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- Hotcams Stage 1 (5 replies)
- insane ticking/ tapping/clanging (6 replies)
- stupid question. quiet exaust (2 replies)
- What bore is 89MM (4 replies)
- ???????????? (3 replies)
- Which oversized oil tanks work with the PEP steering stab? (0 replies)
- what shall the next mod be??? (18 replies)
- sparks 8-plate clutch (2 replies)
- 01 400ex starting problem (2 replies)
- what do you guys think of a RCM pipe for a warrior? (4 replies)
- Boring specs? (2 replies)
- this is pissing me off (18 replies)
- blue pipes (9 replies)
- wondering about HMF (2 replies)
- 300ex idling fast (4 replies)
- 250r cool head/jetting problem (0 replies)
- throttle cuts out?? (3 replies)
- 400EX exhaust fit 300EX? (2 replies)
- How many thousandths over is a 416? (1 replies)
- new cylinder questions (1 replies)
- Stock bore piston (2 replies)
- Case saver. (6 replies)
- 300ex exhaust on 250x? (2 replies)
- Sorry but an HMF exhaust question! (11 replies)
- Shorty for a Predator? (3 replies)
- 450r Big Bore (3 replies)
- 250r more power (3 replies)
- leaded gas? (3 replies)
- Another Jetting Problem (3 replies)
- full system or not? (4 replies)
- letsClear this up! (10 replies)
- Header meeting Slip on is lose (10 replies)
- Tire size and sproket size (3 replies)
- what year raptor's need tranny ugrade. (22 replies)
- 416 reliability?? (13 replies)
- Please Hellp Me Fast!!! (3 replies)
- ltz400 engine noise (2 replies)
- New Big Gun Rectifier (2 replies)
- Too Low of Gearing? (4 replies)
- the Zen of exhaust swapping.... (18 replies)
- Auto decompression thingy (13 replies)
- Need Help Installing A Kill Switch On My 450r (2 replies)
- Starting problems (0 replies)
- HMF Pipe?????? (1 replies)
- If i am gonna put a 400ex carb on my 250x........ (2 replies)
- Throttle Cuts Out!? (15 replies)
- pinging (8 replies)
- does LRD still make engine kits for teh 300ex? (4 replies)
- pro-fab (0 replies)
- weird clicking noise 300ex (7 replies)
- Groupbuy interest in Ross pistons (118 replies)
- Can u beat it ? (0 replies)
- ex talk (1 replies)
- Predator Stock Exhaust (4 replies)
- ? about WB e-series pipe (4 replies)
- Quiet core (2 replies)
- Which cam with setup? (14 replies)
- Will a crf450 motor fit in a 400ex frame?? (8 replies)
- FMF Megamax broke (3 replies)
- Quick ? Please help! (1 replies)
- Anyone have any problems w/ Sparks pipes?? (18 replies)
- Hotcams stage 1 or 2 (8 replies)
- looney tuned exhaust (0 replies)
- Looking for mx setup (0 replies)
- question about exhaust (0 replies)
- 416 popping no start?!?!?! (16 replies)
- carb jetting help (0 replies)
- pipe (24 replies)
- cobra exhaust (32 replies)
- I need MORE BANG (0 replies)
- JE, Weisco, or Ross Piston??? And A pic of my bike.. (13 replies)
- what jet for a 406ex (0 replies)
- starting problems (0 replies)
- I need help (1 replies)
- "O" I'm sooooo excited (18 replies)
- I need to hear your engine run 400ex owners (17 replies)
- 2000 Blaster Headlight Removal??? (3 replies)
- WB Quiet Core (3 replies)
- Air filter and carb brackets. (0 replies)
- best size big bore kit (300ex) (1 replies)
- would this be hard? (14 replies)
- i need some more help (2 replies)
- Stock chain links (2 replies)
- got smoked by a stock 400ex!!! (6 replies)
- Qusetion About White Brothers (2 replies)
