Honda C90 (1972-6v)....Valve noise ?

Runs great but tappy engine noise especially under load....eases off as you come off throttle.....just valve adjustment ? Any help much appreciated. John. (edited)


Re: Honda C90 (1972-6v)....Valve noise ?

Got quality gas in it? Spark plug clean? If the gas isn't old, maybe timing has changed?

Re: Honda C90 (1972-6v)....Valve noise ?

Beach Club Nick /

When's the last time you changed the oil? Low/old oil gives you some ticky valves

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