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- Air Fuel Mixture???
- Stock Settings?39fcr
- were can you get.....
- which jets to use with this setup?
- Gas pouring outta the bottom of carb
- How good is PRO FAB ATV.
- Hooking up Kill switch
- What does a plug like this tell you?
- Review of 14 tooth VS 15 tooth
- Tc Racing Silencer
- is anyone running stock springs w/stage 2 hotcam?
- A question about Sparks adv. key
- spark arrestor in the T-4
- got my stuff from marcum?
- main jet help!!!!
- stage 1 and 2 xrcams, XR cam users need advice
- Ann E 1 have a temp guage on their 400
- air boot problems
- when is it tune up time?
- Tc Slip On With Mx Grind Cam?
- Where to get a magura?
- Chain Sizing
- A little rich maybe?
- Sprocket Q
- stock 400
- White Brothers Pipe Question Please
- white brothers cdi box??
- Sprocket Questions
- 400ex plastics on a 300ex little info
- FMF powercore pipe
- 300ex beat a 400ex?????
- White Brother Pipe Question
- White Brother E Series Pipe Question
- 39fcr
- best pipe for a 250x? whats your opinion?
- X-pump
- Please everyone read and reply.
- Bearings
- FCR ?s
- Alky on the 400ex???
- What gearing do you recommend at the Dunes?
- 416-425-440???
- Aftermarket heat shield
- xr 400 cam
- It has Been Asked..... Haven't been Happy with the Answers.
- 416 is Done, Thanks everybody
- 39fcr
- Big Problem
- thinkin about gettin 300ex fullbore plastics
- What Kit is the best
- Oversized valves ?
- Whow has removed the choke?
- front sprocket size?
- Mikuni/300EX jetting - almost got it!
- Ac Racing Atv Stand(specs)
- Dial-A-Jet
- WB cam for 300
- Grinding the head pipe
- Won't Start In Gear?
- Power Pro exhaust
- Air Filter and main Jet
- ??????????????????
- Clutch problem!!!!!!
- can you use the xr400 right case cover on 400ex?
- Im building a 416, and i have ???'s
- Problems!!!!!!!HELP
- Is there any known problems with the...
- 2-stroke mixture
- New 300ex idle questions
- dmc alien or e-series
- she sputters
- Valve lash on hotcam stage 2??
- 438??
- Sprokets?
- carb hp
- xr400 cam
- 300ex,scrambler,warrior who would win
- Thanks every body
- Just put my Yoshi on 300!
- What Cam
- R4 question
- FCR40 for $370
- what clutch perch
- 440 ex Dynos?????
- 750x in 300ex?
- LTZ440 in DirtWheels
- I dun f###ed up!
- how are you breakin in your stage 2 cam and high comp piston
- Titanium Valve Springs question
- Hi Compression Question!
- big gun jetting
- Tach and Speedo
- T4 or R4
- really fed up w/ jetting...
- What jets to use with this setup?
- Sparks Vs. Tc
- Question about my air box and The K&N filter
- Fuel types?
- were is the e-clip?????????
- Wheres the best place to buy a hotcam stage 2.
- Kick start on the 300ex? Help me out
- Air Scoops
- Got a quick question on jetting?
- 250R jetting...ESR TRX6 pipe and 38mm PWK
- FDO 473 Cost
- Im upgrading to a kickstart =)
- jetting for 416/stage 2
- Header pipe red hot?
- piston seized
- where to buy cables for FCR carbs?
- t4 pipe
- Gearing for Mx?
- NGK part numbers DR8ES vs DR8ES-L
- Color of a plug
- pipe ideas
- Hot Cams Help!!!
- 5300 ft alt jetting
- Heres one for ya!!
- Lrd 426??
- 300Ex/400Ex vs. Dirtbikes
- does anyone know
- fcr jetting
- larger intake = larger jet?
- spark plug
- sprocket ?
