- 250R Clutch...help!
- 400 EX Rev Kit
- Cams!!!!!
- Some 416ex kit ?'s FDO?
- exhaust
- different sprockets?? where to get...
- airboxes
- Enigine Knock
- Engine work
- 250x carb size
- curtis sparks pipe jetting
- exhaust 300ex
- recon exhaust?
- a great cam
- dynojet stage 2 kit
- Intake Broke Off!
- White Brother Exhaust HELP
- CRF450 Timing Chain does NOT fit 400EX
- couple of 400 ex questions
- Question about getting a 416 Kit
- 250x Electric Start Kit
- 1991 honda 250x Electirc Start Kit
- boat for oil changing stripped
- Dial-a-jet?
- starting problems
- 250 reed cage question
- good repacking material
- molybdenum disulfide oil
- engine problems
- will it hurt my motor if i!!!!!
- hrc cam
- Smoke!!!???
- 39mm FCR ???
- In your opinion....
- MX gearing
- Magura Clutches
- Advanced timing question
- Does this sound right? (only for people that KNOW their r's!)
- Krank-it Racing
- cams
- Clutch Springs
- Where to buy Chains and sprockets?
- The bolt on my flywheel keeps backing off!
- 250x rebuild questions
- dial-a-jet question
- What to do with my motor?
- 440 kits
- How much oil in 250R
- Smoke or not?
- slip on question
- brandy new 400ex
- Horsepower chart
- not reving right??
- bottom end loss?
- gas?
- supertrapp 250x/300?
- quick carb ???
- uneven wearing in the cylinder means...
- Radatior Hose rubbing on pipe!
- FMF powerbomb
- 13 or 14 tooth front sprocket
- Fcr 39mm
- Lectron 40mm vs. FCR vs Edelbrock
- head bolts keep coming loose
- best cam for a 300ex?
- Pilot jet question...
- loosing oil through breather?
- Air screw ?
- cleaning valves and internals?
- stock air screw position anyone?
- FCR carb ?s
- 5th gear power?
- Heavy oil question
- clearance of chamber
- 250R bogging
- best pipe for under $200
- 440 cylinder sleeve boreing?
- odd jetting
- 250 ex stock head pipe
- newbie to big bore kits
- anyone know about................
- "TRICK" octane booster??
- 400EX powerbomb ?
- installing oil rings on piston???
- cr 80
- Clutch's...
- quick FMF question
- 400ex to 216 then 426 now 440
- just a quick question, please look
- LRD exhaust
- smokes alittle when i get the rpms up high ?
- few questions
- where can i buy silent sport packing?
- do you put oil in valve cover caps after a rebuild?
- Rough idle
- What Is needed for 39 FCR off 02 cr450f?
- Engine runing like chit please help
- quickest way to get axle removed from swingarm
- 300ex Rev Limiter
- How long...stock clutch last racing mx?
- Bad Luck!!!
- Z running poor
- 416ex electrical probs
- black pipes
- 400ex rev conversion
- How does gearing increase your power?
- adjusting valves after hotcam install?
- bummed out 400 rider
- Any relation between cams and # of disks run on E-Series?
- stock 400ex chain length
- 300ex broke
- Low End Cam
- Question
- Edelbrock carb Help!
- qite core by white bros?
- shifting trouble?
- 400 EX just quit
- 250R port timeing
- hmf for 250ex
- CT midrange package
- how much power.....?
- full hmf pipe for 250ex
- sprocket
- The problem isnt fixed...
- Chain falls off....
- 330 kit question
- fcr carburators
- questions
- where to get a thumb throtlle cable for a fcr
- Should this be possible????
- Where to get a good cheap case saver?
- where is top dead center?
- who keeps up with a raptor and predator?
- does a cam/piston combo mean rejetting?
- 350X trans in 400EX
- FST oil coolers
- used a tether....now it wont start.....
- white brothers R-4
- Different Jet Size Meanings...
- Chain Size....ARGH!!!
- Clutch HELP!!!
- 300ex kick-start
- muffler header combos
- XR400R carb
- Just backfires and wont start
- air cooled--blow up??????i dont think so
- 300ex motor work
- 350x
- kick start 400 ???
- 180 or 185 main?
- Jeting Question
- Somebody Tell Me More About The 463
- honda 450 not actually coming out!!!!!!!
- filter and jetting ??????
- airbox modifications!!!!
- Jets
- how to post pictures?
- post a tip!!
- leaky card
- 440ex gearing
- Temperature
- FCR 39, How are you set up?
- T-4 slip on
- aftermarket head
- yz Piston in a 250R ??
- How do i install my pro design kill switch on my 300ex?
- 4.3 tank anybody?
- question for any 250x owners....
- Cam N Hardened Arms
- valves should be replaced if....
- Which Is Next for my 426????Help
- new high compression piston and cam
- Important:::read
- Duel header for 400's
- putting it back togeather
- 250x axle swap
- Blue smoke from muffler when revving engine?
- A little off the top
- plug help
- 400ex Cdi??
- shaving flywheel
- 2000 400ex
- Looking 2 buy an EX w/440 kit...reliability???
- good setup??
- I Need Help 400ex Wont Start
- TRX450S Carb flooding
- 330 kit
- Help...Fuel Problems
- engine back fire
- Leaky Oil Tank.......Any Help
- What is the process to change clutch plates on a 250ex?
- What else should I do to my 416 engine?
- carb help
- sparks 8 plate clutch owners
- Mickey Dunlap!?
- Carb Help...
- 400ex pipe
- oil burn
- 300EX wiring AGAIN!
- Any Word on the 450R????
- 400ex Axle in a 250r?
- Which 440 kit works best and is still reliable for a reasonable cost?
- reusing valve cover gaskets on 400ex?
- durablue axle question
- trx 500r
- carb help please
- Quietest exhaust with best increases throughout the powerband
- 300ex Spitting and sputtering while racing
- Stock 300ex HP?
- New oil tank???
- wheel studs
- stock head pipe?
- 400ex and Z400 Question
- Head Gasket ?'s
- 2 stroke help
- what the heck is wrong with my clutch???
- MegamaxII?
- Its the 10th whats up with TRX450r
- will a dial-a-jet work on a 39fcr !
- need some info about my carb .
- Where is the oil coming out at
- need some info about my carb .
- Where is the oil coming out at ??
- clutch cover problems
- Would like advice about megamaxxII+Powerbong
- Not starting at times
- 500ex needs help real bad
- engine builders please help
- dyna ignition?
- Exhaust Help
- jannessen
- rejetting
- port an polish?
- 300ex jetting
- Rebuild
- Anyone got motor work done by sparks?
- New to 4 strokes, how to make it fast?
- jet question??
- help with new 400
- Spark Arrestor Help!
- Need Help On Motor Decisions
- Has to be the main jet....
- need help!!please
- 16T front sprocket
- Upgrade the 400
- Assembly lube for new cam
- loose chain?????
- Sweet HMF
- 39mm or 40mm FCR
- radiators