I have an old Magnum 40 - bought from a guy getting out of the hobby. I could not get the motor started the first time I tried, then I reset it to factory settings, and got her up an running. While it is running, it seems like it runs pretty rough. For a while it would not run well with out the glow starter attached to it, then after running a bit, and tuning it started to run with out the starter, again, very rough. I found it tough to keep the engine running for a longer period of time, nor could I really get it tuned in well.

I am wondering if I am just used to my OS 46 FX which runs about as well as any motor out there and tunes really well. Could it be I need a newer glow plug?

It seems like it wants to run well, but I am just not able to find the right settings. It could also be that it is still cool up here in the North (about 0 C today when I ran the engine).

Any thought woudl be welcome.

manks