Section 08
ELECTRICAL SYSTEM
Subsection 02
(IGNITION SYSTEM)
SMR2000-021_08_02A.FM
08-02-9
787 RFI and 947 Engines
1. Connect an induction-type tachometer (P/N 295
000 100) to spark plug wire.
1. Tachometer pick-up
2. Connect timing light pick-up to MAG side spark
plug wire.
1. Timing light pick-up
IMPORTANT:
To check the ignition timing on this
engine, the timing advance curve must be locked
first. This allows to perform ignition timing at
any
RPM
by keeping the timing “frozen” so that it
does not vary with engine RPM. See
Ignition Tim-
ing Adjustment
below for more information.
NOTE: Fixed Timing
function must be activated
before starting engine.
3. Start engine and rev it to 3500 RPM and point
beam of timing light straight in line with timing
mark pointer.
1. Timing light straight in line with tool slot
CAUTION:
If engine is to be run more than a
few seconds, engine must be cooled using the
flush kit.
NOTE:
If mark on PTO flywheel is perfectly align-
ed with timing mark pointer, no adjustment is re-
quired. If mark does not align with pointer, recheck
PTO flywheel mark before adjusting ignition timing
to ensure PTO flywheel has not loosen.
Ignition Timing Adjustment
717 Engine
Remove battery (GTS model).
Remove magneto housing cover and wire support.
For removal of magneto, refer to MAGNETO SYS-
TEM.
Timing is performed by moving armature plate;
clockwise to retard spark occurrence or counter-
clockwise to advance.
TYPICAL
1. To retard
2. To advance
F06H06A
1
F00H0HA
1
F06H07A
1
A25E0RA
1
2
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Содержание 2001 GS
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