- Water in motor?? (2 replies)
- cheapest pipe?? (3 replies)
- 300ex chain loose (14 replies)
- Yo Rico (1 replies)
- What Up With GT Thunder?? (7 replies)
- TC pipe ??? (4 replies)
- carb vs cam and piston?? (20 replies)
- running problems 300ex (6 replies)
- Anyone tried iCATusa (1 replies)
- silver tiny particles coming out when i changed the oil (18 replies)
- Whats your opinion...... (20 replies)
- GT Thunder 400EX CDI (11 replies)
- Question about running no end cap?? (21 replies)
- Anyone with an aluminum airbox - read this! (20 replies)
- Cam Cover Thickness? (0 replies)
- need help...i need to split my bottom end!!!! (7 replies)
- knock at idle (16 replies)
- Jetted Right?? (17 replies)
- time'n question??? (2 replies)
- wiring? (4 replies)
- Engine rebuild? (4 replies)
- Anyone with a 16t front sprocket? (12 replies)
- How do u like ur HMF's? (19 replies)
- clutch, whats up with it??? (7 replies)
- cheapest big bore kit(300ex) (1 replies)
- oil gauge (0 replies)
- engine builders reccomendations please (6 replies)
- 400ex rebuild costs and suggestions (12 replies)
- Which Headpipe (3 replies)
- Need help! Oil pump! (4 replies)
- Fst 330 Rings (2 replies)
- Yoshimura comp full system or big gun full system? (6 replies)
- 400 EX Meltdown (22 replies)
- Clutch Pull ??????? (20 replies)
- dunes and mx racing (1 replies)
- Black smoke coming out of new pipe...jetting ? (3 replies)
- Easier Starting (2 replies)
- home made valve ajusting tool (11 replies)
- i hate my 400 (14 replies)
- **400ex Smokin** (3 replies)
- 400ex, 250r , and crf 450 all in 1 ? (9 replies)
- Do I need to buy the same? (1 replies)
- Need fast help! rear brakes! (21 replies)
- chain,sproket,and gearing help/sugestions (8 replies)
- Hmf? (9 replies)
- 400ex stage 2 hotcam and a stock piston (3 replies)
- oil pump (3 replies)
- I Need Help!!!! (2 replies)
- best clutch (2 replies)
- Dyno Results (15 replies)
- help me my 400ex wont run (2 replies)
- rev limiter (6 replies)
- lets have another fcr jetting thread!!! (6 replies)
- should i just wait till it is completly dry (13 replies)
- any do the fcr accel. pump mod? (16 replies)
- Wont start or turn over (3 replies)
- need help today!!!!!! (10 replies)
- What 400ex Kit 440-426-416 (11 replies)
- Trx 450r (1 replies)
- dg pipe (4 replies)
- 400ex 14 Tooth Sprocket (10 replies)
- Please Read who know alot about the performance of a 400EX (16 replies)
- Jetting 300ex (3 replies)
- Does anybody take the time to check piston to valve clearance? (1 replies)
- 87 250x / durablue problems (5 replies)
- who running a edelbrock carb on there 300 (4 replies)
- HMF Exhaust Question????? (7 replies)
- does pro circuit make? (7 replies)
- 400ex race (8 replies)
- What are the sproket sizes on 400ex (11 replies)
- Removed choke? (4 replies)
- WB E-Series quality issues? (9 replies)
- Is it necessary to check the torque’s after a top end engine rebuild? (1 replies)
- Can someone give me specs..... (3 replies)
- k&n, UNI- Jetting (3 replies)
- Engine knock?? (2 replies)
- Have 416 Kit! Now which Edelbrock?? (5 replies)
- got my curtis sparks (7 replies)
- 416ex Review (37 replies)
- jetting procircuit 400ex (2 replies)
- what are good cams? (12 replies)
- bad to not use clutch on 300ex? (6 replies)
- 350x cdi box (2 replies)