- Gas leaking from 400ex carb while riding
- who is runnin twist throttle on their FCR please read
- 300ex engine mods
- check out these duals!!!
- Question on RAD Valve Reeds
- Sparks X-6, Sparks Cam, Je Pistion and FCR39
- 39 Fcr
- Web Cams????
- Cold weather...
- White bros E-series?
- jetting with this 440 again... hmmm
- Clutch Help
- cooling fins
- gas pouring out of bottom of carb???
- ?engine kits?
- Fmf Pipe ???
- A question that I would like answered by a few.
- Piston and cam???
- need power advice
- cooling idea- would it work?
- t4
- 400'shard to start in cold weather
- 400ex question
- 250X Jetting Help
- How much oil do you use?
- lighting coil
- water cooling a quad, maybe. +more
- 416 w/hotcam installed : update
- Flashing spark plug caps
- Found my next motor
- Missing one tooth.
- How good is the Powerbong headder??
- does anyone really know about leaded fuel and valves?
- Has anyone got this? If so how well does it work?
- 250x fuel system
- 300ex questions
- New T-4 Quiet Core Almost ready!!!!
- Review: MotoJoe bolt on kit with WB promeg for 400ex
- 400ex: Stage 2 hot cam with stock piston ??
- Compression increase from no base, and xr head gasket
- jet coating
- Alcohol in my crf?
- Will a procircut PC headpipe fit a T-4 slip-on?
- sparks x-4 x-6
- brokeitin3 let me see your 250ex pictures. ( or ne one with a nice 250ex).
- Can I Use A Wb Headpipe For A Slip On???
- I decided
- A stupid question, but i need an answer
- woods race
- Strok'n out a 440Kit
- 3RD Gear bad: part 2
- Will a FMF header fit a Pro Circuit T4??
- 416 vs. 426
- case saver to fit 16t sprocket???
- extremeracer167 airscoops
- Compression Ratio Theory
- Which drop in cam for a 416 kit?
- Best Drop in for 416?
- what size socket for axle nut?
- valve clearence
- stroker
- Help!
- a little help!
- to lean or to rich???
- Stroker 440 - Any opinions or reviews?
- 400ex: Can not get the jug off ...
- What clutch and perch should i get after removing the parking break???
- 400ex: how to make the clutch handle a 440 kit
- 300ex
- Air/fuel Mixture ? 39fcr
- what should i use to grind the welds on the exhaust
- 400ex clutch perch which one
- ZAnyone see the KAW KFX700 V-Force in Dirt Wheels?
- Got my powerbong header today!!!
- 440 Kit or Cam & Piston
- 250r bored .080 over?
- need input
- Best Power Adder??
- how do i do this?:confused:
- XR perch
- what jet
- ok......simple Q so please respond
- need oil cooler instructions
- need oil cooler insrtuctions
- how many cc s
- Trinity Stage IV Racing Exhaust
- Reeds?
- 250r Pipe
- emgo sucks
- Pics of my top end
- 250r
- The Jetter The Better
- ? for T-4 owners for a 300
- Honda 400ex Battery
- xr650r to 400ex
- pilot screw adjustment
- wheres the pilot jet at??
- top end tear down
- port-n-polish?
- lrd pipe
- Supertrapp IDS2
- please help really quick:)
- engine mod ? for you guys who've been working on these engines for a while
- all terrain magazine
- 1991 honda 250x
- just a quick question, 400ex carb
- Pro Circuit T-4 Silencer 4 250EX?
- fcr owners please look, need help
- ADD a 250x starter to a 300...???
- removing choke
- e series info..
- Are all Curtis Sparks motors strokers?
- stock heat shield removed
- Are Curtis Sparks X-6's too loud?
- 250 stock main jet
- jetting carb
- What kind of chain and sprokets
- 300ex drop in webcam questions
- 11:1 piston swap
- porting question
- ?
- What series pilot do I need?
- Tc web site
- k&n jet kit question?
- weak battery?
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