Darin, like a previous suggestion, there may be a bit of gum in the fuel lines/carb. I would firs make sure the throttle travel is OK. If it was OK when you put the plane away, it still should be, but it would be the first place to look. Then I pull the line off the carb and also off the muffler and then blow into the muffler/vent line and make sure you have a clean fuel pickup. Just a slight blow into the vent line should result in a flow from the supply line, assuming fuel in the tank. OK there, then pull both the high speed and low speed needles and plug the line back on the carb. Blow in the vent line again and you should see fuel exiting both the high speed needle opening and the ilde opening. OK there, then replace the screws. Set the High speed a 1 1/2 turn out from closed and the idle to two turns out. This is the starting point and both settings should result in at rich setting. Go throuth the tune up, first high speed for max RPM then back off 400 RPM or so to the rich side. set the throttle as slow as it will go and keep running. At this throttle setting, lean the idle for max rpm. The go back and do the high speed again and then the low end again. You should now be able to get that engine to idle down to around 2200, and 2000 if evey thing is OK. The high end will depend on prop, but with a 14-4W APC, I get right at 10,000 RPM tops and fly at 9500RPM.

Like a couple guys said, there is nothing wrong with the Magnum engines. I also have OS, Saito, and Thunder Tiger four strokes and the biggest difference between them in like size engines is price and bragging rights.

When you say the gasket on the intake is worn off, what do you mean?? Are you talking about the manifold to head gasket? And by "worn off", I'm not following you. Please expand that explanation.

On the valves. if you use the standard US feelers, they should be loose at 0.002" and tight at 0.004" with the enging on TDC on the stroke where both valves are closed and when the engine if room temp.

Without seeing the engine first hand, my guess would be some gum in the carb, or in the tank, and a little running should clear either up.

Give us some more info and we'll get it going for you.

Don