2002 Raptor 660 Issues
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Thread: 2002 Raptor 660 Issues

  1. #1
    Stock, ready to MOD Rays_Raptor660's Avatar
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    2002 Raptor 660 Issues

    Hey guys I am new to the forums and am having issues with my raptor so I thought I would jump on here to see if anyone could help me out. I've got a 2002 Yamaha Raptor 660 that seems to be having issues at 3/4 to Full Throttle. After first getting this thing with leaky carbs and a less than sub-par idle, the idle is now perfect and the carbs no longer leak!
    However it is having a stumbling issue at 3/4 to full throttle. It somewhat mimics that of a rev limiter but it clearly isn't near redline. After much tinkering and research I pinned the possible culprit to be the parking brake... The bullet connector that connects up near the clutch lever is especially odd in this case because when it is disconnected the bike runs like absolute garbage, probably worse than it ran when I first got it.
    I have seen some threads on this issue saying that you can splice the wires and ground them but would there be any way to bypass the parking brake completely (if that is even the true issue)?
    To anyone who takes the time out to give me a few tips, thank you in advance from a newbie!

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    Check this thread below out. But, Its probably your reverse hanging up. Follow the reverse switch down to the trans and you will see a little lever. See if you can move it more in the disengage direction. You probably need a new reverse switch cable.

    https://www.moddedraptor.com/communit...pb-sensor.html

    Coop we miss you brother..

  3. #3
    Bolt-on Beginner QuadManiac's Avatar
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    Unplug the connector leading to the parking brake switch - green/yellow wire in a bullet connector behind the left headlight. This will eliminate the PB switch from causing any vibration related RPM limiting... if you still have the problem, this obviously was not the cause.

    I suspect it's dirty carb related.
    '01 660
    CT exhaust
    K&N Billet
    Burgard +2+1 Arms
    YFZ 450 shocks
    LSR +2 Anti-vibe stem
    Pro Taper bars

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  5. #4
    Stock, ready to MOD Limited_660R's Avatar
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    ^^ I removed my PB a loonngg time ago and cut the perch off.. no issues. also sounds air/fuel related to me too.. IMO

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    Any update?

    Coop we miss you brother..

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