Pilot Screw Adjustment - Honda VT750C2 Shadow Spirit Service Manual

FUEL SYSTEM
PILOT SCREW ADJUSTMENT
IDLE DROP PROCEDURE
NOTE:
• The pilot screw is factory pre-set and no 'adjust­
ment is necessary unless the pilot screw is
replaced.
• Use a tachometer with graduations of 50 rpm or
smaller that will accurately indicate 50 rpm
change,
Damage
to
the pilot
1. Turn the pilot screw clockwise until it seats
screw seat will
lightly, then back it out to specification given.
occur if the pilot
This is an initial setting prior to the final pilot
screw is tightened
screw adjustment.
against the seat.
TOOL:
Pilot screw wrench
07KMA-MS60102
Pilot screw elbow guide 07PMA-MZ20110
or
Pilot screw wrench 07MMA-MT3010B
(U.S.A. only)
Pilot screw elbow guide 07PMA-MZ2011A
(U.S.A. only)
INITIAL OPENING:
49 states/Canada type: 2 turns out
California type: 2-1/8 turns out
2. Warm up the engine to operating temperature.
Ride the motorcycle for approximately 10 min ­
utes.
3. Stop the engine and connect a tachometer
according to its manufacturer's instructions.
4. Remove the fuel tank (page 3-4) and disconnect
the PA'IR control valve vacuum hose and plug it
to keep air from entering, then connect a vacuum
pump to the PAIR control valve vacuum hose
joint.
5. Apply more than specified vacuum (page 6-28) to
the PAIR control valve vacuum hose and install
the fuel tank (page 3-4).
6. Start the engine and adjust the idle speed with
the throttle stop screw knob.
TEMPORARY IDLE SPEED: 1,200
±
100 rpm
7. Turn the pilot screw in or out slowly to obtain the
highest engine speed.
8. Lightly open the throttle 2 or 3 times, then adjust
the idle speed with the throttle stop screw knob.
9. Turn the pilot screw in gradually until the engine
speed drops by 50 rpm.
10.Turn the pilot screw out the final opening from
the position obtained in step 9. .
FINAL OPENING: 1/4 turns out
6-25
- _ . _ - - - - ­