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Yamaha Star V-Max VMAX Motorcycle Discussion Forum

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  1. Rusty McNeil

    What's that allen head plug lookin' thingie

    I have stupid question. What's that allen head plug lookin' thingie right next to the sparkplug? It can't be a head bolt or it would be in the top of the piston and it looks to close to the sparkplug for there to be any water jacket right there but maybe that's what it is????
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