AD Boivin 2002 Snow Hawk, Service Manual

Page: 35 / 173

FUEL SYSTEM 3 - 13
Start the engine and let it warm up. Set the idling speed (1650
RPM ± 200) by turning the idle screw clockwise to increase the
speed, and counter-clockwise to decrease the speed.
The final idle adjustment must be the same, within ½ turn of the
initial position (1.9 mm).
l
NOTICE:
During this adjustment, the idle screws of both carburetors must
be screwed or unscrewed the same number of turns.
Adjustment of the idle mixture screw
Turn mixture screw clockwise until it just closed, then open 1.5
turns.
Turn the mixture screw clockwise for a richer mixture, and
counter-clockwise for a leaner mixture.
FUEL PUMP
REMOVAL
Install a hose pinch clamp (P/N 529 0099 00) on the fuel feeding
line near the pump inlet
1. Hose pinch clamp (P/N 529 0099 00)
Disconnect the fuel outlet hose(s).
1. Intake
2. Outlets
3. Vacuum
Disconnect the vacuum hose.
Remove the screws and nuts holding the pump.
Air screw
Idle screw