View Full Version : ATV Powertrain
- found out that my ex has a amazing 22.1 HP. (10 replies)
- je piston (1 replies)
- Question for ya`s (9 replies)
- Whats Wrong? (11 replies)
- cam for 300 (5 replies)
- Help!!!!!!!! (17 replies)
- Best Oil For Stock 400EX (6 replies)
- dang! (18 replies)
- what do you think about 300ex?? (9 replies)
- jetting for 416? (1 replies)
- Backfire (6 replies)
- 250X High Comp. Piston (6 replies)
- Help, Backfire` (1 replies)
- Recpn Engine Problems!!! Help (0 replies)
- WB all round cam and 10.8 or 11.1 pistion sound good for a 416/ or 426??? (16 replies)
- White Bros R4, Supertrapp, Yoshimura (2 replies)
- my Honda\Yama. dealer told me the best oil is YamaLube! (1 replies)
- Question on rev kit for a 300ex!! (3 replies)
- Another Jettin Question (2 replies)
- FMF Ti-4 Slip-On (1 replies)
- still reads lean, help!!! (18 replies)
- 416 or 425 (23 replies)
- TC Racing exhaust - MX? (11 replies)
- 440 or 416 (14 replies)
- Air Box Question (9 replies)
- wat jet to go with (7 replies)
- Blown Gasket!! on 2002 300ex (11 replies)
- Engine Building? (2 replies)
- nerf bars (4 replies)
- Aftermarket cam and stock rocker question (8 replies)
- best engine mods (2 replies)
- how is the yohimura slip on for a 250ex? (0 replies)
- Cold start prob with new 400EX (11 replies)
- white bros exhaust (1 replies)
- Bored over Question? (6 replies)
- help me stroked 465 and ex marlin (4 replies)
- Lectron, FCR,...BIGGER CARBS (14 replies)
- 416 (2 replies)
- white brother end caps or other disc exhaust question (4 replies)
- Cylinder head cover (1 replies)
- Not another exhaust thread! (1 replies)
- Exact oil measurement?? (1 replies)
- HMF exhaust info. (9 replies)
- Oil Oil Oil (2 replies)
- Outerwears air box lid (10 replies)
- Honda HP4 10W-40 (13 replies)
- 300EX gearing (4 replies)
- KN filter outerwear (3 replies)
- Carb Rebuilds (2 replies)
- CDI Box, is there a way to make it work (13 replies)
- Best Port Job???? (1 replies)
- 330ex or stock with mods (4 replies)
- Just A Little Question (3 replies)
- were to get xr400 cam (1 replies)
- Which exhaust system? (25 replies)
- 416 w/ 11:1 (10 replies)
- Cams (3 replies)
- porting??????? (6 replies)
- Sparks Racing (17 replies)
- Quiet Pipe ??? (34 replies)
- Need Help!!!! (e-series) (3 replies)
- rebuilding my motor (12 replies)
- Sprocket Sizes? (4 replies)
- 440 Jetting (0 replies)
- Aftermarket cam and decompressors on 400EX (4 replies)
- 300ex parts on 250x? (7 replies)
- Burning Oil? (4 replies)
- help i need a pipe!!! (1 replies)
- Marcum's ATV (1 replies)
- starter brushes... (2 replies)
- HMF Engineering??? Pipes for 300ex and 250EX, The same?? (5 replies)
- 440 smokin (13 replies)
- REV Limiter??? (21 replies)
- removing choke? (2 replies)
- Carb jetting issues (3 replies)
- 8 Clutch plate system, what components? (21 replies)
- best power output (6 replies)
- Whats the carb for a 400ex (6 replies)
- xr400 question (0 replies)
- jetting changes for xr400 cam (2 replies)
- Intake (1 replies)
- 440 Kit (2 replies)
- 400EX or XR250 (1 replies)
- xr 400 cam valve adjustment (1 replies)
- Hrc cam (24 replies)
- Lectron carb question (0 replies)
- Curtis Sparks Pipe? (13 replies)
- White Brother R4 (4 replies)
- Modding A Stock Carb (12 replies)
- new model FMF pipe!! (2 replies)
- slip-on (3 replies)
- DMC full system (7 replies)
- 400ex ring gap (1 replies)
- Fresh 440, something's missing (9 replies)
- FMF Ignition (2 replies)
- xr400 cam queston about break in (2 replies)
- Cams and Carbs (1 replies)
- Adjusting fuel jet (1 replies)
- Clutch (8 replies)
- 400 is smoking (2 replies)
- help cam ? (2 replies)
- New Hetrick Racing Honda Seat Latches! (13 replies)
- cam? (6 replies)
- Is the 440 no good?? (3 replies)
- Xr400??? (9 replies)
- 400ex oil (31 replies)
- t-4 for 250ex (4 replies)
- XR 400 Cam Problem (7 replies)
- which pipe would help more in selling my quad (14 replies)
- K&N Jet Kit Stage1&2 (7 replies)
- My sleeper 300ex (7 replies)
- 416 mod (6 replies)
- Pingry's website!! (1 replies)
- Still wont start? Please help (0 replies)
- CR250 intake and reeds on a 250r (4 replies)
- Hi Compression Piston Part # (1 replies)
- Thanks abunch (3 replies)
- finaly got my 406 running..... (6 replies)
- Still won't start? Please Help (6 replies)
- Looking for 440 information none on this site? (1 replies)
- ProCircuit T4 Tips (6 replies)
- 400ex hi comp. pistons (1 replies)
- White Bros. E Series Exhaust (18 replies)
- What mods to make a 400EX run with a Raptor and Banshee? (4 replies)
- New Hetrick Racing 400ex Pipe and Silencer (21 replies)
- I change my mind too often! (3 replies)
- What engine mods for the winter? (8 replies)
- 300ex rev limiter Q's (3 replies)
