2.
Place a white chalk or paint mark on flywheel
TC
mark.
3.
Start engine and check timing. The TC on fly-
wheel should line
up
with correct timing mark
(20'BTC).
4.
If timing needs adjustment, loosen breaker box
mountings screws and move
left
to advance or
right to retard timing (when facing rear of engine).
5.
Be sure mark on flywheel lines up with correct
timing mark.
6.
Replace breaker
box
cover and any other hard-
ware removed.
3.
Lamp should
go
out just
as
points open
(20"
BTC)
and ignition occurs. Timing marks should align.
4.
If
timing needs adjustment, loosen mounting
screws on breaker
box
and move left to advance
or right
to
retard timing (when facing rear of
engine).
SPARK
PLUGS
Check, and regap spark plugs every
100
hours
of
operation (Figure
16).
Replacespark plugs that show
signs
of
fouling or electrode erosion.
Ignition Timing
-
Engine Not Running
1.
Connect a continuity test lamp set across ignition
breaker points. Touch one test prod to breaker
box
terminal to which the coil lead is connected
and touch other test prod
to
a good ground on
engine.
2.
Turn crankshaft against rotation (counterclock-
wise) until points close. Then slowly turn crank-
shaft with rotation (clockwise).
FIGURE
16.
SPARK PLUG GAP
29
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Redistribution or publication of this document
by any means, is strictly prohibited.
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