RE: Buggy engine in boat?
ive had the same (close enough to the same) problems out of magnum aircraft engines, os engines. traxxas engines.
and on one occasion even a losi 427.
my point is, sometimes it happens. sometimes left over case slag gets in the bearings, sometimes its dirty fuel, metal shavings. defective bearings.
if the two motors were from the same batch (production line) it could have some bearing on the issue.
but hey. im not knocking you for not liking the go engines and i dont want to be taken for a guy thats like that.
the only reason i defend them is because ive had the same issues out of other motors.