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    1997 Yamaha Zuma Engine

    1997 Yamaha Zuma
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    Athena
    2-Stroke 70cc Big Bore Kit
    $208.95
    $202.95
    You save $6.00 (3%)
    (3)
    Athena 2-Stroke 70cc Big Bore KitAthena's Big Bore Kit features a cast aluminum cylinder with a nickel carbide plated bore. All Athena kits come with a cylinder, cylinder head, piston assembly (piston
    Athena CrankshaftAthena crankshafts are a great alternative to an OEM replacement crankshaft and are manufactured to the the highest standards Actual product may vary from web image
    Athena Primary Gear SetThe primary gear set from Athena provides a higher gear ratio than stock (22%-33%) depending on the model, for more top end speed. Actual product may differ from web image

    Latest Reviews

    Davey (South Central, WI)

    Fit
    Quality
    Installation
    Recommend

    Great Deal

    2008 FZ1- Fit perfectly, no 'big glob of glue' on the end holding the magnet in. Nice black finish, we'll see if it holds up. Same exact length as stock. I'm actually kind of excited to see what it pulls out of the oil at the next interval. Cheap insurance, money well spent!

    Charles B (Fort Myers, FL)

    Fit
    Finish
    Durability
    Features
    Cost Benefit

    Big Bore Kit

    This kit has what you need to get overall better gains on both ends. I also bought the 17.5 carb and electric choke kit. After seeing the gain with big bore, decided not to install the carb as there was going to be multiple modifications that needed to be done. Stay with the Big Bore Kit although install the set of reeds to get air and fuel you need. I installed on zuma 08, you do not need the shim the block, just use the gasket, I did thread test and for mine you dont need the shim.

    Skin Thistle (Huntersville, NC)

    Fit
    Finish
    Durability
    Features
    Cost Benefit

    Athena gears

    Everything fit very nice. The gears mesh very good. Threads in very good shape. You will need a hydraulic press to change the gears.

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