- Sparks Racing 416 National Kit
- questions about a 440
- Which revs higher???
- Stock jet size?
- Engine mods
- niks piston
- Anyone with YZ426 hybrid in here.
- Custom Shorty Pipes
- confused on clutch install
- Rev Limiter For 450R
- questions again
- engine side cover fix
- dyno jet kit
- Clutch??
- rev limiter
- 440 jetting
- big gun exhaust
- engine bearing re-use?
- 350 kit w/stock crank
- 350x wiring diagram
- 1/8 mile drag racing
- how much horses do you think my bike is making?
- 400EX airbox questions
- i have a blaster and if i mill my head what will i gain??
- 400ex mx gearing
- Waterproofing airbox
- Stocker CDI failure?
- Starter help
- FMF Factory 4 System
- Worthhe time and Money?
- axle
- ATV lights
- 400ex
- how to port and polish??
- how do ya tighten the chain
- Installing a TC shorty
- 300ex: mods
- 450r into a 400ex
- The unsolveable, on going problem
- jetting?
- what do u guys think?
- predator or yfz which is better?
- Props to Boondockers.com
- 412 or 416 big bore kit???
- KTM 520 On a R or EX
- yoshimura 400ex
- Noisy Starter
- need your op
- mnmoose 520 kit
- no wheeling 250r
- Pro Fab Atv
- axle nut
- blue smoke
- Spider Grip Special
- ignition coil question
- msd ignition
- Another pipe ?
- E-series pipe sounld like chit
- yfz jet fit predator carb?
- Possibly tranny problems with my Pred
- Used Sparks X-6 value?
- Don't buy JT racing sprockets
- frame cracked
- Um airbox
- 400ex carb on 300ex
- Pipe questiong
- Durablue axle question
- electrical
- xr400 or Hotcam 2
- 400ex Kick start...
- 250x sprocket
- who has had a frozen motor mount
- what 400ex kits
- Some Cr500 questions.
- Does any company make a solid chrome chain ?
- Jetting Help Please
- Can't get ahold of ProFab???...timing chains
- Best Pipe?
- Gettin a 426 kit
- 300ex head
- piston...
- where to buy struts
- fcr 39mm carb
- Oversized head Studs?
- Need a little more zip
- i keep fouling my plug?
- 4 months..not even a start
- 440 Owners help
- hetrick motors???
- cr500 motor in 400ex chassis
- does a 450 timing chain work on a 01' 400ex
- 450 chain on 400ex??
- question on 400ex
- do i have to re jet
- pro flo -vs- filter
- gearing/jetting for 300ex
- Looking for more power
- Help on aluminum airbox.
- best quite 300 pipe
- 400ex boreing
- Is this ok??????
- 416 Kit????
- 91 octane
- best blaster pipe
- when do you swap in synthetic?
- magnum rev box
- FMF Powerbomb Header
- 450r exaust on 400
- HMF or Yoshi?
- switching oils
- sprockets
- 400ex axle
- 350X parts
- HMF credibility
- for those who know jetting??
- edelbrock for 300ex? whos got one
- Hill Climbing?
- Do yoshimuras...
- honda 250ex engine bolt torque specs
- will this work
- help ingniton
- STILL unsolvable, STILL ongoing problem
- 300ex help QUICK!
- Starting to wonder about Honda
- Full system Rejetting
- 406 wiseco compression
- will synthetic oil give me more pwr??
- New Rings??
- 300ex problem
- Can't get my FCR to idle
- Question
- Valve adjustment troubles
- choke question
- Nitrous was kinda lame.
- Intake/Exhaust Mods, Airbox, and Jetting
- dusty and muddy conditions with airbox off
- 350x repair manual
- just putting a hrc kit end cap on need to jet?
- dies but will start again
- HMF pipe info?quiet core?
- how to figure out my hp ? and what to do. state ur opinions please
- No discs on white brothers
- Serious Problem... Please Help!
- Aftermarket Clutch Perch Help
- uh oh
- 400ex rolling chassis, what motor?
- how to tighten chain
- The Long Oil Bolt!!!
- directions for swapping rear axle
- 400 running rich
- 440 kit install insructions
- lectron carb?
- what's needed for rebuild???
- Exhaust For a 250X
- 426 or 450 motors
- any sugestions?
- 400EX sputters at creek crossings
- George Strait
- what is a 0.40 over??? 416???
- kick start screwed up
- i need a clean carburator
- FCR Vs. Lectron
- jetting
- 300ex questions
- Crank
- Cleaning carb help!
- choke out of the carb
- wich spark plug??
- how many cubes is .060 over on a 300ex
- 426ex sleeve????? HELP!
- I Have No Clue What To Do Next!
- Quality of eBay Bearings?
- 400ex Axle carrier
- 11.1 Piston
- 42pilot w/ stock exhaust?
- CRF 150F jetting
- What would give me more poweron my ex??
- dyna igniton 400-ex
- Odd oil leak
- bills pipe for 250r?
- Any problems with the CRF450 timing chains on the EX?
- Yzf400/426 Question
- Edelbrock Carburetor Eichner 440EX
- were to get 440 built???
- Hate to Say it Guys!!!
- need a little advice?
- carburator
- boggin out when hittin whoops
- DG Krome Power ATV Exhaust
- Question about changing axle bearings?!
- 300ex shifting ?
- best fmf pipe combo?
- Will rejetting be necessary?
- 440 oil temp?
- need some more power
- 400ex parts list NEED ADIVSE!
- reverse on '00 ex ???
- Can i get real performance from these products?
- my 450r problem help!
- HMF Jetting
- jetting for friends bike
- Need Help!! top end gasket
- 440 EX Dyno Results
- 450r muffler on a 400ex?
- How much power in a cam mod? Retarding it..
- Front sprocket
- Torq value
- wrist pin?
- Kill switch installation on 300EX
- bearing carrier
- 400ex plastic on a 300ex
- Aftermarket Oil Tank
- Re-Jetting After taking off lid
- sparks exhaust
- 250r go kart
- 300ex mods???
- durablue axle nut
- backfires when i let off the gas?
- Airbox/snorkel on 300ex
- CT Racing Exhaust
- valve adjustment on 300ex
- How much improvement with a 13:1 hi comp piston?
- how do i...
- spark arrestor
- 5 or 6 speed
- Sand causing death sounds?
- 440?
- Car transmission oil cooler on 400EX
- motor knocking after roll over
- Dynojet install / need suggestions
- Why Won"t Anybody Buy It?
- Hrc Cam Help Asap!!!!
- please help my quad wont run right
- Chain Tension Specs
- BAD grinding noise, Please Help
- 350x valve adjustment
- 300/350x carb
- whats stuff for racing
- 300 pipe
- which cdi box for the 400ex
- any way to seal header?
- WR cam in 400ex
- best 400ex pipe
- 2005 400ex tranny
- Mobile Dyno Services
- Suzuki LT 125 Compression Check
- 400 EX Motor Work
- 250ex pipe question
- 2005 400ex new 38mm carb
- Pro Circuit Exhaust Help!!