Honda GOLDWING GL1800, Service Manual

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CLUTCH
9-4
SERVICE INFORMATION
GENERAL
• The clutch system can be serviced with the engine installed in the frame
• DOT 4 brake fluid is used for the hydraulic clutch and is referred to as clutch fluid in this section. Do not use other types
of fluid as they are not compatible.
• Spilled clutch (brake) fluid will severely damage the plastic parts and painted surfaces. It is also harmful to some rubber
parts. Be careful whenever you remove the reservoir cap; make sure the reservoir is horizontal first.
• Never allow contaminants (e.g. dirt, water) to get into an open reservoir.
• Once the hydraulic system has been opened, the system must be bled.
• Always use fresh DOT 4 brake fluid from a sealed container when servicing the system. Do not mix different types of
fluid as they may not be compatible.
• Engine oil viscosity and level and the use of oil additives have an effect on clutch disengagement. Oil additives of any
kind are specifically not recommended. When the clutch does not disengage or the motorcycle creeps with the clutch
disengaged, inspect the engine oil viscosity and level before servicing the clutch system.
SPECIFICATIONS
Unit: mm (in)
TORQUE VALUES
ITEM STANDARD SERVICE LIMIT
Specified clutch fluid DOT 4 brake fluid –
Clutch master
cylinder Cylinder I.D. 14.000 – 14.043 (0.5512 – 0.5529) 14.055 (0.5533)
Piston O.D. 13.957 – 13.984 (0.5495 – 0.5506) 13.945 (0.5490)
Clutch Clutch spring free height 4.8 (0.19) 4.6 (0.18)
Clutch lifter spring free height 2.9 (0.11) 2.5 (0.10)
Disc thickness 3.72 – 3.88 (0.146 – 0.153) 3.5 (0.14)
Plate warpage – 0.30 (0.012)
Clutch master cylinder reservoir cap
screw 2 N·m (0.2 kgf·m, 1.4 lbf·ft)
Clutch slave cylinder bleed valve 9 N·m (0.9 kgf·m, 6.5 lbf·ft)
Clutch lever pivot bolt 1 N·m (0.1 kgf·m, 0.7 lbf·ft)
Clutch lever pivot nut 6 N·m (0.6 kgf·m, 4.3 lbf·ft)
Clutch switch screw 1 N·m (0.1 kgf·m, 0.7 lbf·ft)
Clutch cruise switch screw 1 N·m (0.1 kgf·m, 0.7 lbf·ft)
Clutch master cylinder holder bolt 12 N·m (1.2 kgf·m, 9 lbf·ft)
Clutch hose oil bolt 34 N·m (3.5 kgf·m, 25 lbf·ft)
Clutch outer lock nut 186 N·m (19.0 kgf·m, 137 lbf·ft) Apply locking agent to the threads
and stake the nut.
Clutch center lock nut 127 N·m (13.0 kgf·m, 94 lbf·ft) Apply engine oil to the threads and
seating surface and stake the nut.