Yamaha Thundercats
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Speedo drive problem

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OhNo Speedo drive problem

Post  blackcat23 on Tue Jul 26 2011, 20:53

wall Can anyone help me with my speedo problem. A couple of weeks ago the speedo tab washer had worn down, on my 96` thundercat. Took it to bike mechanic where he got me the new part and fitted it. It ran fine for about a week until i heard a rattling/grinding noise and the speedo has packed in again. Anyone know whats wrong or has the mechanic dropped a clanger somewhere.
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OhNo Re: Speedo drive problem

Post  SteveCat on Tue Jul 26 2011, 21:09

Probably the drive gear is sticking and caused the Clutch meter (tabbed washer) to break/wear down in the first place. If you can get the drive gear off the front wheel, disconnect the speedo cable and turn the gear where the tabbed washer would connect .. chances are it is turning but requires a lot of force and isn't smooth. In my experiences a replacement would be required.

The original drives are made of nylon, the newer ones from brass. I had the same problem and have gone through 2 clutch meters and the New Genuine Yamaha replacement drive lasted me 6 or so months. Thinking is the brass gear can overheat.


Welcome to the site, like to drop by the new members and post a Hi
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OhNo Re: Speedo drive problem

Post  blackcat23 on Thu Jul 28 2011, 21:21

Thanks v.much, il get these drive gears checked out. Would do it myself but havnt got any stands as im new to riding.
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