I have a motor that according to the model # is a 93, the linkages however indicate a 91/92. Whas there a physical change in linkages? Do they look different? I am trying to get the idle and timing set correctly but I'm not sure which way to proceed. It is a replacement powerhead with my original attatchments, it came set up 91/2 but wouldn't idle in gear, I re-did it to 93 settings and it runs great (tank,muffs) I'm concerned about the timing as I don't want to blow a piston. Can I check/set the max spark advance w/o a test wheel? How do I hook up a tach?<br /><br />Sorry for the rambling post I'm rushing out to work at 0400. I want to do this right but don't have the time or $$ for a mechanic.<br /><br />Thanks in advance.
