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- 450 engine mounts (0 replies)
- 400ex (0 replies)
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- $150 to spend (7 replies)
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- exhaust (2 replies)
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- big gun? (3 replies)
- 250r jetting (2 replies)
- Stock 400ex hot cam (11 replies)
- What Jet size for my 400? (2 replies)
- Cam chain removal (21 replies)
- 400EX fouling plugs..... (8 replies)
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- white brothers rev box (9 replies)
- valves (2 replies)
- clutch question (5 replies)
- carburetor cleaning (6 replies)
- hmf complete for 400ex (16 replies)
- Mobil 1 in a belt drive quad? (4 replies)
- I don't want clutch slippage but.... (8 replies)
- head pipe (15 replies)
- stage 1 or 2 (6 replies)
- 300EX, will not start in cold weather!!! (8 replies)
- Too Lean? (3 replies)
- Question about Shifting (2 replies)
- clutch (1 replies)
- MX Engine into EX (12 replies)
- 400ex Troubles (5 replies)
- clutch - magura, how to bleed? (15 replies)
- What kind of clutch is in the 400ex (3 replies)
- port and flow head ????? (7 replies)
- 250ex Exhaust & Backfiring (1 replies)
- best performance mods VS pump gas (21 replies)
- Britt did a good job. (3 replies)
- GasGas 300HP Vs 250R (2 replies)
- anyone use the x-4 pipe on a 400ex? (0 replies)
- 03 400ex start issue (14 replies)
- would this not be smart? (13 replies)
- Stop The Backfiring!!! (18 replies)
- needle screws (2 replies)
- stroker or big bore kit (13 replies)
- Sprockets (1 replies)
- oversized head studs? (1 replies)
- moving key and lights (6 replies)
- 440?? (9 replies)
- powerband (5 replies)
- dynojet sizing (1 replies)
- Jets? (2 replies)
- d&d 440 kit (0 replies)
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- Is it worth it? (2 replies)
- CR250 motor in a 300ex frame.. (31 replies)
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- little starting problem (10 replies)
- yoshimura jet (2 replies)
- Aftermarket Cam chain for 400ex? (7 replies)
- adjustable pipe (2 replies)
- race gas? (8 replies)
- HP difference between 11:1 and 10:8:1 compression? (28 replies)
- ? on my new hotcam (7 replies)
- cylinder head studs.how do i (12 replies)
- 400EX Stock Carb Size? (7 replies)
- exhaust question (3 replies)
- z400 vs 400ex (9 replies)
- more exhuast area problems(300ex) (9 replies)
- sproket n tires (5 replies)
- CDI boxes (39 replies)
- Gearing a 465 Stroker (8 replies)
- 250r gearing questions help fast please.. (0 replies)
- Serious jetting question Please Read (9 replies)
- Buying 300EX - mods questions (20 replies)
- engine builders (0 replies)
- flywheel puller????? (11 replies)
- low altitude jetting (2 replies)
- can i use the same chain w/14 and 39 sprocket? (5 replies)
- Turning over engine, clockwise or counter? (16 replies)
- HMF Exhaust? (12 replies)
- cant get motor in (2 replies)
- prodjest quads (7 replies)
- Jetting for Sparks X-6 on 400 (3 replies)
- help have a problem with 250r (1 replies)
- 300ex exhaust (12 replies)
- 400 ex jet (3 replies)
- 300ex Racers Please Read! (6 replies)
- 250EXC motor in a 250X (1 replies)
- Keihin 39mm Fcr Carb???? (15 replies)
- very quick question (21 replies)
- front sprocket question (6 replies)
- can you run pump gas on an 11:1 high compression piston (16 replies)
- wont fire help!! (3 replies)
- 463 kits??? (3 replies)
- what do you think? (6 replies)
- tc racing (3 replies)
- front sprokets??? (2 replies)
- K&S Gaskets (1 replies)
- 250r engine in 400ex frame? (16 replies)
- Dune videos (2 replies)
- 300ex jetting? (4 replies)
- help with losing the chian on raptor (1 replies)
- Deposit remover OK for quads? (10 replies)
- The sparks bored ex carb...what peformance increase to expect? (3 replies)
- fog lights (26 replies)
- what pipe sounds good and gives good hp for 300 ex (10 replies)
- all raptor owners (10 replies)
