Hi James,

Thanks so much for your help.
I saw the device but I do not have something, I do the template of plywood and mounted the engine in various locations will match up. Because the engine is hard you had trouble center, had to put some weight in the tail?To Rx power you used something like PowerBox or servo directly mounted receiver. What hinges did you use, the original flexible?
On your engine, you tried setting a little more rich? The engine is new? If not, we saw that a certain number of hours the engines 4stroke be corrected in the valve seats with pasta sander. It could be this one case. You can try using a system that Yamada engines with engine pressure through a nozzle directly into the fuel tank and a one-way valve pump without Perry.

Good luck,
Mugurel