captainduckhead wrote: Also, you may need to trim it properly. The motor may be mounted too low. Or too high for that matter. Does it seem to be turning plenty of RPM's yet not going anywhere? Maybe it's cavitating? Make sure the cavitation plate is level with the bottom of the boat and dead center with the keel. There are quite a few factors at play and a variation in any of them can make it not perform as it should.
I thought to say that after I posted mine, but went to lunch.
Absolutely...you can really handicap an engine with incorrect trim/tilt etc....
Just for the hell of it...Clean out the plugs, spray in some carb cleaner, good gas, hard fuel ball, check trim and tilt....and run run run...
then get back to us
"I've been left for dead before but I'll still fight on, don't wait up, leave the light on, I'll be home soon"