- My stupid friend-spark plug (6 replies)
- Cdi Units ?????? (1 replies)
- need help with Pilot jet!!! (5 replies)
- Installing pilot jet ?? (12 replies)
- Should I.... (8 replies)
- popping on deceleration solved (for me anyway) (2 replies)
- Gecko paddles (13 replies)
- white brothers e series (1 replies)
- CR250 owners help! (4 replies)
- 89 mm head gasket back order (2 replies)
- which is the deal? (4 replies)
- bore kits (0 replies)
- Engine mods for my 250ex (19 replies)
- gas pouring out the over flow... 01 400ex (9 replies)
- Getting a sprocket hub off. (0 replies)
- I ordered it (7 replies)
- 400ex idle problem (6 replies)
- Strange Noise 400ex Please help. (0 replies)
- 250x bottem end and 300ex top end? (6 replies)
- engine work in n.carolina for a z400 (2 replies)
- winter projects (46 replies)
- 330 pump ghas kit for the 300ex how much dose it cost (2 replies)
- cleaning and reoiling K&N filter? (4 replies)
- e series-jet kit-k&n filter any thing I need to know (16 replies)
- Cam 2 (11 replies)
- do you own a CRF450? (2 replies)
- 42 mikuni carb fit 400ex??????? (1 replies)
- Tusk.....? (3 replies)
- Adjusting Timing Chain (8 replies)
- 350x air tube on 300ex (2 replies)
- 406ex hp question (5 replies)
- Bobbling Lectron (0 replies)
- gasket??? (3 replies)
- To Cam or not to Cam..... (14 replies)
- carb problems (9 replies)
- New 406ex (1 replies)
- Plug Fouling (19 replies)
- Feedback for a pipe (18 replies)
- FCR and Single Cable vs Push Pull (2 replies)
- Winter projects? (11 replies)
- exhaust? (1 replies)
- 250R motor questions (13 replies)
- Loud shifting and notchy shifting? (12 replies)
- choke mod is it worth it can you feel (13 replies)
- Hetrick 416 kit (17 replies)
- K/N Air Filter Question (10 replies)
- rincon (2 replies)
- new to 400ex please help (2 replies)
- 440 cam questions (1 replies)
- air box questions (9 replies)
- carbs (20 replies)
- WB E-Series S-Bend Question! (28 replies)
- throttle for the ex (12 replies)
- jets (4 replies)
- Changing Stock Jetting (2 replies)
- MOOSE BY BUB exhaust (1 replies)
- ESR Billet Cylinder (0 replies)
- exhaust (2 replies)
- 400ex hmf slipon ers (29 replies)
- New 250EX owner with ???'s (17 replies)
- 416 vs 440 ? (22 replies)
- 440ex Need Advive (7 replies)
- interchangable parts (8 replies)
- 38mm PE Keihin carb (2 replies)
- Are all Carbs the same? (1 replies)
- New jetting w/ slip-on? (5 replies)
- flywheel lightening (6 replies)
- Splash N Dirt Sniper pipe, anyone have any info?? (5 replies)
- best exhaust system (3 replies)
- 250r questions (2 replies)
- Occasional clicking/ticking noise (3 replies)
- which cam for my 416 kit hot cam stage 1 or 2 or web cam? (26 replies)
- Oil filter cover help (3 replies)
- Curtis Sparks X-6 pipe (17 replies)
- problem... (14 replies)
- Sparks head pipe, Jet coating??? (5 replies)
- powroll 415 (10 replies)
- 300ex jetting??? (3 replies)
- 450r in 400ex frame (1 replies)
- Please Read!! (3 replies)
- Mods for 400ex (3 replies)
- please help me out,i need to no quickly (1 replies)
- Full Race Cam or Drop In Cam? (12 replies)
- Swing-Arm Pivot Bolt Nut Size? (11 replies)
- what kinda pipe for a 400 (5 replies)
- running staright headers on 400ex! bad or good? no silencer (19 replies)
- Problem with bottom end jetting (9 replies)
- Best place to bore stock carb?? (23 replies)
- 42 pilot question (3 replies)
- help curtis sparks cam????? (1 replies)
- hotcams 1-2 (6 replies)
- few questions on 440 kit (9 replies)
- jetting?or wat (4 replies)
- Bearing carriers (6 replies)
- different end caps for e series ? (2 replies)
- How to tips for boring & resleeving your 400ex (14 replies)
- e-series disk question (16 replies)
- problem durablue Axle (4 replies)
- need help (3 replies)
- 400ex cooling idea (18 replies)
- Big bore kits (2 replies)
- 1 layer head gasket?? (64 replies)
- Loud Tapping Noise On Cold Start (20 replies)
- In need help finding a Vortec CDI (10 replies)
- 2 stroke gurus.... (8 replies)
- 416 with 16 Tooth (8 replies)