Adjusting Ignition Timing - Arctic Cat 1987 AFS El Tigre Service Manual

8392
2. Connect a timing light and a tachometer to
the MAG-side spark-plug lead.
3. A. Using a shielded safety stand, ra ise the
rear of the snowmobile off the floor and
start the eng in e. Gradua ll y increase the
engine speed to 6000 rpm; the pointe r
should align with the 18 0 BTDC t iming
mark on the flywheel.
B. Using a shielded safety stand, ra ise the
rear of the snowmob ile off the floor and
start the eng ine. Gradua lly increase the
engine speed to 6000 rpm; the poi nter
shou ld al ign with the 25 0 BTDC (EI Tigre
6000 and Cheetah UC) or 24
0
BTDC
(Pantera and EI Tigre 5000) tim ing mark on
the flywhee l.
Fig. 5·14
Cougar·Cheetah FIC
IGNITI ON 'T IMING
BTOC 18 ' / 6000 ILl'.H.
IGNITI ON T IMING CHECKED liT 6000 R.P.:-1.
BTOC 2l"
BTDC 20'
RTDC 18"
OTor 16'
0726-863
_ NOTE: All timing specifications are given for
- engines at operating temperature. Before
checking timing, run the engine long enough (4·5
minutes) to reach normal operating
temperatur~ .
This is for all models.
4. If timing is not correct, adjust tim ing.
5. A. Install fan belt cover and secure with
screws and lock washers.
B. Install cap and fix plate; then secure with
a bolt and lock washer.
,
Adjusting
Ignition Timing
_ NOTE: Procedures deSignated "A" are for
- the Cougar and Cheetah F/C; procedures
designated "B" are for the EI Tigre, Pantera, and
Cheetah LlC.
1. A. Remove the reco il, starter pul ley, and fan
drive pulley.
B. Remove the recoil, starter pulley, and
water pump drive pulley.
2. Loosen the two screws securing the stator
plate and rotate the stator plate in the proper
direction to attain correct timing.
Fig. 5·15
EI Tigre 6000·Cheetah LIC
0727·107
107
I