Bought a used Magnum .40 on ebay. No instructions.
1. What would be a good prop to use, mabye a 10X6?
2. Max RPM?
3. How to start. How many turns should needle valve be opened?
Thanks in advance!
Gotta Fly or Gonna Die
Here's a link to the engine on the Hobby People web site
Here's the link to the manual, it's a 237k download
Some of the relevant info
Propeller Size Recommendations XLS 40 Engine
8.5 x 6
9 x 6
9 x 7
10 x 5 - use for break-in
10 x 6
10 x 7
11 x 5
11 x 6
Ideally you want a propeller that the engine will turn in the 13,000 -
16,500 R.P.M. range on the ground, yet power the airplane sufficiently.
Starting point for high and low needles is 2.5 turns from closed