I have an OLD ASP .61. When you flip the prop it feels like the glow plug is missing. It still has power when fired up. Try running fuel with a little more Castor oil in it. I know mine does not like full synthetic oils fuels.

It does not have as much power as a new 61, but mine runs great. Will idle all day long without loading up. I am running a Fox Miracle plug or an Enya #3. Have also had good lick with Thunder bolts.


Dru.