Originally Posted by
keavze
thankyou for yr reply houston.
however, what i'm trying to ask about the engine lean issue is that; what damages will happen to the engine if:
you're running it too lean on the
1) LSN, 2) HSN
by the way, how will the tune be affected if there's a change of plug? example from #6 to #5 or from #5 to #6?
low speed usually equates to poor low end performance with possible temp spikes and a very high idling that pushes you through the corner .
high speed usually equates to an out of balance feel when running and and much less engine life due to low lubrication flow on throttle .