38racing wrote:The honda gx160 (5.5 hp) I had on my racing kart had the crank gear pressed on and in fact it was practice to pull it and turn slightly to change valve timing. One guy actually had a laser cut tool to turn it without removing it. Is it possible in the lockup that that gear may have turned on the crank enough to throw the valve/piston timing off enough to cause this problem?
nevadawalrus wrote:Pull the valve cover off, bring piston to TDC between exhaust and intake strokes. Rotate crank back and forth a little at TDC and you should see the rockers working both valves. At true TDC between these two strokes, both valves should be just a tick open. If they are then valve timing is correct. This is the easy way to check valve timing on any small engine. On flatheads the head would need to be removed to watch the valve tops, for this OHV the valve cover comes off to watch the rockers.
bobodu wrote:Way too much already invested for a 130 buck engine...
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