- Stokeing or Boring?
- Is this gearing overkill for a 450 stroker?
- WHITE BROS. E-Series,R4,YOSHI...... ????
- chm silencer
- ! Help !
- gears
- Oh I Need Help!!!
- Tie Rod Question ...
- FCR carb prob
- Bulletproof 400 ?? Must Read
- HRC cam part #
- base gasket
- Pipe DB's
- the two wires in clutch lever?
- DS650 dyno jet needle, where to find?
- what could cause this???
- ATV Tire Size / Gear Change Calculator
- 2000 400ex has no fire at plug
- Viton's Valve Seal Questions
- Best 440 gaskets?
- Stock 400ex db
- Cobra pipes
- starter guru
- exhaust question
- trx650x
- When bad things happen to good batteries...
- fcr 41mm. carb?
- engine shipment
- moose by bub ????
- NEED 39mm FCR TO MUCH $ where's the best price
- Need help with gearing
- Opinions on TRX 310 power?
- ********lil ? about jetting********
- What's the prob with older Pro-X cylinders?
- 400ex's drag racing with weird results??
- QUICK look at this pipe!!!
- Eric Cox
- Cam suggestions
- 350x engine in a 300ex frame?
- will the atc 250r motor fit into the 250r frame?
- Power Valve Cylinder
- Air filter question
- compression # meanings
- JE 426 kit and sleeve
- is there any aftermarket heads?
- 250x Piston
- web 479 cam
- service manual?
- 250x 12 tooth sprocket ?
- Ignition Adv. Tech article
- EX chargeing specs
- Gear shift shaft
- dmc
- wheel spacers for a 300ex
- Cheapest relieable 440 kit??
- 300ex wont start ? please help
- Header question
- a few things
- Throttle response
- Best For Freestyle 400ex ....
- mobil 1 for quads
- head pipe ?
- 250x gearing question
- help me
- 416 carb setting and jetting in NJ
- spark plug issues
- Grey Plug
- No low-end Power...help!
- anyone taken your stock end cap off your exhaust?
- Two stroke top end
- 416 top end gaskets
- what torque for exhaust bolts?
- Motor Problem
- I need help with my 300
- What happens when your rod blows!
- Dynojet
- What type kill switch do you like?
- what part of carb need adjustment
- Can i buy a slip on now and a header later?
- any1 ever done this?
- Tinging noise?
- With a sparks advance key, will I have to re-jet again?
- More power! KFX dogs me
- 250ex - 300ex carb install
- Buying a pilot jet online??
- Possible clutch problem?
- oil
- yoshimura rs3 and off-road exhausts
- Dura Blue Axle
- Stroke engine yourself
- Chain length
- ?
- ceramic vs jet hot
- T-4 question
- head gasket ?
- More Jetting ?'s
- big bore kits?
- another gearing question
- Smoking!?
- Clutch on the way out
- big bore kit?
- vavles+degree key=problem
- new 400ex parts list?
- LRD Pro 4 and Alba
- rode my 426
- Help Is My Motor Locked Up 300ex
- exhaust modification questions
- need carb suggestions
- Lectron Carbs
- pro design intake system
- New Cylinder
- Master Link for DID
- im looking for opinions on a full exhaust with the carbon fiber muffler
- Guess that Repair Game!!
- jet kit?
- Broken DMC dilemma
- anyone run titanium valves/springs?
- how fast?
- Installing new rings?
- No spark on a 1982 ATC200
- What oil do i need for my 450R????
- Leaded or Unleaded?
- Big Bore For A 300EX?
- 440EX Wiseco 11:1 Piston
- Carbureter
- Just installed sparks advance key - Now I have questions/problems! Can you can help?
- Reliability?
- K&N filtercharger
- Need Help with Pipe
- where can i find the best deal on a je piston and gaskets? thanks
- Yoshimura Jetting Suggestions?
- help!!!! WONT Start
- white brothers carbon pro pipe
- Top Speed
- Engine Rebuild
- FDO stroker mtr? No second hand info!
- honda gn4oil
- 400ex Top End Rebuild
- input apreciated 300ex
- jet hot ??
- fcr 41 or the edelbrock 440 ?
- what compression for pump gas?
- what would I need for a 416ex?
- WB question
- pictures
- ground stock header
- any fuses
- vavles
- idleing problem.
- Just recently Purchansed a 400ex.....
- who has their head ported?
- how to make my 250EX faster
- HMF or Sparks X-6
- exaust Db
- crf cam chain, yes or no??
- Plug test
- Mobil 1 Red cap question
- Dies instantly
- Carb Question
- Pics of accelerator pump FCR
- 2 stroke pipe
- Fat guy on a trx300 4x4
- Piggyback ignition???
- Hows' this for a surprise from the wife???
- NEW Battery
- Please give advise
- Machine shop or no?
- 1989 Quadracer Need Help
- Clutch
- Chain lenght with Lonestar swingarm + 1 1/4 400Ex ???
- # of links
- how do you bleed a margura clutch?
- jetting question
- what exhaust for 300 ex
- PowerCore 4 S/A Complete for '97 300EX
- Battery Died
- Cutting pipes?
- WB Discs????
- adjusting a clutch
- TC Super Trapp or Super Trapp
- Piston 11:1 or 10:1
- Sprokets
- Alba CDI
- 400ex vs z/kfx head
- 400ex piston and cam
- 450R Moly OIL????
- chain and sprocket
- Gear Ratio
- 2 stroke question 250r wet plug
- gas in oil?
- could this be it?
- Klemm Research
- how many turns?
- paying to much?
- hot cam instal
- 250r? powerhead
- 300ex jetting
- 400ex wont start
- powertrain
- 400ex carb. on 300ex
- simple question W.B. E-Series or R-4??
- exhaust
- Race gas or no...please help
- Who sells aftermarket head pipes seperate?
- Gas Tank Leaks...
- 250X Running rich, fouling plug
- dual stock oil coolers?
- rev box question
- 300ex Valve Adj. ?
- 440 power
- anyone run a aftermarket carb on their 300?
- 416 reliability
- 400 carb on 250r?
- 300ex Tranny problem?
- 450r vs built 416 or 440ex
- What clutch to buy
- Dynojet question...
- exhaust
- which carb is better
- ceramic or stainless steel
- need link to adjust valves
- race gas??
- what jets ina 416??
- Will I have jetting problems???
- 400ex headpipe coating?
- help with jetting my 416 please
- Best 400ex Exhaust
- axle carrier barrings
- 250r trouble
- Removed Choke
- needle?
- magura clutch
- exhaust
- Big bore kit
- Chain and skid plate problem!
- throttle response
- Just checking?
- Dial-A-Jet
- 300ex exhaust
- lrd headers loose
- Play Name This Motor!!!!!
- HEY, Burgard bearing carrier owners....look here..
- Clymer or Haynes Manuals (300EX)
- 250r motor in a 300ex frame
- jetting questions...runs alot better cold = too rich when warmed up?
- Stock chain stretched over an 1" in one ride?
- Small water hole, and 400ex smokes WHITE???
- Key switch
- no spark.... Help
- head pipe ?