Hyper 21 backplate
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Join Date: Feb 2004
Location: North of the, , UNITED KINGDOM
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RE: Hyper 21 backplate
I take it you mean the Hyper 21 engine. Trust me you dont wont to go to the roto start. It needs to be modified and when it's on it'll keep throwing one way bearings. Stick to the Pullstart or get a box.