Airhead engine tapping
I have a 1986 R80 in pretty well stock condition (other than various spots of rust etc.).
I have noticed of late - the bike is just back from 13 years off road - that there is a tapping noise when the engine is ticking over. the noise comes from the left hand side only so I assume that something is amiss on the tappers on that side. The engine pulls well enough and seems quite sweet otherwise but I don’t remember it doing that before the long lay up.
Is this normal or something I need to investigate?
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