Arctic Cat EL TIGRE 1980 Service Manual page 96

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Fig. 5·9
8392
2. Connect a timing light and tachometer to
the MAG-side spark-plug lead.
3. A. Using a shielded safety stand, raise th e
rear of the snowmobile off the floor and
start the engine. Gradually increase the
engine speed to 6000 rpm ; the pointer
should align with the 20 ° BTDC timing
mark on the flywheel.
B. Using a shielded safety stand, raise the
rear of the snowmobile off the floor and
start the engine. Gradually increase the
engine speed to 6000 rpm; the pointer
should align with the 27
°
BTDC timing
mark on the flywheel.
4. If timing is not correct, adjust timing.
5. A. Install CDI unit; then secure with two
bolts and washers.
90
B. Install cap and fix plate; then secure
with a bolt and lock nut.
Adjusting Ignition Timing
NOTE: Procedures designated ''A'' are for
the 5000; procedures designat ed ''B'' are
for the 6000.
1. A. Remove th e recoi I.
B. Remove th e recoil , starter pu ll ey, and
fan-drive pull ey.
2. Loosen th e two socket-head cap screws
sec uring th e stat or plat e and rotat e t he
stator plate in th e proper direct ion to attain
correct timin g.
NOTE: Rotate the stator plate clockwise
to retard the timing or cou nterclockw ise
to advance the timing. The stamped marl{s on
the stator plate at the upper socket -head cap
screw mounting hole can be used for t iming.
Fig. 5·10
28° ---~
26°
-~,,--....:~
21.0
--r+-~
2 2 ° --+4-~
20° --H-~
.l8o _ __....__
16
°
- - 1 -i--<
...+---#---4-~
+
t+----+---+- ___
__,lTC- ---
~ Flyvhcc-1
' - - 22 • BTOC
.._ 20 •
BTDC
·--1e •
BTOC
'----16 ° BTDC
0728-416
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