IGNITION SYSTEM
CS-2511TES
251Ts, 251TCs
15
3-2 Testing spark
1. Unhook ring (A) with screwdriver (B) or equiva-
lent and open cap cover (C).
2. Remove spark plug cap (D) from spark plug (E).
3. Connect spark plug cap (D) to spark tester
897800-79931 (F), and connect spark tester lead
(G) on spark plug (E) as shown.
4. Screw in adjuster (f1) until the needle tips con-
tact. Turn out adjuster (f1) 4 turns to set spark
tester gap (f2) to 4 mm (0.16 in).
5. Turn ignition switch to “RUN” position. Pull start-
er grip several times.
6. If spark is steady blue or white at the tester gap,
ignition system is considered good.
7. If no spark exists or spark is intermittent in
yellow, orange, or red, continue with further inspec-
tion.
WARNING DANGER
*Do not test near spark plug hole without
spark plug installed, otherwise there is a
chance to ignite fuel mixture inside cylinder.
*Do not touch metal parts of spark tester
while performing the test to avoid receiving
electrical shock.
*
Do not check spark in area where gasoline
is spilled or flammable gases may exist.
GASO
GASO
LINE
LINE
A
B
C
D
E
G
f1
f2
F