BOMBARDIER 1982 Shop Manual page 306

SECTION 04 ELECTRICAL
SUB-SECTION 02 (IGNITION TIMING)
7. Disconnect timing instrument wire from blue wire
then reconnect it to the blue/red wire (P.T.O. side)
leading from engine. Rotate crankshaft until P.T.O.
side piston approaches top dead center. As soon as
timing marks align, timing light should fluctuate. If
necessary to adjust, proceed as follows :
• If timing is too early decrease breaker points gap to-
ward lower limit, i.e . 0.35 mm (0.016") then recheck
timing.
• If timing is too late increase breaker points gap to-
ward upper limit, i.e. 0.40 mm (,016"), then recheck
timing .
Too early: Decrease points gap
~
/
o
Too late: Increase points gap
Top dead center gauge procedure
1. Disconnect spark plug wires and remove spark plugs .
2. Remove rewind starter assembly from engine then
remove the fan protector, starting pulley and "V"
belt.
O
NaTE: The upper breaker point controls the tim-
ing of the magneto side piston and the lower
breaker point control the P.T.O. side piston.
PAGE 306
3. Rotate crankshaft until breaker points, visible through
magneto ring opening, are fully open. Adjust points
setting to 0.35 mm
±
0.05 (,014"
±
.002)) using a
feeler gauge and screwdriver, as illustrated.
Repeat procedure for other point.
Adjust both side
equally.
O NaTE: Breaker points gap can change upon tight-
ening. Always recheck after tightening.
4. Disconnect junction block at engine then connect
one lead of a timing light (flashlight type) to the blue
wire (mag . side) leading from engine. Connect other
wire to ground (metallic portion of the engine).
5. Install and adjust T .D.C. gauge on engine as follows .
• Rotate magneto clockwise until piston is just be-
fore top dead center .
• With gauge in adaptor, adjust roller so that it is
parallel with dial face. Tighten roller lock nut.