Master Specifications
90-8M0065421 NOVEMBER 2012 Page 1A-3
Carburetor Specifications
Carburetor Specifications 2.5 HP
Venturi 9 mm (0.35 in.)
Throttle bore 16 mm (0.63 in.)
Main jet #65
Main nozzle I.D. 1.4 mm (0.06 in.)
Slow jet #38
Idle air jet #115
Idle speed (neutral) 1400 ± 50 RPM
Idle speed (forward) 1300 ± 50 RPM
Float level (flange to float bottom) 10 mm (0.39 in.)
Pilot (idle mixture) screw 2 ± ½ turn out
Carburetor Specifications 3.5 HP
Venturi 13 mm (0.51 in.)
Throttle bore 19 mm (0.75 in.)
Main jet #68
Main nozzle I.D. 1.8 mm (0.07 in.)
Slow jet #38
Idle air jet #115
Idle speed (neutral) 1400 ± 50 RPM
Idle speed (forward) 1300 ± 50 RPM
Float level (from carburetor flange to bottom of float) 10 mm (0.39 in.)
Pilot (idle mixture) screw 2 ± ½ turn out
Cooling System Specifications
Cooling System Specifications
Thermostat
Start to open temperature 50–54 °C (122–129 °F)
Full open temperature 60–64 °C (140–147 °F)
Valve lift 2 mm (0.079 in.)
Water pressure
Idle (at 1300 RPM) 3–7 kPa (0.4–1.0 psi)
WOT (at 5000 RPM) 40–75 kPa (5.8–10.9 psi)
To Next Page
Loading...
Need help?
General
