Carburetor Synchronization - Honda Hawk GT NT650 1988 Service Manual

MAINTENANCE
REAR CYLINDER
Rotate the flywheel counterclockwise to align the "RT" mark
with the index notch on the left crankcase cover. Make sure
the piston is at TDC on the compression stroke and the cam
lobes are all facing down.
Inspect and adjust the valve clearance using the same method
as for the front cylinder.
Install the front and rear cylinder head covers.
Apply molybdenum disulfide grease to the threads of the
timing and crankcase hole caps, then install and tighten them.
(1) CAM LOBES
(2) "RT" MARK
NOTE
IDLE SPEED: 1,200 ± 100 rpm
(1) VACUUM GAUGE
~)
JOINT PLUG (PIN: 16124-MBO-000)
.
~:---...........
07404-0030000 or
M937B-021-XXXXX
TOOL:
Vacuum gauge
Vacuum gauge set
Warm up the engine and adjust the idle speed with the throttle
stop screw.
Connect the vacuum gauge tube and vacuum gauge.
FRONT CYLINDER:
Remove the plug from the front cylinder intake port and install
the vacuum gauge adaptor.
TORQUE:
Timing hole cap:
10 N'm (1.0 kg-m, 7.2 ft-Ibl
Crankshaft hole cap:
15 N'm (1.5 kg-m. 11 ft-Ibl
Perform this maintenance with the engine at normal operat-
ing temperature. the transmission in neutral. and the motor-
cycle on its center stand.
REAR CYLINDER:
Remove the plug from the rear cylinder intake port and install
the joint plug (PIN: 16124- MBO-OOO).
If the engine must be running to do some work, make sure the
area is well-ventilated. Never run the engine
in
an enclosed
area.
The exhaust contains poisonous carbon monoxide gas that may
cause loss of consciousness and lead to death.
CARBURETOR SYNCHRONIZATION
Remove the rear fuel tank mounting bolt first. then remove the
front side (page 4-3). Carefully raise the tank and support it in
the frame using a suitable base.
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