Is a Toro 25cc weedeater engine a good one to convert with out much mods. I have a chance of getting one free. Used, but who cares.It is a 2 ring piston, which has to be better than one.
Thanks, Jay

I don't know how old it is but some of the older models were zenaoh's. i know a guy who has an old one that he bought new and is still going 21 years later

The one I have access to is a 2003 model #51938.

Sure it is a good one! The price is right is a big parameter. Your doing it a favor it probably was tired of working around the yard and ready for some fun flying.
Seriously take it, try getting it to run as is, just to know if it will try to start, and the piston moves; remove the engine and post a pic someone should be able to ID the engine. Once engine is visiable you will have a much better idea. Oftentimes a carb kit and new spark plug (gapped) are all it takes to get one running. I like to take the engine apart and clean throughly just to be sure there are no hidden problems.

I've ben itching to do the little Toro ever since I saw it at Home Depot. It looks like a good dual BB, similar to the Echo and Cub Cadet 25cc ones I did. I'm sure you'll have to replace the stock carb with a adjustable needle one. I believe the Toro has got the Stratocharge EPA-friendly kinda carb on it.

I JUST FINISHED A MONSER AND I WAS WONDERING WHAT KIND OF CARB TO GET FOR MY TORO 25CC ENGINE. ANYONE? PLEASE I NEED MORE STING FROM ENGINE. THANKS

Hi M007GUNIT,
People have the best luck using a 11mm Walbro with two needles on the 25 to 30cc weedies. It will have a 28 cast into the inlet on the venturi. The most popular is the model WA-167. I'm using the WT-324's made for weedeater. The 28 equals 28/64ths which is about 11.11mm.

Dave