How to install Polini Gears in a BugEye Yamaha Zuma

Installing a set of Polini 13/44 gears in our 05 Yamaha Zuma.

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The 2t Bug Eye model Yamaha Zuma (2002-2011) was geared really short from the factory, so when you have a big bore kit installed, they tend to top out very quickly. These straight cut gears are a must for a big bore equipped Bug Eye Yamaha Zuma and depending on the state of tune can add up to 10mph on the top end!

You'll need access to a press, and an impact gun will help quite a bit to get the clutch off to do this install. If you don't have a press, any decent repair shop or machine shop will, and normally they don't charge much to help you out.

Also, you'll need replacement gear oil. Don't cheap out here, your new gears are straight cut instead of helical cut like the stock ones and they won't like cheap oil. You should have quality gear oil on hand for all of your bikes anyway.

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