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  1. Yamaha YFZ350 Banshee (1987-Present)
    hey all, brand new to the site here! let me start off by saying this is my first two stroke i have ever owned and am mot super knowledgable with them yet. i bought a 87 banshee from a family friend a couple weeks ago. i rode it a few times and decided it needed a rejet because it it around 30...
  2. Yamaha YFM660R Raptor (2001-2005)
    Hi Folks My raptor seems to be dying at idle after being ridden very hard :s96: -under normal riding conditions it idles fine without any problems. After dying it takes a few turns of the starter for the motor to run. My initial thoughts was that it was overheating but when checking the rad-fan...
  3. Yamaha YFM350 Raptor/Warrior ('87-Present)
    Today I decided to make sure my valves where adjusted properly. They were way too tight. The exhaust valve was so tight that it never closed. So I adjusted them to specs in the manual. Now i have really bad knocking. When the piston is at the bottom of the cylinder the rocker arms can move up...
  4. Yamaha YFZ450/450R (2004-Present)
    ALRIGHT SO, I WAS PUTTING MY HEAD BACK TOGETHER,,(oops friken cabs lock!) and when i finished , one of the valves was open! i took the cam covers off and on but still no luck, it seems the lobe is pushing agaisnt the shim i think thats what its called when i tighten the cover! helpppp i have...
  5. Yamaha YFM350 Raptor/Warrior ('87-Present)
    We were out riding and I revved it up a few times and dumped the clutch. It made a loud clacking noise and died. After that it wouldn't start unless pull started. Once pull started, I pulled the clutch in and it sounds like something being knocked around in the lower end... Its the same noise in...
  6. 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?
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