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  1. YFZ450 & YFZ450R General Talk
    i want to tune my yfz450 2012 to make it faster right now it is stock any recommendations on what should i start doing to make it faster i was thinking of a power comander but only the plug and play i dont want to be plugging in my computer everytime lmao, im new to this and i really want to...
  2. New Member Intros
    Been having problems starting my 2008 YFZ450. Just got it used yesterday on a trade. Was told it needed a new battery from the previous owner which I later bought a brand new gold series battery for it after the deal. The guy did bring a jump pack with him to prove it ran and it fired right up...
  3. Maintenance
    Been having problems starting my 2008 YFZ450. Just got it used yesterday on a trade. Was told it needed a new battery from the previous owner which I later bought a brand new gold series battery for it after the deal. The guy did bring a jump pack with him to prove it ran and it fired right up...
  4. Quad Projects
    So I have 2008 yfz450 478cc pump gas piston and hot rods crank, i am wanting to make it fuel injected i know I'll need the throttle body, ecu, wiring, the new battery box, fuel pump, and grab bar but issue is I dont want to swap the plastics so I can do the different fuel tank any ideas on how...
  5. YFZ450 & YFZ450R General Talk
    Hey everyone. I have a question regarding a yfz450 2008 carb engine. Will I be able to build it into a 2014 yfz450r without needing a conversion kit for the fuel injection or anything? Please if anyone knows, let me know.
  6. YFZ450 & YFZ450R General Talk
    I have a 09 Yfz 450 and im planning on getting new a arms right now they are stock but if I were to get +2 +1 would I have to get spacers for the back axle if so how many inches? Or any tips on the best a arm sizes to run I really want to put on high clearance/long travel a arms but will I have...
  7. YFZ450 & YFZ450R General Talk
    Can I use the front wheel hubs from a 2020 YFZ450r on a 2006 YFZ450? I need wheel hubs and found a nice set from a 2020 model. Can I use them on my 2006? Any mods to make them work? Brake Rotors? Thanks for your time.
  8. Maintenance
    Hello everyone! I recently purchased a 2008 yfz450 that I noticed is leaking coolant from the weep hole at a decent rate. I found the leak and noticed it pretty early. Was curious what all is recommended to change when I plan to have the water pump opened up to rebuild? I was planning to...
  9. New Member Intros
    Hello, does anyone sell a cylinder head for a Yamahu YFZ450 2006?
  10. YFZ450 & YFZ450R General Talk
    Just got my quad back from being fixed, had a new wiring harness out on it started and then I took the spark plug out and put a new one in and wouldn’t turn on checked for spark and there was nothing. What should I try
  11. YFZ450 & YFZ450R General Talk
    I just bought a yfz450 I’m told it has 14.5 compression and he ran it on vp c45, I’m new to quads but read that c45 has a motor octane of 108. What other gas can I be using that’s common to find. Do I just need to find 108 octane gas or what will all work. I mostly just ride trails.Also it has a...
  12. YFZ450 & YFZ450R General Talk
    05 yfz electric start button only Worked when I put it in 1st gear and didn’t work in neutral now doesn’t work at all.please help!
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