In an attempt to stop the Saito from flooding I fitted a DuBro refueller. This worked fine for 2 weeks, until today. The plunger stuck in, and hence the motor didn't start. I removed the refueller and carried on flying. At home I sprayed the assembly with an aerosol cleaning spray, and after a while the plunger popped back to its normal place.
Any advice most welcome. Was I just unlucky, and a new one will be fine