I would agree on the bushings. They will hold up a while. I am using an OS 40 FP, which is the engine the LA replaced in the line. The biggest difference is the remote needle. It is at least 14 years old.

These two parts may be all you need.

http://www3.towerhobbies.com/cgi-bin...2910&search=Go


http://www3.towerhobbies.com/cgi-bin...7120&search=Go


This link will get a parts breakdown of the engine.

http://www.osengines.com/parts/exploded-views.html