Not to mention that a gallon of fuel for these little engines is quite a bit. I completely agree with Supertib about cheap engines vs. quality engines.

EITHER way, if your getting 5-8 gallons of fuel through and engine...you had some fun! And if you have taken care of an engine to the point that it actually laste 5-8 gallons, chances are that a new rod and a sleeve pinch would be enough to restore performance.