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FMVSS 116 DOT 5
you need an oxygen sensor to monitor the Air-Fuel ratio of your bike
your scooter has that extra sprint
Being a Full Circle Crankshaft
3mm Piston Rings
Athena Cylinder Kit 70cc Yamaha Zuma 50cc Vertical Controls & Accessories FMVSS 116 DOT 5The Athena Yamaha Zuma 70cc performance cylinder kit is made from cast aluminum with a nickel carbide plated bore to ensure long lasting performance for your Zuma 50. As a long time provider in aftermarket performance parts, Athena is a great choice for your big bore kit. They've been developing gaskets and crankshafts for some time, making their products unrivaled by most other companies. This Big Bore for the 1997 2001 Yamaha Zuma 50 2 Stroke will
