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- four stroke tech
- Bike sat for 1 year
- Where to buy dynojet 148?
- HELP! Oil Blown Out of Air Filter!
- Has anyone bought the Emgo oil filters off ebay???
- Honda Xr250R CDI on 400EX?
- need some help with my 426
- what is a good bore for a 400ex
- 2005- 400ex?
- rev limiter on a stock 400ex?
- what is good gearing for racing
- What piston kit?
- Best Carb for Instant Throttle Response?
- Shifter Adjustment
- 250x grounds
- what is good gearing for racing tt my tires are 20in????????
- will the 2003 400EX axle work in a 1987 250X
- clutch and brake problems
- Db level for my t-4 slipon???
- best place to buy yoshimura?
- I Need Help!!!
- big bore kits and oil coolers
- 400ex jetting
- 465 kits?
- signature
- jetting A white bros. E-series....help
- Hotcam, rockers, etc
- valve timing question?
- What gearing for sand/dune/desert trail riding?
- LRD Exhaust Spark Arrestor?
- Head Pipe
- How to's for installing a 416 kit on a 400ex
- pics red HMF pipe on 300ex
- exhuast question
- 250x exhasut?
- yoshi pipe
- Dial-A-Jet Fuel Induction System????
- fcr or lectron
- 450r fan
- hetrick 310 kit?
- 400EX w/ FMF Pipe - Jetting - Any Ideas
- What gearing do you guy run on the 400's for XC?
- UNI Air Filter?
- how do you post a pic????????????????
- Valve adjustment on 400ex, web cam?
- trinity racing pipe
- Axle bearings wearing prematurely??
- 39,40,41 carb size ?
- ? about numbers on JE piston
- Clutch still slipping, help!
- 16 tooth front sprocket for drag racing
- 440 will not hold idle
- chain lube
- Jetting, please help!!
- 87 250x flat throtle response
- Aftermarket Oil Cooler - 400ex
- 300ex axle
- 300ex with dirtbike killswitch?
- test
- hot wireing
- Wiring
- 400 help plz
- 250R axle doesn't fit 400EX
- "serious" help needed
- Top end rebuild questions
- Bogging in and out after runnin for a lil bit
- exhaust too loud
- Higher top speed
- yoshimura exhaust
- need some help
- 250X Cam Chain Adjustment
- 350X Conversion Questions
- thanks guys for the help
- lte racing
- How to install main jet
- carb got my confused
- 300ex camshaft
- exaust suggestions
- 450r exhaust on 250x
- whats wrong
- 41mm FCR to big for modified 406?
- cutting out at 1/2 - WOT
- jetting for my 400ex?
- 400ex port
- Front Sprocket
- need some opinions
- Main jet or Jet kit?
- 10.5:1 compared to 11:1 piston
- whats next
- 400ex carb on a 300 ex
- Heat
- exhaust
- Which is stronger?
- what is a better pipe?
- drag pipes on a 4 stroke???
- crf426 q's
- pics of hmf pipe on z400
- Sleeve or just bore for 425
- Carb only opens half way
- Help?? Carburator and Jets
- post some pics of thos hot bikes
- little starting problem
- 300 jettin
- Question...
- A little help...
- idle adjustment
- 400ex engine mods
- DMC vs. SPARX vs. HMF
- Damaged Cylinder
- a little smoke
- some questions on 400ex mods
- Dealer Piston Service
- power-now on FCR?
- Carb spacers?
- quiet 300 exhaust
- started sputtering
- Header leak..
- XR400 Cam in 400EX
- ring or vavle seals
- Where?
- FMF Q Exaust
- if the 400 was.....
- stock crf head pipe????
- Exhaust gasket?
- another jetting ?
- 400ex engine swap??????
- i don understand
- big bore kits for 1986 lt230s
- Outerwears airbox "lid"
- gasket sets?
- 300ex throttle limiter
- electrical problem
- cam??
- stock bore high compression
- leaking valves?
- 300ex chains
- Is there such a thing as a keihin 150?
- cobra pipe for 300ex?
- Dial a Jet 4 my Recon
- 300ex chain adjuster
- removing a clutch
- cam?
- dg pipe
- running rich
- Hetrick Racing Exhaust
- Ahhhhhhh!
- quiet, yet loud exhaust
- 400 ex 416 kit
- best place for a big bore kit
- help
- Clutch Kit ?????????
- question about a 250x
- Port and Polish
- who should i let biuld my engine??
- Quick question
- case saver
- 400ex Big Gun
- Does a cam effect compression
- Damnnnn!!!
- ATV DYNO - Is there such a machine?
- What is a Jug?
- 400ex exhaust help
- carb has my confused
- CRF 450 overheating...
- Should I switch pipes?
- Is it my Cylnoid???
- Stretched Cam Chain?
- Spark Plug Heat Range
- hmf,fmf,white brothers pipes
- Help Please!
- how fast
- can't decide which pipe...
- New to the World of Carbs
- jet4power
- Whats wrong w/ this picture
- Timing Chain Tensioner going bad......
- Edelbrock carb for a 300ex
- smoke
- yoshimuras website
- yoshimura exhaust
- More power on a Z400
- where to buy...valve seals and headbolts
- Do I need one?????
- Help
- 300 runs like sh*& when cold
- JE piston help!
- Exhuast stud torque?
- Is it just me or???
- Hot and Humid
- Help timming a 400ex! HELP!!!
- cams for stroked motor?
- lookin for a bore....
- 350x Hp?
- 300ex air scoops
- clutch whirring
- rear tires?
- Raptor, Oil under the Ignition cover?
- LRD exhaust??
- ? about 39mm FCR
- need help fast 300ex valve lash
- HOTWIRE- quad won't spark.
- 250x Carb problem???
- exhaust?
- cooling & gearing on a 465 stroker
- 300ex Motor Tranmisson Blown Out
- sprokets
- valve adjustment
- Curtis Sparks Pipe need to know??
- Hushing up my pipe.
- 400ex timing chain
- Motor Will Not Rev Up
- Backpressure
- Busted clutch cover on 450r
- Give me info and insight on YFZ motorwork...
- Anyone else do this?
- new carrier or just bearings?
- exhuast
- wiseco 416 or je 416
- What is a good crf cam, and crankshaft, and other stuff?
- ignition switch
- Timing Chain
- Hotcam Stage 2
- bent shift shaft
- Hot Cam Stage 1 or 2
- Can You Name That Sound???please help....odd noise
- clutch and pipe
- 04 blaster
- White Brothers R4
- white bros
- need help asap (barrings and seals)
- 426 over heating how many out there do it?
- Carb problems
- uhhhh ohhh
- Trans problem during racing
- sparks
- leakage
- Need some axle nut help..... Torque-ing it...
- hubs loose except for cotter pin???
- CRF450 cam in TRX450
- Anybody know where to do some crank work???
- timing advance
- 2000 400ex stock carb problem
- where to buy a yosh slip on
- help on big bore kits
- Bent rim and bearings?
- uhg wow....
- Heavy Duty Cam Chain
- Quiet Core?..
- good deal or not
- exhaust
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