ah ok, Merc makes some bottles of the stuff

"Clams Canino" wrote in message
link.net...
Anything over 100 is livable. Use 2 cans of power tune - and call me in
the
morning.

-W

"Chris" wrote in message
. ..
Good day,

Just wondering what kind of compression an old merc motor should have?
Also, is it possible that an engine not used for a while would need a
good
run for the rings to seat properly again and thus increase the
compression?
Relating to a 72, 80hp merc that wasn't run for likely 8 years

Cheers