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- 400ex wont go in reverse
- Hetricks Racing....
- Installing Hot Cam Stage 2
- 400EX motor cutting out at revs
- High compression? OK, or not?
- Best Airfilter for the sand?
- what size jet you guys run with T4 slipon?
- 300ex noise
- Quick review on the Stage 2 HotCam
- pro circuit slip on help me now
- Help A Friend With Jetting??
- Bike Idling High
- What should I do???
- ordered omf scoops but i cant get them on.....I need help
- Outerwears airbox lid
- FMF Titanium 4
- t-4 rejet for a 250ex
- 250ex question?
- what is the lift of a 400ex stock cam?
- best bangs for the bucks ?
- How to install a K&N Powerkit
- How Does the 416 kit w/ XR cam and FCR Carb Compare to a C-Dale?????
- Aftermarket Batteries for 400EX?
- 243cc...top speed
- Is it common for 400ex's engine to be a little noisy?
- need more air
- 250x wont run
- Oil cooler questions
- need help on my COOL HEAD
- open air box good or bad?
- Engine Problem..??? and question....
- Ultra Lite Battery
- slipon w/heapipe vs full system
- Yoshimira Slip On ??
- Used XR Cam
- Lrd Exhaust
- bunch of bull
- outwares and k&n???
- Anyone Please... ?
- What causes this??
- Throttle cable probs
- hey guys got a 250R silncer question u guys are usually good at this stuff
- Anyone have this profab 330 kit???
- $500 hop-up budget
- Which silencer for my 400EX?
- ???
- 300ex_jetting (quad experts needed)
- K&n power kit
- 400ex pull bar
- 300ex?????
- What slip on can i get w\out rejetting
- Blaster Question
- 300ex rev kit
- Not Again!!!
- What the Heck Happend!!!
- 440 kit
- pipes
- Rear Axle Locknuts keep Loosening!!
- Best place for DG Nerf Bar?
- A question for people who know.
- Meszaro's Motorsports Axle Nut
- 250r sputtering???
- case savor?
- 250 EX Rears.
- When to adjust valves on a 400 EX?
- 416 kit questions???????
- Is this ok to do???
- White Bros Full System
- Quiet end cap for PowerCore IV
- Leaky White Bro's
- bike specs??
- im confused!! please help
- got back from my trip to plimouth MA
- This is weird.
- White bros R4 slip on (400ex)
- NOS on a 400ex!?!?!?
- Big bore rebuild
- New cam AND piston break-in...
- 400ex got wet, now wont start
- 250 Ex Exhaust
- Kendall oil with energy release
- Stock 400 EX with no airbox lid?
- K&N jet question
- Chain Help
- Low Range Slip on
- Whats good about a new bearing carrier??
- What kind of carb?
- stumble at low throttle
- More good news from C&D Racing!!!
- Question for those who have a cr igniton on a R...
- Why not remove the spark arrester?
- Engine builders pipes websites????
- anyone else ?
- i need answers now
- What is a spark arrestor?
- cv joint
- yoshimura???
- need help fast!!!does anyone have the part# for the tapered axle bearings?
- sprockets and tire size
- sparks advance timing key
- E-series / Jetting????
- Jetting help
- I need some jetting help!
- Air/Fuel Mix Screw??
- adam sicks 426 kit
- Must See New Quad!!!
- carb problems...HELP!
- Curtis Sparks or White Brothers?? Anyone have either one?
- Best place to order in Canada?
- FST 390 big bore kit
- Terrible sound after piston/cam install...
- Terrible sound after piston/cam install...
- HMF slip on...sounds baaad!
- Piston Rings HELPPPP !!
- Oil Coolers.
- jetting problem help
- 300ex cam?
- Cheep power increase for 400EX??
- air boot problem
- what pipe/silencer u recomend for a blaster fmf,lrd,ct,pro circuit....
- What slip on produces most power!!!!
