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4wd Vibration

This is a discussion on 4wd Vibration within the X2/X4 Transmission & Drivetrain forums, part of the Yamaha Wolverine X2 & X4 847cc SxS category; I know they SHOULD be the same diameter, but its like Timbo said, they are way different, and that makes me wonder if there is ...

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Thread: 4wd Vibration

  1. #11
    Hog Chaser Kapper's Avatar
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    I know they SHOULD be the same diameter, but its like Timbo said, they are way different, and that makes me wonder if there is a different gear ratio from front to back.

    So when you put the same size aftermarket tires on is it going to throw off the rotation, that's what made me wonder about my vibration when in 4wd.
    But, they have the large tire option from Yamaha from factory, they prob are the same diameter from front to back, Right?

  2. #12
    Lead Super Moderator MORSNO's Avatar
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    They are the same diameter, air pressure and weight in the Wolverine will change the squat of the tires if you are measuring while installed. Take your tires off and lay them against a wall and then measure the diameter...it can make a big difference for actual diameter. The factory tires are soft and squat a lot with a load on them.
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  3. #13
    Hog Chaser Kapper's Avatar
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    Sorry, but someone with the stock tires on an X2 need to measure, I'll take a picture, I have them still mounted on wheels sitting in my shed.
    The guy that mounted my Terrabites is the one that noticed the height difference in the stock ones. He also wondered how that works with the gears, because
    that is why we all try and find a spare tire that measures the same.

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    Experienced Piston Yamaha's Avatar
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    Quote Originally Posted by Kapper View Post
    Your right, it prob no big deal, but my commander didn’t have that, but my Teryx may have.
    My only input is, the stock tires, the front are larger diameter than the back, right? So when I put on the terrabytes, they are the same diameter. What happens to the gearing when in 4wd?
    The Commander had visco-lock, and I don't know the specifics behind it, but it sounds a lot like a torque convertor and will be a softer feeling 4WD. Your Wolvie has real 4WD.
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    Lead Super Moderator MORSNO's Avatar
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    Quote Originally Posted by Kapper View Post
    Sorry, but someone with the stock tires on an X2 need to measure, I'll take a picture, I have them still mounted on wheels sitting in my shed.
    The guy that mounted my Terrabites is the one that noticed the height difference in the stock ones. He also wondered how that works with the gears, because
    that is why we all try and find a spare tire that measures the same.
    Like I said, the height can vary with air pressures. Of course most stock tires run small to be light weight, but they are the same diameter with proper air pressures which you can change as needed. The gearing is also the same in both differentials, which you can verify in the service manual or your local dealer parts counter.

    Mount your new Terrabites and move on, you'll be fine.
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    My wolverine diffs rattle like crazy in 4wd and then for a lot of miles after I put it back in 2wd. My Yamaha big bear had the same setup and did the same thing until I hit around 1,000 miles on it or so. Wolverine just turned 500 miles, so Ive got a ways to go.
    MORSNO and Piston Yamaha like this.
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    Quote Originally Posted by Planetcat View Post
    My wolverine diffs rattle like crazy in 4wd and then for a lot of miles after I put it back in 2wd. My Yamaha big bear had the same setup and did the same thing until I hit around 1,000 miles on it or so. Wolverine just turned 500 miles, so Ive got a ways to go.
    You guys should hear the straight cut gears used on the Pioneer 500. The Wolverine sounds like I'm in a library compared to the Honda.
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    Pavement Princess vadencd@aol.com's Avatar
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    Lol Piston Yamaha. Aint that the gritty truth!!!!!!!
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  10. #19
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    I noticed a whirring sound and could feel in the floorboard. Not concerned because nothing sounded or felt like it was grinding or catching and it went away as soon as I took it out of 4wd. Its noticeable though so I monitored it all weekend to make sure it wasn’t getting worse. Anyone notice if it’s lessened or gotten worse with more miles?
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  11. #20
    Super Moderator MassiveOverkill's Avatar
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    I don't know why I didn't mention this when the OP posted but mine does that too, starts around 30 MPH. It's normal on pavement if that's when it's happening.
    Grizzlysituation likes this.
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