OS .60 FP RN
 

Help. I was attempting to carefully brake in my engine yesterday, it was relatively warm, and the engine wouldn't hold a steady needle valve setting. I think the RN contributes to this problem. Bubbles in the fuel line from the needle valve and the carb. I did add fuel tubing to the needle valve to eliminate that possible air leak area.

Question. Can I convert my engine back to a front needle valve?

Thanks,
Redcatcher

RE: OS .60 FP RN
 

You'll have to buy the older carburetor to get the front-needle version. Here's the stock number and suggested retail price:

OSMG2425 26029000 CARBURETOR #60A 60 FP $54.99

These parts can be ordered through any hobby retailer who sells O.S. Max engines and accessories.