Question about 1978 Yamaha XS 400

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387 cc engine best performance mods

I have a 387 cc engine its in a small dune buggy weight around 800 lbs i wanted to know what would be the best investment in performance mods . and are there any sites that offer any performance type parts this is a 2009 model with less than 5 hours i just plugged the model and year in below

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The best bang for the buck is a race cam. Google performance motorcycle cams and then make a couple of phone calls. There may be a cam for your engine sitting on a shelf or you just send them your cam and they re-work it and send it back. The cost is around $250 plus the cost for your local bike shop to remove and then re-install the cam. Other mods do not even begin to add power the way a hot cam will.

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Posted on Sep 30, 2009

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