Perhaps while you were busy shouting you missed the part where he said, "I need to purchase a .90 size engine and the cash is tight"? Kinda' eliminates O.S. even without consideration of the fact that O.S.' 90FX wasn't exactly free of its own gremlins which came FOC with it in the blue box until quite recently. Just do a search on RCU for the well reported problems with carburation which plagued it for an aeon.

Similarly doing preliminary research for a value engine in that class which runs reliably. Prefer to avoid Super Tigre's G90. Disappointing to hear of the problems with the GMS' quality control.