"Michael D" wrote in message
...
On Apr 16, 2:17 pm, "mmc" wrote:
"Michael D" wrote in message

...

Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!

A funny thing with a lot of the older 2 cycle motors is that they can run
on
1 cylinder.
I'd suggest one of
these:http://www.harborfreight.com/cpi/cta...mnumber=4424to
see
if there is spark to each cylinder They are easier to see out of direct
sunlight.
If there is spark then it's a fuel problem. Was the boating sitting for an
extended period without draining the fuel?

Thanks! I've been told that it was ran dry this fall, but it didn't
really look like it when I went up there. It's not my engine so I'm
not sure. A friend recommended that I check the fuel filter and carbs
as well....
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Good plan. If fuel oil mix sets long enough it turns into a varnish kinda
crap and gums up the works.