- whats my problem?
- Yosh pipe jetting
- Different pipe for racing??
- pop pop pop
- What size sprockets are you running???
- 416 Kits!!!
- Lonestar Bearing Carrier Question
- gear's?
- Best Oil for FoamType Filters??
- CRF450 into a Z frame...
- oil cooler?
- Valve adjusting, sparks timing key difficultys
- hard to start...not anymore
- need help!!!(please)
- Need Help on Tether kill
- I need help fast.
- Chain and sprockets
- 250r motor in a 400ex frame
- K&N/PC T-4 jetting?
- decided to shorten my silencer...
- 400ex piston question
- jetting problems
- Need More TC Racing info
- Fuel question
- proper break in period for a bore kit
- Teeth
- Sparks X-6 question. (Installation)
- profabatv kits have a problem
- 400ex cam or piston
- cr 500 in a 400ex frame??
- when doin a cam?
- battery won't charge
- number of discs to use with e-series
- 400ex carrier
- auto clutch for manual transmissions
- need exhaust valves
- cleanin cases????
- rod bearings on a 400ex
- getting the timing right?
- Need to Beat a Z400
- Information Needed
- 250r carb
- Ground my header welds..........Pics
- Cold start problems...
- Sprocket question
- 400ex wont start for anything! plz help!
- exhaust???'s
- valve clearance
- Valve adjustment, and valve seal questions
- Big Bore kits: which is best?
- Pipes!! --What is your opinion on the best pipes for the 400EX?
- 416
- Sparks National 416 vs 426
- front sprocket
- 250r in 250x
- Not getting any spark
- anybody have a aftermarket carb on there 300ex
- my fcr 41 carb on a crf?
- Power Gain
- bogging in all gears
- Public Announcement (uh huh..)
- TC Racing
- need help with instalation
- 11:1 compression pistons
- Electrical problem-almost impossible to start
- chain roller thing ????? lol
- 400ex Upgrades
- What jets come stock
- stock for now
- carb worth it or not????
- OH Damn, Another HotCams failure!
- what jet?
- New sprocket / old chain?
- 416/440 big bore kit vs. high comp piston/cam
- 400ex engine...would it fit?
- Which pipe is better for a 250r ESR5 or LRD
- Engine builders....Help needed
- Crf450 in 400ex?
- TC Cam 926
- Hmf
- High Comp Pistons
- shining up my pipe
- Clutch cover
- PLUG CHOP -pilot jet/opinion's
- jetting
- flywheel/stator problem
- magura clutch help
- reading spark plug color
- 400ex high compression runners
- UNI Airbox vents
- gearing change
- ALBA Pipe
- Slip On
- Hard Starting, Plug Fouled!
- 13:1 or 12:1 Compression for 440?
- Hot Cams
- lrd pipe
- Cam Help
- Headers Melting Clutch Cable
- If You Have An Opinion On Hotcams Then Read This
- 400EX Exhaust
- Blowing Fuses
- Gaskets
- What size scoket is a 400 ex Spark plug
- will crf big bore kits fit in the new 450r
- Best Aftermarket Brake Pads ???
- 416 wont start help!!!!
- OOOPS!! Carb Problem
- Burgard bearing carrier problem
- Steam comming out of my Radiator overflow... *HELP*
- fmf megamax 2 ?
- Chain questions
- '01 400 won't start. Please help.
- what size jet do i use for a 400ex?????
- no choke starts?
- 300ex whats that noise?!
- front sprocket question???
- 400ex...Help!
- 300ex headpipe
- Clutch
- axle problems..please help!
- modified header
- what jet
- 400ex daul exhaust
- headers glowing?
- bummer
- piston and cam
- Rincon Pipe Reccomdation
- 400ex cams
- looking for a post
- slip on exhaust for built motor?
- 300ex worth 2400?
- 110 leaded octane?
- 41 FCR owners with 440's....please read
- Curtis Sparks pipe question...
- need more power
- any one here about the eddie sander racing engine for the 400ex???
- 400ex break in process
- break in process
- IS there a low oil light on the 400ex
- Gunnar Teather
- desert toyz
- need help
- Wtf!!!???
- jetting with a k@n filter and e- series pipe
- You guys that run AMSOIL look here
- Who cleans up the ports?
- jetting
- Just ordered WB
- pilot jets
- Jet sizes
- What oil to run
- Sparks timing Key
- Idle screw
- top end rebuild
- rev limiter???
- Yoshimura worth the extra dough?
- What compression does a stock 400ex have
- whats the diffrence?
- After market carb
- 300ex Won't Start
- Race Your Built EX Against the New 450R Yet?
- Jetting Question for 300ex
- exuast question
- they DROPPEd the pilot in my 426???
- Stag 1
- carb question
- 2004 400EX carb 38mm?
- wb disc's?
- 250ex full system - HMF or Graydon?
- 2000 400 ex shift problems
- 250r clutch update
- 426 all set up?
- Clanking noise?
- tried plug chop
- light bulb
- slow jet
- were can i get a good price on axle bearings
- Air/Fuel Screw
- cripes
- Shift lever position
- Sparks Ignition Purchase?
- anybody running HMF Exhaust? on a RECON?
- wobbley crank
- Will I be happy with a 400ex
- i think i want a 310 for my 250r?
- motor prob!
- dynojet needle and carb question
- 400ex question?
- Stiff clutch Question!!!!
- what to do?
- What kind of chain/sprockets???
- key switch with a quadtech hood
- Shorty stock 400ex (HELP)
- Need a little engine help...
- Case Saver question?
- 250x to 350x conversion
- QUIET, w/no Power Loss Exhaust System
- drop in cams
- just a simple question about a cam....
- Methanol Carbs
- 400EX High comp stock piston or 416-need more power
- Fla.jetting -look
- Just got done with a valve adjustment
- Stupid Question
- HRC cam or XR cam ????????
- check this out
- oil
- i need some advise
- need answers
- whats the best carb?(426ex)
- Advantages of Stroking?
- cut's out at haft trottle
- Magura hydro clutch good or bad?
- Got amplink?
- sparks flying
- increase topend power on 400ex
- cr 250 ignition on a trx250r?
- bore size
- Engine cutting out!!!
- Cam removal question
- I cant believe Im hearing this.......
- exhaust?
- Puzzling exhaust stud leak??
- 250x/300ex jetting?????
- quad dies when throttle's applied.
- Re-jetting Question
- K&N or UNI filer?
- 416 rejet
- 426 vrs 440
- 250ex pipes ??
- 40mm FCR - Service Honda
- air comming out the sprocket???
- Bleed the brakes?
- I am jetting this weekend
- where to find odds and ends for 250x engine?
- Rancher Idle/Acceleration Problems
- conversion
- which pipe
- Sparks Key or 14T Sprocket?
- t-4 for 250ex
- 416 engine gaskets?
- what cdi's work in winter?
- Air vent holes/jetting?
- EMGO Oil Filters for 400EX
- Oil
- Spark plug
- wrist pin seized
- #40 pilot in 400ex question
- 440 big bore kit?