Honda GL1800 Service Manual page 278

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The camshafts have the following identification

L: left cylinder camshaft (installed cam pulse rotor)

R: right cylinder camshaft

Rotate the crankshaft counterclockwise and align

Be careful not to

the 1.2 TF mark on the ignition pulse generator

jam the cam chain

rotor with the index mark in the front crankcase

and timing sprocket

on the crankshaft

when rotating the

If the other camshaft has not been serviced,

remove its cylinder head cover and check the cam-

shaft position as shown in the next step.

• If the crankshaft has not been rotated since the

camshaft was removed, it should not be neces-

sary to rotate it (i.e., it should still be in the

proper position). However, check the other cam-

shaft's position as described in the next step, to

ensure proper camshaft positioning. Then,

install the camshaft.

The timing marks on the cam sprocket must be

flush with the cylinder head surface and make sure

that the index mark "M" is facing out as shown

(rear end cam lobe is facing inward).

If the "M" mark is facing in (cannot be seen), rotate

the crankshaft counterclockwise 360° (one full turn)

and turn the "M" mark so it faces out.

CYLINDER HEAD/VALVE

DENT F CAT ON MARK

Troubleshooting