BOMBARDIER 1982 Shop Manual page 311

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To adjust, remove rewind starter assembly and starter
pulley.
Loosen the armature plate screws, move the plate in the
appropriate direction.
Tighten armature plate screws.
_ CAUTION: Make sure armature plate screws are
.... well secured .
Reassemble starter pulley and assembly.
Recheck engine timing (make sure engine is cold).
454,464 ENGINE TYPE
Two methods are detailed in this section, the first using
a Top dead center gauge, the second using a Strobos-
copic timing light.
Top dead center gauge verification
Remove spark plugs.
Remove inspection plug on magneto housing.
Mag side spark
plug hole
Piston at (0.99")
2.52 mm BTDC
Install dial indicator in magneto side spark plug hole .
Bring magneto side piston to top dead center.
SECTION 04 ELECTRICAL
SUB-SECTION 02 (IGNITION TIMING)
Back-off (rotate counter-clockwise) piston to 2.52 mm
(0.99") before top dead center. Look through inspec-
tion hole and check if flywheel and magneto housing
timing marks align. Marks should align when piston is
within specified tolerances 2.52 mm
±
0.25 (0.99"
±
(0.010") BTDC.
If the marks do not correspond to the specifications,
scribe a new mark on the magneto housing.
Stroboscopic timing light
Marks should
align
O
NOTE: Timing can be checked using a strobosco-
pic timing light (Electro Specialty 978, Snap-On
MT 215 or equivalent). The ignition components are af-
fected by temperature variation, therefore, timing must
be checked when engine is cold.
Remove the timing inspection plug on magneto hous-
ing.
Connect timing light pick-up to magneto side spark plug
lead (on manual start models use a separate battery to
supply timing light).
+
WARNING: Place ski tips against a wall, raise rear
of vehicle on a stand so that track does not con-
tact the ground. Make sure no one passes behind the
vehicle while engine is running. Keep clear of track and
other moving parts.
o
NOTE: Turn headlamp "on" when checking timing .
Start engine and point timing light straight into inspec-
tion hole.
Timing
inspection
hole
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