- how to brake her in
- clutch slippering problem
- installing new throttle cable
- main jet and pilliot?
- Need some help with mods
- Trick chain guide
- How to Calculate CC's?
- Ordering pro circuit T4 slipon tomorrow unless anyone says something...
- clutch plates
- Help with Results of WB cam
- eng. temp gauge?
- Digital temp guage
- Has anybody seen this thing?
- 440cc Improvement?
- keihin pilot jets
- is it too lean?
- Bigger than a 170 main on a 400ex??
- ticking sound
- what does raising the needle do?
- t-4, powercore,e-series?
- Sprocket Question
- 16t front or 36t rear sprocket descision.
- The Best Mod For High Hp Quads!!
- decompression question (for a 250x precisly)
- replacement oil cooler/res.
- fst oil cooler pic's
- Headpipe's
- W/B or Big gun
- BIG probs. with the rear!!!
- Hmf slip on??
- WB Pro Meg jetting
- How Many Disc E-Series???
- should i use a 155 or a 160 main jet?
- FST 330 big bore kit???
- need advice!!!!!!!
- whats goin on
- Drown my 400
- Power Delay
- Tripple Angle Valve Job?
- Output Shaft problem?
- cam timing
- Sweet carb mod
- doug gust's supertrapp silencer?
- problem with lifter pin
- 350x problem
- motor work?
- Should i get the HMF slip on pipe? Please help!
- 400ex FMF megamaxII exhaust question.
- white bros. rev kit for 400ex
- My Clutch
- Drowned my quad!!!!! PLEAASE HELP!
- looking for new ride
- back-up kick start
- hot cams stage 1 or 2
- First time 300EX engine rebuild.......
- What does this do? How much?
- skipping???
- How does this sound..........
- oil temperature
- 39 Fcr
- snaped a jet need help fast
- Q.R.N. 250x & 300ex mounts the same?
- For all the FCR39mm carb owners
- compression good or maybe not so good
- Hetrick racing pie
- Chain questions?
- jetting for air box mods
- Gas Additives
- New at this...help me out.......
- clutch perch
- white bros. pro meg discs
- clutch perch/lever
- Honda African Twin 750
- Valve Springs ?
- sparks advance key ,416,hotcam stage 2
- Do i rejet with the HMF slip on? Does anyone have pictuers and is it a good pipe
- marcums 416 installed
- Clutch lever ?
- 350X Engine Mounts
- 440 kit..how much hp?
- top end rebuild?????????
- K&n
- Xr600 Swap To 400ex
- removing reverse lever and p. brake
- 300ex help
- wb rev box????
- Carb/Over flow Problems
- Big Bore Installation
- Sprocket question
- what is the best sprocket setup for top speed?
- Exhaust slip-ons
- 400ex vs. Z400
- Homemade Alum. Airbox??
- Hinson clutch basket
- Um....
- yamaha, but still need help
- reverse problem
- What is the best exhaust for racing?
- 300ex question
- carbs
- Pipes
- Starting problum
- jets???
- 300ex idle prob.
- Should I switch????
- 300ex Carb Changes
- 22-12.5-9 rub
- 300ex Carb Changes
- T-4 Jetting Help...
- Just Got My 400ex
- Reason for Valve Adjustment
- Aluminum airbox
- Clutch cable
- Strange Noise In Engine
- Jeting
- Does anyone have pictures of HMF slip on? is it a good pipe??
- Just ordered HMF slip on...any suggestions
- BIg gun Race slip on Vs HMf slip on? HELP
- how do you put in air box vents?
- Get the dyno jet kit or use mikumi jets?
- front sprocket help???
- Jetting troble, possible ignition???
- Pipe Sugg.
- Pain in the @$$!
- Oil Q...
- BIg gun Race series slip on.Is it loud? for a 400ex)
- How lean is this?
- yoshimura $
- Foam airbox vents?
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