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yfz 450r
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  1. YFZ450 & YFZ450R General Talk
    i have a 14 yfz450r fuel injected. ever since i installed my new exhaust and intake, it sounds like an ak-47 once i let off the throttle 🤣🤣. the back firing is crucial. not wanting to spend 800$ on a vortex. could a power commander fix the back firing?
  2. YFZ450 & YFZ450R General Talk
    Hi everyone. I am from Bulgaria and i am planning to buy a yfz 450 but here the trails are with A LOT of potholes and overall rough terrains so i was wondering if i should get the yfz or utility quad. Write some suggestions, thank you!
  3. YFZ450 & YFZ450R General Talk
    What’s the best coolant to run? Thinking about going with amsoil powersports coolant
  4. YFZ450 & YFZ450R General Talk
    Hey I was planning on getting a FMF mega bomb but didn’t want to spend a lot on a programmer would à hmf work?
  5. YFZ450 & YFZ450R General Talk
    hello I have a 2006 yfz450 that was converted to a kicker I’m trying to find someone who is selling a kickstart only harness or if there is anyone who make me one trying to get the quad ready for the season and really need to have the harness done any help would be appreciated... I also have a...
  6. Maintenance
    I bought an aftermarket wiring harness and most of the wires snap together. but there is a few that are left over, and my start/light switch on handlebars that i dont know where to plug in do i need to splice in the old connector with the new harness to fit my switch or did i get the wrong...
  7. YFZ450 & YFZ450R General Talk
    I just bought a yfz and I noticed that the front tires kick in a little, is this normal ?
  8. YFZ450 & YFZ450R General Talk
    Anyone know the difference other than looks on the rossier r4 and r5 exhaust systems?
  9. YFZ450 & YFZ450R General Talk
    So I’m going to call KB this week to put in my Big 3 order. Doing the FCI and vortex. Just stuck on which exhaust to get. Looking hard at Yoshi RS2, Rossier and barkers. Input guys?
  10. YFZ450 & YFZ450R General Talk
    I have a 2013 se and i am considering to buy a full hmf exhaust. I know i need a tuner, but i has got told the only good one is a vortex and i are not giving 700 for that. I found out you could get the ecu reflashed. Does a reflash work and will it work like a controller/powercommander?
  11. YFZ450 & YFZ450R General Talk
    I have a 2020 yfz450r and just installed the AIS delete and now my quad is showing check engine light, throwing code 37, and idling at a very high rpm in neutral. I do not have a tuner nor an exhaust. Motor has never been opened. Any ideas on how to fix this?
  12. YFZ450 & YFZ450R General Talk
    I have a 2014 yfz 450r that idles high after touching the throttle. The bike will start up and idle fine until you give it throttle, then it will rev up to between 1500 and 2500 rpms. After a few seconds the idle will come back down to normal. Any help will be appreciated
  13. Parts
    Almost brand new! Purchased this item around 4 months ago for $700 and no longer have the ATV. This product will transform your quad! Seriously it makes it run crazy hard! No more bog, no more flame outs, instantaneous throttle response, and mod ready. Fully adjustable with a screw driver. 10...
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