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    Building 81 XS400 vintage Road Racer

    Hi guys I am back and determin more than ever to build my 81 XS400 Road Racer. Anybody know if I can mill .035 off my head to boost compression without bending any valves stock comp is: 9.2 to 1
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    For Sale - 1980 yamaha XS400

    1980 yammie XS 400 new front tire new rear chain motor semi polished progressive shocks custom tan seat and tan hand grips red real sharp two into one header runs great text me for pics I do not know how to put them on this forum anthony 401.868.0274 bike in providence RI
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    High RPM idle

    Every time I stop at a red light the Mortal race to 4000 4500 RPM I figured out one cylinder if I spray carb cleaner into the back of the carburetor with a carburetor air cleaner boot it goes back to normal for about 15 seconds to 30 seconds that it starts to race again I don't understand what...
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    charging system

    I get a constant flickering on my voltmeter so I can't get a charging reading what is wrong anybody know \Ant
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    charging system XS400

    Hey were can I get a factory three way positive battery cable Antsuzook
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