Anyone know the factory settings of the HSN and LSN on the Fire Storm. I have just rebuilt the engine, it only had 2 tanks through it before the screws came out of the backplate. Got case replaced and thought it could still do with the breakin process.

I've read the manual and it says both needls should be flush with the case, tried this and it seems to flood the engine. As the LSN is in a real awkward place I would like to set it and forget it.

At the moment the only way I get the engine to run is to use about a quarter throttle. HSN out three and a half turns, LSN out two turns (going on other engines I have). It will fire and run for about 30 seconds then go off. Also whilst it is running the rpm is quite high owing to the quarter throttle, but if I close the throttle it goes off.

Can't figure this one, an engine that runs for a short time, goes off, then will fire right back up and then run and go off etc.

Could it be that the LSN is still too rich?

Thanks