This unit starts up & runs great. After a while of use it dies out. restarts ok then after a while dies out. There are times it starts then dies out.Every time this unit starts up it goes into a high rpm then back down to normal. Following items we replaced and still having same issues. LP filter, solenoid, regulator, throttle sensors, distributor, tune up, coil. This unit has the spectrum carburation system. I'm lost my next part will be a Bomb. Anybody out there with ideas what else to look for. OH yea also check out charging system that is ok. Oil pressure switch was checked as wells as temp sender. Help!