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1-20 of 31 Results
  1. Engine/EFI/Drivetrain
    Hey everyone, I recently purchased a 2009 KFX450R, and it has a low top speed. By low I mean 88km/h (55mph). My gearing is stock (14/38), and I have 20” rear tires. Just did a fresh oil change, and it has an FMF PowerCore4 full exhaust with header and a K&N air filter.
  2. General Discussion
    Lexx KFX450R Exhaust I like how it sounds just can not find it for sale for a KFX450R anywhere. If you have one what site did you get it from or a link. I don’t really want pay more then 220$-225$ Thanks.
  3. General Discussion
    Just bought this quad 3 days ago only drove it twice. Keeps back firing way too much. Its got a lexx tuning interface on with a hmf pipe and I believe stock intake with a UNI filter. I dont know how to mess with the tune thing. If somebody could show me a map or any type of directions. Also...
  4. Member Introductions
    hey everyone! So i purchased a 2008 kfx450r, the guy i bought it from only had it for a month and got sick engine was rebuilt by a shop may 2019 and i called the shop to confirm the rebuild , the day i bought it i changed the oil and it had glitter metal in the oil. should i be concerned or is...
  5. Member Introductions
    New member here. Also new to Kawasaki. Just picked up a 2008 KFX 450r and am pumped to learn more about it. Threw on a skid plate and some nerf bars so far. Plenty more to come.
  6. Engine/EFI/Drivetrain
    Hey guys. I bought an 08 Kfx450r and when I took it to the trails, it was bogging at full Throttle. As soon as I drop to 3/4 of the way, it speeds back up, then full throttle Boggs again. When I got home I ordered a flex fuel controller programmer and also cleaned the injector, changed...
  7. Engine/EFI/Drivetrain
    Will 2008 kx450f cams work in the kfx450r?
  8. Engine/EFI/Drivetrain
    I recently have ran into a problem with my kfx450r. I parked it after riding and I didn't ride it for about an hour or two. I came to start it and it wouldn't start. Then the starter started making a really bad noise and the starter had locked up. We got The starter to turn over again perfect...
  9. Member Introductions
    Hey Kawa Riders!!!! Please Help! :eek::eek::eek::eek: I just got my quad back from the shop, I had the bearings in the rear done. While it was at the shop I did the normal maintenance such as oil change, filter, and some New pads in the front. (None of this has anything to do with my issue but...
  10. For Sale / Wanted
    hello im selling some oem stock parts rear shock upper and lower aarms tie rods renthal fat bars black front outter fenders axle full exhaust may have other parts not listed
  11. Engine/EFI/Drivetrain
    I have an '08 kfx 450r that just recently started running very badly. It started when I took it to a riding place that turned out to be extremely muddy and coated the quad brown. While I was there it started to be hard to start, and bogged down when I gave it throttle every once in awhile. Since...
  12. Important Information
    hello i have and 08 set up for mx, i have been having problems with my front brakes for almost 6 months now, they will grab a littel but not what what they should be, i have bleed and replaced pads and bleed again and again and again, i have gone threw a whole bottel of fluid, no air, just...
  13. Member Introductions
    Im new to this. it took me 10 mins to find out how to post a thread lol. But i have a kfx 450r 2008. I bought off a friend after he wrecked an messed up the right front end. I fixed the front end and done all the maintance cause it was sitting about a year(brake pads,oil, spark plugs,etc.)But i...
  14. Dyno/Tuning Room
    What size socket do i need to remove the front sprocket? I dont want to end up buying a whole set for no reason. Im installing a 15t sprocket. Also, does the bent washer need to be replaced with a new one once its removed? Thanks in advance.
  15. For Sale / Wanted
    Wanting to buy fuel customs intake with the box. Just seeing whats out there. Trying to build on a budget.
  16. Important Information
    Hey, I own a KFX450r Monster edition bike that is pretty much bone stock, I was wondering APPROXIMETELY how much HP I will gain (I know there really can't be a positive answer without a dyno), after installing a DASA Classic exhaust, a fuel Commander 3 and a stage 2 hot cam? Looking around it...
  17. For Sale / Wanted
    Full wiring harness, new they are $250. Make an offer, text me if interested. 360-680-1307
  18. For Sale / Wanted
    Was about $650 new. Make an offer, text me if interested. 360-680-1307
  19. For Sale / Wanted
    Well I hate to do this but my daily driver chewed up a bearing so I need to sell this motor to rebuild my engine for my s13. It's an 09' with around 100hrs on it, changed oil every 10hrs of riding, ran perfect, no smoke, pulled hard. Will include harness and also include nice Yoshimura full...
  20. Engine/EFI/Drivetrain
    I'm looking at trading my 400ex for a Kfx450r this weekend. I've always dealt with carbs on my other 450's/400's so I was curious what the most cost effective way to go is for doing an exhaust. It already has a K&N so that's covered. What I'm not too sure on is a programmer for the EFI. I know...
1-20 of 31 Results