vibration about 25-30 mph
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vibration about 25-30 mph

This is a discussion on vibration about 25-30 mph within the Transmission & Drivetrain forums, part of the Yamaha Wolverine Gen 1 708 cc SxS category; vibration about 25-30 mph shakes engine and cvt housing shaking starts at 7-8 secs in the video...

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Thread: vibration about 25-30 mph

  1. #1
    Sunday Driver
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    vibration about 25-30 mph

    vibration about 25-30 mph
    shakes engine and cvt housing
    shaking starts at 7-8 secs in the video



  2. #2
    Engineer TINKEN's Avatar
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    Might have a weight stuck in cvt sheave. Have you had it apart since purchase?

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    Sunday Driver
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    yes i have had it apart to install weights in the wet clutch.
    that was at 200 miles and now it has 700 miles
    I'm running 27x10x14 all corners

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    Super Moderator FordTruckMan's Avatar
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    Some things to narrow it down...
    Run it in High and Low gear, see if it shakes at the same speed. Rev the engine smoothly from idle in neutral and see if it shakes at specific rpm. This will at least tell you what part of the system to look next. If it shakes at the same speed in both gears, it is likely the tires/wheels. If you rev it in neutral and it does not shake, it is not likely a weight stuck or anything like that in the sheaves, it is likely something on the driven side of things, like wheels/tires.

  6. #5
    Sunday Driver
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    I can't get it to do it in Lowe gear only high.
    In neutral I can rev it up and it won't do it either. I'm going to take the belt cover off tonight. Will you keep posted

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    Administrator Flyer's Avatar
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    Maybe something has come loose on the driveline?

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  8. #7
    Gear Grinder Bert's Avatar
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    What about that nut that holds the wet clutch on.
    Arizona Wolvarine: 2016 blue r spec. SuperATV 2" lift .. JBS X-sheave. Slugged. Stock tires . Home made stereo box over head. Home made splash guards. LUCUS 10-40 synthetic wet clutch blend oil.

  9. #8
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    Ok guys
    I jacked the rear end off the ground and gave it some gas in high to spin the tires 8-10 mph.
    The problem is the rear tires.
    I changed the wheels and tire back to stock and everything is fine.
    The driver rear must have a broken belt.
    The pass rear has some wobble but nothing like the driver rear.
    All is well now.
    Guess I will be in the market for some new tires.
    Thank you everyone for your help
    MORSNO likes this.

  10. #9
    Gear Grinder Bert's Avatar
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    That's easy fix. I like my stock 2.0s. Most people don't. But they are little soft in the hard bank turns at high speeds.
    Arizona Wolvarine: 2016 blue r spec. SuperATV 2" lift .. JBS X-sheave. Slugged. Stock tires . Home made stereo box over head. Home made splash guards. LUCUS 10-40 synthetic wet clutch blend oil.

  11. #10
    Super Moderator FordTruckMan's Avatar
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    Nice troubleshooting. Glad you figured it out. Check out the wheel and tire discussions, there is a good chunk of info there about different tires.

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