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1-14 of 44 Results
  1. Maintenance
    I have a 2013 Yfz 450 carbureted. Randomly today I was cruising in 3rd gear when I noticed it start to bog down and die. I kept trying to start it but it wouldn’t start. After I let it sit for 10ish minutes it fired right up so I hurried back to the truck before anything else happened. Still...
  2. Maintenance
    Customers recently acquired quad with little history on it. Full Lexx exhaust Airbox lid removed Ebay carb on it, OEM carb in box with it. Oem carb has TPS bypass mod done to it Ziptie mod Cam mod Unsure of any internal work done Quad will start right up on choke. Will idle on choke/ half...
  3. General YFZ450 & YFZ450R Discussions
    So I just got my Vortex ECU in the mail and installed it on my 2023 YFZ450r just fine. However, the issue came when I went to start the bike. When trying to start the bike cold with the Vortex ECU installed, it just cranks and cranks and eventually starts for a second but then stalls. I’ve tried...
  4. General YFZ450 & YFZ450R Discussions
    Just got a 2007 yfz450, pretty sure stator needs to be replaced, did a resistance test on it but resistance was good, around .5 to .7 ohms on both wires on the white connector, did a ac voltage test on white connector with the bike running and only got 2.5 ac volts coming out of it, is that a...
  5. General YFZ450 & YFZ450R Discussions
    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...
  6. New Member Introductions
    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...
  7. 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...
  8. 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...
  9. General YFZ450 & YFZ450R Discussions
    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.
  10. General YFZ450 & YFZ450R Discussions
    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...
  11. General YFZ450 & YFZ450R Discussions
    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.
  12. 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...
  13. New Member Introductions
    Hello, does anyone sell a cylinder head for a Yamahu YFZ450 2006?
  14. General YFZ450 & YFZ450R Discussions
    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
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