92047 is the serial number. Has an H20 motor.

This unit will idle ok, not quite what it should. When you hit the throttle, it opens up to about 1700 RPMS, and quickly falls back down to 0, cuts the lift off. While running, and when I go to hit the throttle, I spray a aerosol lubricant around the intake gasket mounting and the engine will maintain 1700 RPMS as long as there is a spray. I am going to install an intake gasket. Has anyone else run across this?