My port motor is using oil and one of the mechanics at the shop told me to mix in one quart of MMO ...said a ring might be carboned up and it will loosen it up ...How a ring get carboned up at 25hrs is beyond me ....

MMO is awesome stuff, works well in gas too. There is another similar product called Kroil, its known as the oil that creeps, stuff totally unfreezes stuck stuff!! I run MMO in the oil on my bike and I am hard on it, never been into the bottom end on it tighter than a nun's c*nt. your right though, same thing on my 311 w the 502's very hard to get to the plugs..Rob

Yeah, getting to the inside banks to the plugs is all but impossible unless you have a Snap On Tool Truck sitting in your drive for all the specialty tools to do this kind of chit.

This afternoon, I'll crank them a hair just to be sure they move. If not, expect a fire.