- Decided on plastic but need the details
- Urgent Need Help Fast!!
- PDF manual or parts blowup picture
- March Quad of the Month entry thread, 400 class quads
- XC quad pics
- '07 400ex Issue
- how much h.p. ?
- LOOK@ my 416ex with 250r Fenders!
- were to buy gaskets for my 400ex
- 440?
- Carb cleaning
- houser a arm mounting
- got some of the parts on
- Get more HP from your chain!!!
- I Can't Find The Classified Section
- Key Switch Troubles!!
- Help!!!! brakelines dont matchup right
- who is running high compression on a stock rod
- Full exhaust jet help
- Hard thumb, cramping up. HELP!!
- got a ? for ya...this is F'd up
- Someone...
- Complete A Arm Kit
- z400 hood on 400ex
- What does it take?
- Post all MX 400's
- What parts will fit a 400 from a 450r?
- Pour les quebecois et ceux qui parle francais
- stock h.p. 2004 400ex?
- Using oil but not smoking..Help!!
- alumminum airbox
- Trail Tech Vaypor
- sprockets
- hmf video
- 400ex + FRUSTRATION = giant molotov cocktail!
- pics of cut rear fenders
- Tire tube size help please
- YFZ 450 hybrid anyone?
- What Paddle Tires do you guys use?
- Pre Load??
- What Color Scheme? Need Opinions.
- spark plug
- ignition/battery/WTF?????
- 460 stroker
- Pulse Charger Exhaust Systems ?
- 440ex jetting
- 400ex front brake conversion?s
- 250r motor in 400ex frame
- Poor idle, leaking out overflow, sputtering
- Piggyback vs. Remote Rezzy vs. No Rezzy
- help 400ex nerfbars
- difference in handling???
- What would you get?
- Jetting question???
- 400ex siezed up axle bolt
- Powdercoat header pipe?
- missing just past idle
- compression
- Aftermarket header and slip on exhaust?
- HiPers Question
- hotcams
- U.m. Performance
- rebuild tips
- What nerf bars to get??
- Hotcam vs. webb cam?
- Replaced Valve seals, now smoking worse
- spark arrestor
- can someone send me a PM?
- Need Help, 440ex Motor Noise
- clutch hard to pull
- beating 450s
- CRF450X Clutch Perch w/Hotstart Lever Mod as Reverse Lever
- what to do
- does 400 ex have a rev limiter
- Monster Energy graphics kits.........
- UM full skid plate?s
- Want to buy Lonestar swingarm
- Problem going into neutral
- Alittle help...
- Frame paint...what color is it?
- 4" Spal Fan On 440ex
- Will it fit???
- 400ex staked clutch
- Lookin for woody
- Front master cylinder
- Help!! Cam Chain Tensioner...400ex
- Cdi Box
- 400EX - On/Off Switch
- carb spacer question
- front and rear racks
- how much sag
- graphics and seat
- Spark plug hard to get out
- Backfiring through carb
- jetting
- 400ex = Xr400
- custom made airbox
- Watchout 400ex'rs for the new trx250r
- not charging battery
- Flipped Quad today in snow..
- 2008 400ex: Dirtwheels test!
- Looney Tuned Exhaust
- Help!! How Do U Know If Your Tensioner Is Bad?
- Need Help and Advice Please!!
- Front Master Cylinder problem?
- fuel leak??? help
- Welcome your newest member of the 400EX club...
- stupid question
- Dang it! How do I stop my E-Series from cracking, again?!
- Help- Clutch cable bottomed out
- Question about: Clutch & Shifting
- Pro Taper Bars
- CHECK my 250R/400ex rear fenders with "MY FLAMES"
- Swingarm length
- Stage 2 Hot Cam?
- I'm one of you now....
- manual's
- Porting
- 450r shocks on 400ex?
- sound like a timing issue? help
- I have a question.
- new se pro tapers
- 440 bore kit..?
- Exhaust questions!!
- rebuild to 416ex
- spark plug boot?
- motoworks vs. whitebrothers exhaust
- My EX Buildup.
- I rode the wheels of it!
- anybody with painted body
- oversize oil tank
- 400ex yz450f hybrid
- Opinion on 450r shock settings
- 440 alky
- New 400EX Exhaust Coming this Summer!
- will 450r axle fit 400ex???
- +length clutch cable
- A-Arms
- Shorty Pipe, How do I pack it?
- New Bumper pics
- need help on 440 kit
- Need some help
- 250R wheels
- disks on WB E Series ?
- 440 wont start
- What to do next?
- 400ex racing flat track
- old 400 to new 400 conversion
- almost final product! pics 250r/416ex
- carb problems...HELP
- Need Someone with PhotoShop!
- Help Chain
- Spark Plug Splitted Color
- What do you think?
- Broken clutch carrier... GGRRRRRR!!!
- NOT happy w mrcycle.com
- Front tire options
- synthetic oil and wet clutch ?
- got me some 450r shocks!
- Exhaust shootout
- photo shop needed
- Best Online Parts Store to Buy From?
- Idle
- Thinking of selling
- houser a-arm skids?
- jetting for LRD
- New forum member, and 400ex owner!
- saftey stickers cover up
- swingarms
- carb blow back and hard to start? HELP
- 400ex cylinder
- alum airbox questions/suggestions
- Parking brake block off
- 400ex reverse
- 400ex fullbore plastics
- build up plan
- dual exhaust
- my 400ex build up!!
- New Houser A-Arms - Best Deal???
- 400ex engine problem
- Seat covers
- NEED HELP....blue smoke from 400ex...HELP!!
- Header Sizing
- oil in the air box
- air fuel mixture?
- just got a 400ex
- Flat Slide Carb?
- throttle response
- photoshop please!!
- dropped valve
- Oil in Airbox
- does anybody have pics
- It runs-But I have my Questions!
- bad idle
- jetting help
- 400 EX won't start :(
- How long are the stock shocks?
- carb question
- 400ex rebuild ?s
- rear sprockets
- Jetting change?
- Gaskets ????
- exhaust gaskets
- 440 ex, spark plug question
- Stock 400EX in Mint Condition Worth?
- 450R front hubs
- question about removing tires/wheels
- longhorn big bars?
- Anyone paint plastics?
- hmf jetting/jet needle?
- what do you guys think?
- This is probably a stupid ?...
- lights on won't start??
- Gen X atv
- Congratulations to Our March QOTM Winner (unofficial)
- Stealership
- 2003 400ex CONVERSION CHECK IT OUT!
- engine temp
- flat feeling?
- rear shock
- help me out here guys...
- Gears
- 400ex wont start just clicks
- Engine size?
- i just cut my plastics
- Clutch
- 416 on pump gas???
- Help!
- 400ex and 250r foot peg similarities
- how to get into racing
- sweet home video
- questions on xc set up
- Need a new chain which one should I get
- lexx pipes?
- bad plates or grooved basket?
- motor ticking
- rocky mountian rear hubs
- WB Cam Sprocket Slack?(vid inside)
- Simple Seat Question
- 400ex bolt pattern
- photoshop needed
- 400ex engine oil disapear
- photoshop needed
- starter sylniod?
- starter sylniod?
- starter sylniod?
- what do you think of i-shocks
- ex bigbore long term life survey here
- ex bigbore long term life survey here
- engine question