Message
my local RV group is totally
worthless ("I find the carnauba wax doesn't show fingerprints as much
as the....")(except Mike!) the on-field mechanics are sick of me
coming by.
LOL!
OK, here's my guess- do you possibly have a crack in one of your
exhaust pipes, probably near the cylinder, or perhaps a bad gasket?
I've hear this story plenty of times on 2-smoke engines, but I would
expect it to be worse on those due to the tuned exhaust. Often times
the crack is almost invisible, and pretty well sealed until the pipes
really heat up, then it opens up enough to cause problems.
What
kind of problems? How would a [small enough to be hard to detect]
exhaust leak cause such a massive power failure? What kind of failure
might that be? At 2100 rpm the plane is just barely capable of level
flight.
Good
luck,
Rusty
(no need to wax 20 year old primer)