Suzuki GS500E (1989-1997) [20/221] Miles 6000 km or 12 months 1 7

Suzuki GS500E (1989-1997) [20/221] Miles 6000 km or 12 months 1 7
Every 4000 miles (6000 km) or 12 months 1-7
5.3 The pulse generator cover is secured by three bolts (arrows)
1 The engine must be completely cool for this
maintenance procedure. so let the machine sit
overnight before beginning.
2 Remove the valve cover (see Chapter 2).
Unscrew the spark plugs to allow the engine
to be turned over easier (see Section 6).
3 Unscrew the three bolts securing the pulse
generator coil cover to the right-hand side
crankcase cover (see illustration). The
engine can be rotated by using a 19 mm
spanner on the timing rotor hexagon and
turning it in a clockwise direction only.
Alternatively, place the motorcycle on its
centre stand, select a high gear and rotate the
rear wheel by hand in Its normal direction of
rotation.
4 Make a chart or sketch of all four valve
5.5c Using a feeler gauge to check the valve clearances
7 When all clearances have been measured
and chIM1ed, Identify whether the cleerarK:e on
any valve falls outside that specified. If it does,
the shim between the follower and ttlecamshaft
must be replaced with one of a thickness which
win res~ the correct cl~.
8 Shim replacement requires the use of the
Suzuki service tool (Pt. No. 09916-64510) or a
home-made equivalent which can be made
out of a piece of plate steel (see ilh8tr8tion).
positions so that a note of each clearance can
be made against the relevant valve.
5 Rotate the engine until the R. T mark on the
rotor aligns with the centre of the left-hand
pulse generator coil, and so that the notches
in the right-hand end of each camshaft face
each other (see illustratIons). At this point
insert a feeler gauge of the same thickness as
the correct valve clearance (see
Specifications) between the cam lobe base
and shim of the right-hand cylinder intake and
exhaust valves, and of the left-hand cylinder
intake valve, and check that It is a firm sliding
fit (Me IIIu8tr8tlon). If It Is not, use the feeler
gauges to obtain the exact clearance. Record
the measured clearance on the chart.
S Rotate the engine so that the timing rotor
turns through 380°, at Which point the notches
in the end of each camshaft now face away
from each other. Measure the valve clearance
of the left-hand cylinder exhaust valve using
the method described in Step 5.

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