Grr, this problem is driving me nuts. Ihave a OS hyper 50 and Icant get the engine to run right or start at all. The glow start batteries work, I verified this by checking a brand new plug and the plug in the engine and I even tried other fully charged batteries to put in the glow starter.

On the needle valve, Iwas playing around with this, and the further I turned it out it started up and the engine was reving like crazy, so I had to pitch the fuel line to stop the engine. Iturn the needle valve back and it doesn't start at all. Ikeep priming it and nothing. My friend and I were having no problems starting it out before. I started at zero trim on the throttle and worked my way up where Iknow it started before. But when it runs great and fires righ up, other times it just doesn't do nothing. I didnt touch the mixture control screw or the valve.

My exp with this is fairly limited, and looking for someone to point me in the right direction to get my engine setup correctly and fire up right away in a nice idle without stalling or over revving like crazy.

I would appreciate any help. Thanks.