Originally Posted by Ghost_Mutant
Ah, here is a good spot to ask a related question. I've been setting my valves to the newer spec used on the XRL: .004 & .005
I had been using the original spec of .002 & .004
Anybody else here with the older RFVC doing the valve spec upgrade?
Hey GM. For what it's worth, my machinest guy who knows these (RFVC) engines very well has always said the stock Honda clearance was too tight. I think mainly because of oiling issues but also .002 doesn't allow much for thermal expansion. And we all know these bikes have their fair share of both.