Honda B75K2-B75K3 Outboard Motors Manual., Page 8Get this manual
2CARBURETOR
AND INTAKE MANIFOLD
Throttle stop mechanism
The carburetor is provided with built-in throttle stop mechanismThis mechanism limits the throttle operation in the neutral and reverse position to avoid engine overspeedaWhen the shift lever is moved from the forward into the neutral or reverse position, the shift shaft cam turns in the direction AbWhen the throttle grip is rotated, the throttle arm is turned in the direction BWhen the shift lever is moved into the neutral or reverse position, the shift lever cam is moved toward the throttle arm stopper to limit the throttle arm movement
cThe maximum engine speed in neutral and reverse can be changed by the adjusting screw in the throttle arm
Fig3-14 Shift shaft
CamThrottle arm Adjusting screw
Fuel stop mechanism
When the female fuel connector is disconnected from the male fuel connector, the fuel stop shaft is moved in the direction by the spring and, at the same time, the carburetor fuel stop lever is moved in the direction by the fuel stop rodThis stop lever has rubber stopper which prevents fuel from flowing into the jetWhen the female fuel connector is connected to the male fuel connector, the link shaft moves away from the main jet to allow fuel to flow into the jet