RE: what you think, a Walbro for a Glow 4st
replace the engine,, no way,, you sure don't know Magnum 4st's,, and with my mechanical skills why should I replace an engine just because of it's Carb..
as said, the engine is strong and smooth, it's a good engine, the Carb doesn't make it a bad engine, it's 3 years old and it has only 3 gallons run threw it
I have seen Magnums run for years and years while hearing complaints about OS and Saito, I know a guy that has a Magnum 91 4st and it is 12 or 13 years old, and he flies it a lot
Jim