Motor has run well for three seasons. Started fine after winter. Has been in driveway for 5 weeks awaiting launch while I traveled for work. Tried to start today. Motor turns over fine. Spark at all three cylinders. Fuel delivery seems ok. Only anomaly I notice is that carb flappers remain closed (choke position?) regardless of whether choke is engaged or not. When activating choke (push in key) I hear a a clicking mechanical sounding noise, but I do not see anything changing position.