- Wheelie factor, seat of pants factor (18 replies)
- 300ex Will Not Start!!!!!!!! (14 replies)
- 39 FCR question, please help (3 replies)
- Hmf VS. E-Series (8 replies)
- Dyno Jets for HMF full system(400ex)Virginia...? (3 replies)
- cyl. sleeve (2 replies)
- vortex CDI?...good or bad? (8 replies)
- Broke a cylinder head cover bolt. (5 replies)
- carb (0 replies)
- how hard is it to put a cam in? (11 replies)
- 350x with 250x carb jetting (7 replies)
- engine ???? need advice (1 replies)
- just got threw installing my hotcamstage 2 (8 replies)
- Taking top end off engine (6 replies)
- Sprocket Sizing Help (6 replies)
- Engine Work!!!!!!! (18 replies)
- Full service on 400EX (19 replies)
- crf 450 in a 250r frame? (1 replies)
- lectron,stock,keihn,sell all get new (4 replies)
- Wanted TRX exhaust Look (1 replies)
- oversized oil cooler (8 replies)
- Heat Shield Wrap for the Header (21 replies)
- uni all the way (2 replies)
- 440? (6 replies)
- water hole 400 won't start (8 replies)
- In the Mile High City Should I do the 440 kit (1 replies)
- V-Force Kill Switch Help (1 replies)
- stock carb size? (1 replies)
- More Torque? (7 replies)
- Stock Muffler Finish (2 replies)
- Keihn jets vs. Dyno jets... ? (8 replies)
- Constantly Blowing fuses (7 replies)
- hole in pipe (0 replies)
- spark arrestor (6 replies)
- FCR or edelbrock? (23 replies)
- K&N vs. Uni (49 replies)
- Anyone ever heard of a motor doing this? (10 replies)
- How can I modify the CDI on my 300EX? (2 replies)
- need info about rejetting a blaster with a fmf (7 replies)
- More Power Please (3 replies)
- Anyone removed there auto decompresion lobe from the cam??? (3 replies)
- Has anyone bought oil filters off ebay??? What do you use? (8 replies)
- Elderbrock Carb (6 replies)
- could somone get me close with a jet for start up (2 replies)
- cam specs for hotcams and HRC cam (3 replies)
- jetting with out taking off the gas tank (3 replies)
- average miles per year (5 replies)
- My quad is dead, I'm taking suggestions! (17 replies)
- smoking EX (7 replies)
- LRD full system buring my clutch cable!!! (9 replies)
- outerwears cover for cfm airbox? (2 replies)
- Electric shortage (0 replies)
- Pics of my new HMF Ballance full system and MSD ignition (56K Beware) (61 replies)
- Big Bore (1 replies)
- Outerwear To Replace Airbox Lid ??? (19 replies)
- aftermarket cams (16 replies)
- full system or what? (3 replies)
- battery issue (2 replies)
- Broken Piston (10 replies)
- 1986 200x diagram (2 replies)
- Key or no key that is the question (3 replies)
- 16T Front Sprocket? (7 replies)
- Help with next mod?? (4 replies)
- Carb Screws (400Ex) (1 replies)
- strange noise (2 replies)
- 300ex left case question (1 replies)
- yes!! an other jetting problem please help! (6 replies)
- 300ex Serious Problem (14 replies)
- XR 400 Cam (19 replies)
- 400ex cutting out at water crossing? (8 replies)
- another jetting question (7 replies)
- performance tricks! (5 replies)
- New Cam/Ignition Key ?'s (7 replies)
- 300EX Sator....How Much? (0 replies)
- Deep water (2 replies)
- 400ex won't start (13 replies)
- how to check db level? (3 replies)
- 400ex wiseco piston for sale (1 replies)
- rtc clutch (15 replies)
- Cleaning Pipe (1 replies)
- 400ex (4 replies)
- 400ex not revvin up help (8 replies)
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