I talked with a service person about McCULLOCK engines. They do not have any parts blow -up views or manuals for the MB290. If you need a engine part...it looks like you have to get entire engine!!! I also talked about the 50cc chain SAW engine. He said the engines seem to be very good with hardly any problems. But the saw itself has many problems with plastic parts breaking and other non engine related faults. Looks like to me there will be a good chance to buy a 50cc engine for a reduced price. May be a good engine for RC? Has anyone coverted the latest 50cc McCULLOCK engines? Thanks Capt,n

funny...I saw the 50cc mac at the local menards and was wondering that myself........wish I had some extra cash!

I an going to check with the main compamy....may be able to buy a refurbished one for a lot less. I will look tomorrow more. Maybe there is some other online outlets also. Capt,n

why not buy the saw and raid it for the important parts....cylinder/crank/conrod/piston and machine up a new crankcase for it???. all these parts can be unbolted from one another. other than a new crankcase you would need a prop driver which wouldnt be hard to make. then run it on methanol/synthetic oil.

it should turn a 22-24" prop easy.

cheers
craig

happy new year to all

cheers
craig