Generac Power Systems GTV99O Service Manual page 27

SECTION 4: GOVERNOR CONTROLS AND GOVERNOR
3. Adjust stop screw to maintaln 1200 RPM idle
4. slowly move speed control lever to high-speed position.
Do not exceed 4000 RPM.
Nol€: The high-speed screw may need adjusting to rcach
the speed .ontrol stop without exceeding 4000 RPM.
5. Wth the speed controljn the high-speed position, adjust
the high-speed screw io obiain the desired engine speed.
Figurc 4-5. Dynamic Govenot Adjustnent
4-3