Richard,

It wouldn't hurt to try a new glow plug. Don't throw the old one away, just stick it in your flight box. Your fuel could have gone bad also?

The screw near the throttle arm on the older ASP's holds the barrel inside the carb. On the new ones, The screw is not adjustable. You just tighten it down all the way. But on the old ones, you had to back off the jam nut and adjust the screw inwards until the barrel began to jam and then back it out until just where the barrel was free again. Then while holding the screw from moving, tighten the jam nut.

As far as I'm concerned there's nothing wrong with the new ASP carbs. You can get a brand new one from Horizon Hobbies or your local hobby shop. A friend just ordered one for his 61 this week. If you live in a counntry other than the US, you might want to buy your carb from Just Engines in England. BTW, the Magnum, ASP, & SC engines are all common if you stay within the same age engine. You can get magnum parts for your ASP from Hobby People.

On a few of the older carbs,the spring that holds the carb barrel towards the throttle arm was weak and the barrel would flop back and forth. I always got a stronger spring from the hardware store and no more trouble.

Enjoy,

Jim