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  1. EFI Quad Parts
    Stock shocks only have 30 hours of ride time on them. Buyer pays shipping and fees $350
  2. YFZ450 & YFZ450R General Talk
    I need some help with my Fox Float 3 EVOL RC2's, I have accidentally broken off the EVOL chamber air filler valve, I have tried emailing FOX about the situation with no reply, is it possible to replace the filler valve and where can I get the replacement part? Or do I have to send out the shock...
  3. YFZR-X Powertrain
    What's up guys, I know its a long shot but I'm looking for a TDC exhaust, I had 1 on my 13 yfz450r before it was stolen. I loved the exhaust and looking for another, anyone have one f/s or are they still being made???
  4. YFZ450 & YFZ450R General Talk
    Hello i am new to the forum and could use a little help tuning my tps in. My tps was running at 5.5 initially but when i set it at .680-.7 my tps is pretty close to maxxed out one way on the slotted holes as before it was slightly off center. Something doesnt seem right and my check engine light...
  5. YFZ450 & YFZ450R General Talk
    I have my old gernaded engine from my 09 yfz 450r and I was wondering what yall thought about it and if yall could give me some info/links/any input. I don't really wanna go any higher compression as mine is 12.5 and all stock besides fci intake full data exhaust and an msd blaster. I will be...
  6. YFZ450 & YFZ450R General Talk
    Whats up everyone i got a 2017 yamaha yfz450r se, the problem with my atv is sometimes when i turn it on its at a high idle and i ride but when i give it gas and let go it gets stuck for a couple seconds than it continues to idle at a high rpm, sometimes i turn it off and turn it back on and it...
  7. Maintenance
    So little different than the usual posts here, hope I'm still welcomed. I am part of a team building a racecar, and the heart of said racecar is a 2019 yfz450r engine. 100mm bore and 14:1 compression running on e85. We recently had a custom shift drum made to switch the order of the gears, it is...
  8. Parts
    Looking to buy a nice set of oem shocks. I’m new to this forum so hope I’m posting in the correct thread.
  9. Maintenance
    Hey guys I have a Yfz450r and am having trouble finding where these two wires go on the wiring harness. And I don’t know where this bracket goes. If anyone could help I’d owe you one thank you.
  10. Maintenance
    The back of the piston is raised as seen in pic. Is this normal? No damage to cylinder wall. Thanks for the help!
  11. New Member Intros
    Just bought a 2014 yfz 450r it has full dasa exhaust system with the power commander V and K&N air filter But when I’m going to turn slow in first gear the four wheeler wants to cut off but only when I’m going slow if I’m on the gas it rides good. I was just wondering if it’s the power commander...
  12. YFZ450 & YFZ450R General Talk
    My right axle/hub assy is wobbling... (hard landing) how do i determine if its the hub or the axle thats bent? If its the axle, what kind of hell am i about to get into replacing it? Thanks in advance!
  13. YFZ450 & YFZ450R General Talk
    I’m looking to buy ASV levers for my 2010 YFZ450R but I’ve been wondering whether they are universal or should I filter the search for YFZ450R because there weren’t many options when I filter.
  14. YFZ450 & YFZ450R General Talk
    I see that they have released the 2021 Raptor 90... but no Raptor 700 or YFZ... I really hope they haven’t decided to discontinue these models. My heart would be broken :/
  15. YFZ450 & YFZ450R General Talk
    Can you put 09r-20 plastics on an 04-08 yfz450.
  16. Maintenance
    The bike makes a rattle sound when I brake hard it sounds like plastic and I’m really hoping it’s not a problem can anyone tell me I think I using back brakes to hard and I never use the front someone tell me if this can also be the problem the sound sounds like a plastic rattle someone help I’m...
  17. Maintenance
    Wondering if anyone has a baffle for a 450r laying around that they would sell and ship to me?
1-18 of 25 Results