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  1. Headlight dead.. Kinda

    Yamaha YFZ450/450R (2004-Present)
    Hey guys! ive got a 2005 bill balance edition, i parked it almost a year ago and have recently started working on it again to sell it. I had the bright idea to smoke the headlights so they've been out for a while, im just getting them back in and they wont turn on... ive tested the relays and...
  2. 2004 YFZ 450 Burning CDI after 10 minutes

    Yamaha YFZ450/450R (2004-Present)
    I have reached my wits end on what to do regarding my CDI box. I have a 2004 YFZ 450 that I am working to get back in running condition to sell and continue having an issue with the CDI box. I have replaced the CDI box several times in the past month while making minor changes to the electrical...
  3. missing coolant overflow cap

    Yamaha Wolverine 350 / 450
    hello, i am missing my coolant overflow cap for my 2007 wolverine 450. I was trying to find the diagram of the assembly to order it but can't find it anywhere. I know the grizzly and raptor are in the oil tank assembly but that doesn't seem to apply for the wolverine....can anyone help me out...
  4. Oil in air filter & air box, wolverine running fine but won't rev high

    Yamaha Wolverine 350 / 450
    We were out riding today and my buddy was riding my 2007 Wolverine 450. It was running fine and then all the sudden it wouldn't rev high at all. It lost all power when given throttle in gear but did not stall. It has no acceleration and won't go fast at all. It just bogs back down when you try...
  5. Wolverine 450 stalling when first started

    Yamaha Wolverine 350 / 450
    I have an 07 Wolverine 450 with 800ish miles . It runs great except when its first started. I have to leave the choke half on for a good 5 minutes after i start it to it bogs down and just stalls out. once it gets warmed up it will start no problem without the choke....maybe its fine? i just...
  6. 04 yfz carb problems

    Yamaha YFZ450/450R (2004-Present)
    I recently bought all new internals for my 04 yfz450 carb. New gaskets, rejeted, new diaphragms, springs, the whole 9 yards. When I put it back together and put it on my yfz, as soon as the yfz starts it revs to high rpms and dies. I have no idea what could be happening I have rebuilt carbs in...
  7. YFZ 450 Pro Bike Never Raced

    ATVs for Sale
    Spared no expense, Race Ready This a YFZ 450, This quad was built to run the pro am production class, however it was only built to be used as a backup. The bike has never been raced. I had the quad custom built by BBM company in Illinois. Its a stock frame with a full gusset kit and powder...
  8. YFZ450 Parts!

    Parts for Sale
    2005 YFZ White gusseted frame. $200 shipped Gas tank $30 shipped Stock Swingarm with carrier,disc,sprocket,axle. $175 shipped Stock steering stem black $50 shipped Renthal bars $25 shipped. Radiator and fan $40 shipped. All of these parts are located in CT. I normally arnt on the computer so...
  9. What would the best year(s) of yfz 450's to get?

    Other Sales
    i am somewhat new to the quad world, right now im driving a '87 mojave that my cousin gave to me that he raced a little while, its pretty awsome. Btw if anyone knows where to get some swing arm bushings and a rear axle racing spocket please tell me, need some. But anyways, to get to the main...
  10. 2005 Yamaha YFZ450R SE for sale

    ATVs for Sale
    I have a 2005 Yamaha YFZ450 SE for sale.This is one of the cleanest quads i have ever seen,it has no cracks or major imperfections.This machine includes DG front bumper,DG exhaust,DG nerf bars(not shown),beedlock simulation wheels,new tires,and new battery.This quad looks immaculate and runs...
  11. need help 2006 yfz450 water pump breather hose

    Yamaha YFZ450/450R (2004-Present)
    I cant figure out why the quad is leaking coolant out of the water pump breather hose..... some 2006's dont even have the breather hose and i cant figure out why it keeps leaking after a quick warm up ride...any comments or suggestions?
  12. Has anyone done the Exhaust Cam Mod and had to change it back ?

    Yamaha YFZ450/450R (2004-Present)
    Has anyone done the Exhaust Cam Mod and had to change it back because it would stall out at idle ? Or for any othre reason? I discussed this mod with a mechanic at my local Yamaha Dealership and he acted unaware of it ???
  13. yfz 450 problem

    Yamaha YFZ450/450R (2004-Present)
    Im gonna trade my snowmobile for a 2007 yamaha yfz 450 SE, and he said it runs but has oil getiing into the air filter? what could cause this?
  14. 1st post - what do you think of this 450? (56k beware)

    Yamaha YFZ450/450R (2004-Present)
    Hey guys - I'm new here and have recently been looking into purchasing a used 450. Ive seen a couple on craigslist, ebay, etc, and then saw one locally and they've really sparked my interest. I've been riding dirt bikes since I was about 12, but I've always wanted a quad. The local 450...