbox (1 replies)
- 460 Stroker final report (145 replies)
- Connecting Rod Issues (6 replies)
- chain tensioner & Chain (8 replies)
- CRF 250---300EX conversions (2 replies)
- Seizure (2 replies)
- Motor rebulid (0 replies)
- To Stroke Or Not To Stroke (2 replies)
- full exhaust (8 replies)
- Decision between YZF450 & 450R (13 replies)
- gas tanks (2 replies)
- Which is more powerful? (6 replies)
- max rpm (3 replies)
- Raptors Are Slow Garbage (7 replies)
- please help (0 replies)
- 440 kit question (18 replies)
- Idle Problems (2 replies)
- Got my new R-4!! (9 replies)
- Need an exhaust; House crf450r (10 replies)
- is kicking worth it (19 replies)
- connecting kill switch (2 replies)
- kill switch... (2 replies)
- pro design pro flow (5 replies)
- Well....spark plug issues (5 replies)
- New clutch cable with HMF?? (3 replies)
- 350x air tintake tube on 300ex (11 replies)
- Need opinions regarding AIR Kit (8 replies)
- major ticking valves! (3 replies)
- Magura hydro clutch... (9 replies)
- Choke question (5 replies)
- is the white bros. E2 qiet with te baffel (9 replies)
- 1007 wolverine (0 replies)
- 400ex and hot rod install need advice (2 replies)
- thank guys (3 replies)
- pics of 300EX w/ wb-HMF combo?? (0 replies)
- Wierd 400ex?? (29 replies)
- Home made 400ex engine stand (8 replies)
- starter under 10 pounds for university (8 replies)
- This can't be right, What am I missing? (12 replies)
- 400EX ignition (3 replies)
- ha another jetting question (2 replies)
- Timing chain (6 replies)
- how to jet for timing advance? (2 replies)
- Oversized valves? (1 replies)
- 440 carb on 400 or 416 (1 replies)
- im rebuilding my 300ex tomarow..Help needed (2 replies)
- timing chain (1 replies)
- Running alcohol /methanol any experiance? (7 replies)
- super cooler (1 replies)
- 450 or 463 kit? (2 replies)
- sprockets (10 replies)
- hydraulic clutches (1 replies)
- how do you tightin the timming chain (1 replies)
- 300EX Front Sprocket Please Help!!! (7 replies)
- Head Gasket (2 replies)
- Synthetic oil/Engine rebuild (12 replies)
- 265r Powervalve? (8 replies)
- What jet sizes (2 replies)
- Check this out (2 replies)
- UNI or K&N or pro design pro flow kit (3 replies)
- CDI Problem (0 replies)
- 416ex with stage 2 hotcam problems (11 replies)
- Cracked Case (5 replies)
- Dynatek CDI (2 replies)
- fst oil cooler vs. jegs (4 replies)
- CT Racing 440 kit (1 replies)