Suzuki VL1500K5 Supplementary Service Manual page 117

116 VL1500K5 ('05-MODEL)
• Connect one of the vacuum balancer gauge hose 2 to the
vacuum nipple on the No. 1 throttle body.
# 09913-13121: Vacuum balancer gauge
• Connect a tachometer.
• Start up the engine and keep it running at 1 000 r/min by turn-
ing throttle stop screw 3.
# 09900-25008: Multi-circuit tester set
• Turn the air screw 4 of the gauge so that the vacuum acting
on the tube of that hose will bring the steel ball 5 in the tube
to the center line 6.
NOTE:
The vacuum gauge is positioned approx. 45° from the horizontal
level.
• After making sure that the steel ball stays steady at the center
line, disconnect the hose from the No.1 throttle body vacuum
nipple and connect the next hose to this vacuum nipple.
• Turn air screw to bring the other steel ball 7 to the center
line.
The balancer gauge is now ready for use in balancing the throt-
tle valves.