Chainsaw Repair

There has been a commercially available R/C version of the little Quadra engine available since about 1980 or so.  That was one of the first OPE based large scale engines on the market.  As the large scale market has grown, the list of gas engine mfgs has grown with it.  OPE based and purpose built large scale and giant scale engines abound.  There's also many folks out there (and here on this board) that covert various OPE engines for RC use.

Fixed the minor issue by changing four letters.