15-07-2018, 11:40 AM
Hi, It could be a blocked jet. The jet that is accessed by removing the small brass screw on the under side. There is no need to remove the jet just the brass screw then then the first clean out with carb cleaner and an airline. The purpose of the jet is to allow a small amount of air to get past the throttle butterfly to allow the engine to slow run when this butterfly is closed.
John Mason
John Mason
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.