Thunder Tiger PRO .36. I've run about 20 tanks through it so far.
I'm having trouble maintaining a low idle. It looks like there is just enough play so that the choke goes from slightly open to closed by itself.
Example: if I throttle all the way down there is a small opening. If I take a small screwdriver and wiggle the arm coming out of the carb, it has enough play to completely close the opening, killing the engine. (I didnt do this with the engine running).
We're thinking at idle, vibration may be causing it to open and close?
Instructor checked the throttle setup and said it didnt look bad. Servo rocks very slightly so I'll try tightening that.
I'll post a pic of the linkage at the carb. tonight, maybe you can see something wrong?


I also bought a tach last night.
I havent fooled around with tuning this engine at all. It flew fine from day one but now that I'm getting closer to landing I have to work on the low speed idle.
My instructor has been landing it, a little fast for him is ok but its time to get a good low idle on this. The book says 2000 rpm so I'll see tonight where I am now and then go from there...

Of course any suggestions welcome.

It looks like another rainy day. If there isnt enough sunlight for the tach to work, can you use an incandesnt bulb in front of the prop?
The tach says to use sunlight NOT a flouresent bulb shining through the spinning prop.


Steve