- 330 kit (10 replies)
- Help gasket name (2 replies)
- so my quad is freaking messed up (9 replies)
- Oil in intake manifold? (5 replies)
- Stock 400 beating modified 400 (17 replies)
- Installing Valve Guides (3 replies)
- LSR axle (2 replies)
- can jetting cause smoke? (8 replies)
- Getting the most out of a 416? What do you think? (16 replies)
- New hotacam stage 2, is it a big joke?! (4 replies)
- question about 400ex carb (0 replies)
- 400ex starter sticking .......?????? (2 replies)
- hard to start 400 (3 replies)
- Drag sprockets... (10 replies)
- jetting for piped 400ex (10 replies)
- Problems with 300ex tranny (4 replies)
- can i run a cam (3 replies)
- my 300ex is leaking oil at the cover where the filter is what is the problem ? (2 replies)
- 400ex racing? (5 replies)
- Happy Birthday cals400ex! (12 replies)
- help with JETS (1 replies)
- smoking 400ex (4 replies)
- Am I going to need a bigger radiator? (3 replies)
- need more power (4 replies)
- Axel Bearings (2 replies)
- Reducing Throttle pull (4 replies)
- 96 300ex with 86 350x motor (3 replies)
- ticking in 400ex? (3 replies)
- custom throttle cables (3 replies)
- pilot question (2 replies)
- New Valve Installation? (10 replies)
- Removing Engine Balancer (24 replies)
- 400EX Hotcam Install (17 replies)
- 400EX Slip-On Exhaust (5 replies)
- Overheating Problem (8 replies)
- C-12 vs. Pro purple (11 replies)
- Octane Booster (12 replies)
- JE piston-spirolocks (3 replies)
- modified 250ex speed (7 replies)
- is it easy to jet carb (3 replies)
- fuel (5 replies)
- wb e-series slip-on or hmf slip-on ? (5 replies)
- Which Piston?? (8 replies)
- 400ex pipe and header on a 300ex? (2 replies)
- Do i need exhaust? (2 replies)
- Chain Breaking (3 replies)
- 400ex - more power on a budget (9 replies)
- does a 300ex carb have an accel pump? (1 replies)
- compression ratio (5 replies)
- substitue K&N (1 replies)
- white brothers R4 (6 replies)
- silencer ? (0 replies)
- hmf new end cap (11 replies)
- please don't flame (15 replies)
- about how much (15 replies)
- need piston help! (0 replies)
- 450R carb 440ex. Can't find help (9 replies)
- rocker arms please help (10 replies)
- 416, 426, 440?? (9 replies)
- Jetting my 400Ex (1 replies)
- 400 Choke Removal (4 replies)
- HMF Jetting (4 replies)
- Lights??? (4 replies)
- Little 400ex Problem. (8 replies)
- what sprockets do u run with ur 20 inchers (2 replies)
- 11:1 Piston (4 replies)
- powerplant (3 replies)
- Need some help with rear hub removal (5 replies)
- Using Oil (10 replies)
- 400 rebuild am i forgeting anything (10 replies)
- what do u think of this turbo (24 replies)
- Porting (3 replies)
- Timing question (5 replies)
- 400ex chain setup (3 replies)
- HRC kit on bored over motor? (1 replies)
- 450R bottoming. (18 replies)
- Boondockers!!! (2 replies)
- 300ex 330 kit?? (4 replies)
- check valve or accel pump??? (15 replies)
- clutch cable melting onto HMF headpipe (10 replies)
- 400ex. exauste (1 replies)
- Need Help fast (1 replies)
- What do you use to clean your K&N (19 replies)
- jetted carb..........now won't start. help! (7 replies)
- 250X head and cylinders same as 300EX? (9 replies)
- Tusk Clutches any good (1 replies)
- anyone have this ??? (16 replies)
- Magnum Race Cam (2 replies)
- bent axle (3 replies)
- ebc clutchs any good? (6 replies)
- RAD Bearing Carrier..Tapered Bearing?? (8 replies)
- Honda's quads... (7 replies)
- Im looking for some answers and opinions(engine build up) (1 replies)
- Should I Switch my Exhaust??? (7 replies)
- cam (3 replies)
- 400ex Dyno Jet Kit?? (6 replies)
- Quick question concerning high comp. pistons (4 replies)
- Need some advice... (1 replies)
- main Jet size........... (3 replies)
- wb cam (0 replies)
- main jet styles for ex (17 replies)
- Terry Cable Twist/Thumb Throttle (5 replies)
- 400EX trouble shooting engie problem. (25 replies)
- What is stock 400EX carb? (6 replies)
- HMF headpipe fitment sucks! backfiring (16 replies)
- Velocity Stack (15 replies)
- 300ex valve cover ? (5 replies)
- should i get new headers (6 replies)
- Idle Adjustment Help Needed... (5 replies)
- Big gun vortex quiet core 1st try (0 replies)
- 3-wheeler world (4 replies)
- 300 jetting question (2 replies)
- 250f muffler on a 300ex (6 replies)
- My Tranny wont shift higher than 2nd (7 replies)
- cdi box for 300ex (1 replies)
- Ever pipe a 250ex? (4 replies)
- replacing cam (3 replies)
- lonestar axle ? (1 replies)
- power w/ these enexpensive mods? (11 replies)
- Choose My Jets (Please!) (18 replies)
- JE or Wiseco piston? (23 replies)
- Question about brand of piston (11 replies)
- Clutch Disassembly help (4 replies)
- sprocket hub completely striped!!! (8 replies)
