Thanks Volfy;

I had not purchased the engines yet. I was going to buy brand new weed wackers from wally world. The cost Can. is $97.00. each. Glad to hear you think the Ryobi's are a stronger engine, I am not one of those guy's who likes to overpower everything just as long it is comfortably enough. Being underpowered can cause lots of problems as well.

As far as reliability, hey they are a lot more reliable than glow, knock on wood, I have not had a dead stick on my conversions.

Thanks again Volfy, I needed to hear another opinion that was in support.