Bob in Tennessee
Member
My 841 is idling perfectly at all RPM ranges. The problem is rapid throttle increase causes hesitation to engine dying depending on the rapidity of increase. The carburetor is completely clean, all passages clear, no manifold leak, float set at 1/4 inch. I have adjusted main jet in 1/4 increments from one turn all the way to unscrewed repeatedly and I cannot get a satisfactory response. The Marvel has main screw at bottom of bowl.
A short history. Tractor was derelict when purchased. Bought Tisco carb kit that had faulty main nozzle. Nozzle was not drilled through. I drilled nozzle so as to have same diameter throughout shaft. Nozzle clean with correct passages. I am almost to the point of trying an aftermarket carb.
Any thought are much appreciated.