I can not figure out what this engine noise is. It comes and goes and happens at different RPM ranges. Kind of fluttering...like plastic in the air. It gets loud as I put more gas, but if I lower gas pedal enough or floor the gas pedal it goes away for a little bit. ...
The intermediate lever 54 allows for interaction between the choke lever 20 and throttle lever 50 during engine operation to hold the choke valve 18 in at least a partially open position when the throttle assembly 42 is in the high speed no load position to prevent excess fluttering of the ...
may seat against a shoulder 102 to close this leg of the Y fitting to force all of the exhaust gas around through the vaporizerheater. When wide open, valve 99 seats against shoulder 11. To prevent fluttering and pounding on its seat, this valve is inertia damped by a comparatively heavy...