Hoping someone has the same motor as me, Im not sure what the correct start up sequence is for this model. My F50 has a choke, a prime start and a fast idle lever. I thought the point of the prime start was to replace the choke, yet mine has both. I was thinking that someone added an after market choke, but looking at the parts list it does have a prime assembly and a choke lever. Do these both act together during startup? To make things even more confusing my mechanic is telling me to pump the throttle 3 times when its cold to prime the carbs with fuel and to lift the fast idle lever to enrich it even more.