Quote:
Originally Posted by 911SauCy
I did assume that messing with something that isn't broken could put me in a whole new world of hurt...
I am going to double check the timing tonight and pump some premium in and see what happens... Frankly, it's been against my grain to put 87 in but the thing has the same compression as my push mower  |
Yea, but you mower never get close to 6,000 RPM.
I can promise there is some carbon buildup on the pistons and the heads. It just takes one piston or head to have a little too much and it is ping time.