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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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