I had my motor winterized by a new mechanic last fall. When I got the bill, it just said "winterized" but they said they fogged the engine, changed the lower unit oil, Marine Stabil in the gas tank and antifreeze in the plumbing.

So here is my questions:

1. I put on the muffs today and fired her up for the first time this spring. It started right up but there was NO blue smoke at all. Nada. Shouldn't there be some blue smoke?

2. When should I change plugs? This set has one season, about 145 hours, on them.

Thanks,
Jake