- Stock Exhaust (5 replies)
- Kickstart (1 replies)
- what carb for 300ex (1 replies)
- best performing pipe for 300ex (2 replies)
- xr 400 6 speed (3 replies)
- hrc piston (1 replies)
- oil pump (1 replies)
- wHiCh is FaSter?!? (31 replies)
- What are the best mods for a 300ex? (5 replies)
- hott plugg (15 replies)
- xr cam (1 replies)
- Gaskets what are the best (1 replies)
- Xr's only HRC Copy/GT Thunder/XR400 (13 replies)
- where to get sparks advance timing key? (4 replies)
- Advise on upgrades (11 replies)
- xr400 6 speed (14 replies)
- 250EX valve clearance? (5 replies)
- Gearing (1 replies)
- 400ex HP?? (1 replies)
- 420EX update, part 2 (9 replies)
- 440 head gasket (1 replies)
- White Bros. R4 exhaust tip (1 replies)
- Rev-er-up Engine Metal Conditioner (1 replies)
- Still have an engine problem, please help (5 replies)
- Reading plugs (5 replies)
- Regearing a 90 (6 replies)
- Question on silencer and plugs (6 replies)
- Timing Key (2 replies)
- GT Thunder cam (2 replies)
- 400 EX flywheel (1 replies)
- Cr Perch!again? (4 replies)
- ProLong and Dura Lube (7 replies)
- would this work? (oil change) (2 replies)
- pipe on 250x ? (2 replies)
- 400ex > 440ex (1 replies)
- ok... my stock exaust is creeping me out... dent in silencer. (3 replies)
- 406/416 question (8 replies)
- air box filter vents? (12 replies)
- outer wer pre-filters (4 replies)
- Where to Buy High Comp. Piston? (3 replies)
- Stock jetting on a 400EX anyone know what it is? (15 replies)
- 440 kits (2 replies)
- engine case polishing (31 replies)
- JE416 + HRC Copy Cam = ? (0 replies)
- what should i do to my 300 ex (9 replies)
- k&n power kit for a honda 250ex? (0 replies)
- DO you think i choosed the right one (3 replies)
- Exhaust end cap on 250ex (10 replies)
- Valve adjustment Question?? (4 replies)
- Noise! (6 replies)
- xr400 cam change can you (3 replies)
- what is your favorite out of these quads (6 replies)
- 400ex pipes? (6 replies)
- bought 2002 300ex today nd starter is acting up...... (8 replies)
- Clutch (2 replies)
- Oil tank opening...... (7 replies)
- Sparks ignition key vs XR 400 ignition key (9 replies)
- Hey 400EXJOE, heres a pic of part of one of our toys (8 replies)
- Pro Circuit T-4 (4 replies)
- oil tank (2 replies)
- crf450 spark plug (0 replies)
- race gas (9 replies)
- Spark Plug Gap, urgent, need help like today... (4 replies)
- stroking an engine? (15 replies)
- 330ex kit? (14 replies)
- 250X compression ratio??? (2 replies)
- White Brothers? (8 replies)
- what would be the best pipe for a stock 300ex (21 replies)
- What gaskets (3 replies)
- Need 250R engine specs (4 replies)
- 440 piston and cylinder installation (4 replies)
- 420EX update (32 replies)
- Cam Brand (1 replies)
- 350X cam size (0 replies)
- 400ex carb question (2 replies)
- what is the best aftermarket pipe for a 250? (2 replies)
- Curtis Sparks Advance Key (5 replies)
- piston questions? (5 replies)
- Smoking (5 replies)
- 400ex carb (5 replies)
- Backfiring at start up? (4 replies)
- Alcohol Injected 400EX (8 replies)
- What carb comes stock on a 86 250R (8 replies)
- Help....Twist Throttle (6 replies)
- Which cam should I use (12 replies)
- Clear Snorkle on 400ex? (7 replies)
- Not another jetting queston!!! (8 replies)
- Raising A Clutch Shifter? (Thick Boots!) (8 replies)
- hp for 300ex (10 replies)
- how much power 416, 440 (6 replies)
- is a high comp piston worth it? (26 replies)
- Complete Big Gun System (3 replies)
- xr400 cam (2 replies)
- Kids 90 automatic not changing gears? (5 replies)
- What jetting to use with a T4, K&N, XRCAM (7 replies)
- jetting (2 replies)
- any help on cool eng mods for the 250x (4 replies)
- 250x v/s warrior (1 replies)
- Gas cap hose (2 replies)
- Help.....Twist Throttle Installation (1 replies)
- 440, 416, cam??? (5 replies)
- nitorous for sale on ebay (4 replies)
- XR vs. HRC cam (5 replies)
- Curtis Sparks Bolt on Kit (5 replies)
- whic jet kit is best?? K&N, dynojet, other?? (23 replies)
- Cr Perch (4 replies)
- 400ex oil cooler - Bigger Please (9 replies)
- Air Filter (3 replies)
- foot pounds (1 replies)
- Question on repacking pipes (1 replies)
- fmf titanium4 (2 replies)
- DG foward mounted oil tank (5 replies)
- Anyone Know anything about re-packing WB R-4??? (6 replies)
- The TRUTH about WB Rev Box! (4 replies)
- installation of 14 tooth fr sprocket (6 replies)
- TC`s Cross Country Engine (25 replies)
- What do you guys think of octain boosers? (10 replies)
- New "Fat Boy 4" exhaust from Duncan Racing (1 replies)
- Place In Ohio For Machine Work/installation Of 440 Big Bor And Cam (2 replies)
- FMF ignitions (19 replies)
- Power loss (5 replies)
- 330 jetting? (4 replies)
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