Ignition System Service Information; Ignition System Specifications - Honda Gold Wing GL1200D Shop Manual

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HONDA
~GL1200D'GL1200A
17. IGNITION SYSTEM
SERVICE INFORMATION
TROUBLESHOOTING
IGNITION COIL
TRANSISTORIZED IGNITION SYSTEM
IGNITION TIMING INSPECTION
SERVICE INFORMATION
GENERAL
17-1
17-2
17-3
17-4
17-6
• All electrical components can be inspected on the motorcycle.
• Be sure the battery is fully charged before diagnosing the ignition system.
• Current is sent through the ignition coil primary circuit by the spark unit as the pulse generator rotor tooth approaches the
- - generator tooth. When the rotor tooth just passes the generator tooth the primary circuit is broken causing the primary coil
flux field to collapse and secondary coil voltage rapidly rises, firing the spark plugs.
• The GL 1200 incorporations a new ignition system. The ignition control unit electronically varies ignition timing according
to engine speed when the transmission is in 1st through 3rd gears. When the transmission is shifted into 4th or 5th (over-
drive) gears, a gearshift sensor signals the ignition control unit to electronically very ignition timing according to carburetor
vacuum.
SPECIFICATIONS
Recommended spark plugs:
~
For cold climate
Standard
For extended
(Blow 5°C. 41°F) high speed riding
NGK
DPR7EA-9 DPR8EA-9 DPR9EA·9
ND
X22EPR·U9 X24EPR·U9 X27EPR·U9
Firing order:
Pulse generator air gap:
Ignition coil resistances
Primary coil:
Secondary coil:
Pulse generator coil resistance:
Vacuum advance
Start vacuum:
Cease vacuum:
Electrical advance
Start:
Cease:
Spark plug gap:
Ignition timing F mark:
Full advance:
0.8-0.9 mm (0.031-0.035 in)
10
0
BTDC
32°BTDC (without vacuum advance)
45°BTDC {with vacuum advance)
1-3-2-4
0.40-1.10 mm (0.016-0.043 in)
2.4-3.0 Q
20.1-27.9 KQ (with spark plug cap)
12.6-15.4 KQ (without spark plug cap)
1.1-1.3 KQ (at 20°C. 6BoF)
36-44 mmHg (1.4-1.7 in Hg)
63-77 mmHg (2.5-3.0 in Hg)
1,500-1,750 min--
I
(rpm)
2.800-3,200 min·
j
(rpm)
ID
TOOL
Special
Timing inspection plug
07999-3710001
1 7-1