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  1. DR350 topend rebuild (the final part...I hope :-) ) and valve(s) noise

    Hello Folks Happy New ! :-) Just finishing the final part of the 'top end ' rebuild and noticed a 'click/noise' coming from the valves. It occurs at the following points in the cycle: 1. Ignition e.g. when the piston is traveling towards TDC and both valves closed 2. Exhaust e.g when the...