ORIGINAL: airborne14830
I'm thinking about removing the baffle inside the muffler to see if that would help. I am geeting nowhere with this one. one great right side up turn it over and it dies during transition.
Wouldn't removing the baffle act to make things worst? In that now you have no tank pressure helping to keep fuel flow consistent at all attitudes?
BTW: I'm having the same problem.
As far as I can tell the engine is flooding whenever the piston is head down.
I had a Pitts muffler on an NX 1.00 and could NOT get this (albeit NEW) engine tuned. After 3-4 tanks of fuel through it, no matter what I do it will quit when inverted and the glow plug ignitor is removed.
I then removed the Pitts, installed the standard muffler and remounted the engine sideways.
The engine seemed to run fine this way, except that when I took a bank turn, effectively pushing the engine head downward/inverted, I got the same result. DEADSTICK.
Now I haven't done a long tuning session since I remounted the engine and restored the included muffler (that will come next) but thus far I've also gone no where.
Two other Evolution engines I have, a PTS .455 and a .46 both run flawlessly with the included mufflers and in any position.