RE: K&B .61
Hey Henry, did you ever think YOU were the problem? The square carb is great, easy to tune and smooth transition. If the glow plug threads are stripped, WHO DID THAT? I have been flying with multiple K&B .61 engines for 40 years. Never a dead stick, low idle, great mid-range and top end. It is an extremely reliable running engine. Instead of bad mouthing an engine because of YOUR limitations, maybe just keep your unfounded opinions to yourself! There are many who have flown with K&B engines and are very pleased with their reliability and durability.