BBrown,

what plug and fuel are you using?
Is your engine settings correct?

can you provide all this detail?

Simply saying I fly it and it dies is not very helpful. This interests me because I had a similar problem but on a GMS 2000 47 and after I retuned th motor after some "experts" in the club looked at it I found they had fiddled the low end too rich causing flooding which resulted in unburned oil turning to syrup in the engine.

After i flushed the motor out with carb cleaner (aerosol you can buy at motor spare outlets) and fiddles the settings its run reliably again.