Hey guys, I'm the friend acerc is referring to. I'll give you a little more information:
First of all, as stated, I have a Magnum FS-120. It will only run at idle with the glow igniter attached. It runs well at around 1/2 throttle and higher, but below that, will die. At the lower RPM's, when the igniter is removed, is when the RPM's increase. I've tried opening the low speed needle until it was too rich and would load up quickly. I leaned it up until it was too lean to run at idle. Right in between is where it runs best, but again, with the igniter attached. There is no happy medium without it.
I agree with both Cobra1 and jeffie8696. That's the only thing that made since as to why it would speed up. However, it won't keep running unless I'm at 1/2 throttle or higher. I have considered running with an On Board Glow, turning on under 1/2 throttle, but I'd rather fix the problem instead.
So, with that said, does anyone have any other suggestions?
By the way, thanks Ace for getting this started!