YES, multiple times, plus oil coming out the air filter, tranny leaks, and nut backing off the compensator in the primary muliple times, and radio issues.
(just shaking my head)
an unsafe and unreliable throttle configuration
as for engine oil, i was told the engine capacity is wrong in the manual, 3 1/4 qts is right (not 4 qts, unless you like a well lubed air filter)