- Spark plug guru's, is my jetting right? (19 replies)
- shifter shaft? (8 replies)
- airbox lid on or off (23 replies)
- Leaking gas problem (4 replies)
- pipe help (2 replies)
- What next? (7 replies)
- what did i do? (5 replies)
- Drop in cams for a STOCK motor? (4 replies)
- 400ex Jetting question (7 replies)
- Uncontrollable high idle (10 replies)
- Question about Bearing carriers w/ grease jerk? (11 replies)
- Engine cutting out. (6 replies)
- 300ex sputor (3 replies)
- help with my 350x motor (7 replies)
- tearing apart my engine(450r) what should I do? (6 replies)
- How does set up sound?>??>> (1 replies)
- Who sells crankshaft rebuild jigs/fixtures for 250r's (1 replies)
- 440+stock exhaust (5 replies)
- anyone ever do this ??? (3 replies)
- 05 FCR bog problem (3 replies)
- FCR 39 Carb (2 replies)
- 300ex/250x carb (4 replies)
- chain tightening (5 replies)
- BEST Sprocket setup for Drag? (9 replies)
- degree key (3 replies)
- Serious Engine Problem..HELP! (4 replies)
- bore kit (3 replies)
- Need help jetting ! (1 replies)
- 400 EX electrical gremlins? (1 replies)
- Z400 Carb on 300ex (5 replies)
- 400ex sprocket size? (1 replies)
- cheapest HMF???? (7 replies)
- 300ex dies about 3/4 throttle (2 replies)
- Oil coming through crankcase vent (6 replies)
- does any one have sidewinder chain (1 replies)
- 440ex wont start!!! please help (2 replies)
- Sparks X-4 packing (12 replies)
- what sprocket combo do u run (4 replies)
- new campain (5 replies)
- head cover torqe specs (8 replies)
- stock airbox lid? (1 replies)
- 300EX bore (7 replies)
- how many horespower does a ds 650 have (5 replies)
- have u heard of this kind of cluth (2 replies)
- Factory YZF450 headers? (3 replies)
- 300EX Gearing (0 replies)
- making the hmf sport temporarily quiter? (0 replies)
- Have you seen this type of exhaust? (48 replies)
- 300ex sprocket help? (6 replies)
- which pipe is better (17 replies)
- need help with jetting (2 replies)
- 300ex and 400ex selinoid? (1 replies)
- LOUD exhaust......PLEASE help (11 replies)
- JB or Gibson (4 replies)
- Loud knock at idle (1 replies)
- bogging (1 replies)
- air/fuel mixture and o2 sensor (8 replies)
- help finding a thread (2 replies)
- HMF Slip-on (3 replies)
- Piston size? to get a 330 (5 replies)
- Checking compression... (3 replies)
- 11:1 Wiesco & AllAround WebCam (4 replies)
- cam ? (3 replies)
- DRD slip on (1 replies)
- 11:1 piston (0 replies)
- 13.5:1 JE piston (10 replies)
- 11:1 piston for 300 (10 replies)
- modded 300ex power (1 replies)
- problems adjusting idle on my 300ex (4 replies)
- cam (0 replies)
- Sheared Key? (26 replies)
- steps to take off choke (2 replies)
- 450r jets in a 400ex (0 replies)
- question for the jetting experts (9 replies)
- one way bearing (5 replies)
- Replace 400ex head stud with bolt (7 replies)
- Best Headpipe for ESeRIES? (10 replies)
- 89' 250r quite running (4 replies)
- sputtering at high rpm's (11 replies)
- Curtis Sparks Ignition Advance Key (1 replies)
- how to adjust my timing (1 replies)
- need some help (2 replies)
- Handlebars (8 replies)
- NEED HELP BIG PROBLEM!!!!400ex chain (10 replies)
- Yfz 450 cam ? (5 replies)
- Help w/300ex w/400ex carb (4 replies)
- cam part# question (19 replies)
- 400 problems (2 replies)
- Snapped Rod (pics) (36 replies)
- jetting (0 replies)
- 300ex not running well (13 replies)
- thanks (3 replies)
- Burnin Oil (4 replies)
- Port/Polish (34 replies)
- YFZ Carb on 400ex (0 replies)
- Hardened Rockers? (4 replies)
- What Main Do you run on your HMF SLIP (2 replies)
- HELP w/300ex rocker arm removal? (4 replies)
- how do u check jetting properly? (6 replies)
- New DG BULLET exguast anyone got it??? (27 replies)
- 300ex mod (7 replies)
- 300ex cutting out (2 replies)
- Big gun vortex quiet core (1 replies)
- Axle (1 replies)
- 416ex Rod SNAP!!!?? something went CLANK CLANK (51 replies)
- Blown Head Gasket (18 replies)
- best place to get a tc slip on (3 replies)
- Stock 300EX and 400EX Bearing Carrier (4 replies)
- Help take cam out of 400ex (5 replies)
- will 250x piston fit 300ex? (3 replies)
- Is a TRX450 clutch cover the same As a CRF450 (4 replies)
- stiff throttle (5 replies)
- clutch problems (2 replies)
- Bottom end power? (6 replies)
- So what jets do I need now? (440 bore + other stuff) (8 replies)
- HMF Exhaust Leak (3 replies)
- Starter cable (4 replies)
- Wheelies And The Dial-a-jet (0 replies)
- 400ex Overflow tube leaking Fuel??? (16 replies)
- ticking noise (4 replies)
- Webcam with compression release removed? (6 replies)
- new slip on pipe (3 replies)
- Stripped oil bolt! HELP! (14 replies)
- DMC Alein SLip on (4 replies)
- another hmf question (6 replies)
- Axle Nut (3 replies)