BOMBARDIER 1980 Shop Manual page 155

With piston at specified position, slacken lower breaker
point retaining screw then readjust breaker points gap
until fluctuates or tone signal level varies.
" If timing
IS
too early decrease breaker points gap
toward lower limit, i.e. 0.30 mm (.012"), then
recheck timing.
" If timing is too late increase breaker points gap
toward upper limit, i.e. OAO mm (.016"), then
recheck timing.
O
NOTE: Breaker points gap car change upon tight-
ening. Always recheck after tightening.
EDGE GAP VERIFICATION
By following either of the procedures mentioned herein
the edge gap will automatically be adjusted, However,
if the edge gap is to be verified, proceed as follows:
e From timing marks, rotate magneto clockwise
*
of
a turn, then slowly turn magneto back counter-
clockwise until timing light fluctuates or until tone
signal sound level varies (for
640
engine type, hold
advance mechanism in full advance position).
At this point check the distance between generator
coil end and magnet (edge gap), with a strip card-
board of appropriate width. (Refer to the following
table.)
SECTION 03
SUB-SECTION 03, (IGNITION TIMING)
Engine type
377,444,
464, 503
640
o
Magnet
~
Edge gap
8 - 12 mm
(.315 - A 72")
7 - 10 mm
(.275 -394")
Edge gap
y
~
If edge gap is more of less than specified, the problem
lies within engine internal components (crankshaft out
of alignment, broken Woodruff key, loose breaker cam,
etc.). Corrective measures should be applied.
(IGNITION TIMING). PAGE 7