Inspection Of Ignition And Spark; Inspection Of Plug Cap - TOHATSU MD 70-90C2 Service Manual

7) Inspection of Ignition and spark

· When testing, put electrode cap assuredly
to prevent direct contact with spark
tester wiring and leak of electrical
current, and perform test carefully.
· Keep flammable gas, fuel, oil away from
tester to prevent them from catching
sparks. If not using an in-line tester,
remove fuel injector connectors when
checking spark.
This test can be made without removing parts.
Disconnect plug cap 1 from spark plugs.
1.
Connect plug cap 1 to spark tester.
2.
3. Connect spark tester clip to spark plug tip electrode.
Spark Tester :
P/N. 3F3-72540-0
4. Start engine and check spark. Check spark system when
sparks are weak.
Spark Performance :
10 mm (0.4 in) or over

8) Inspection of Plug Cap

Remove the part and test it as a separate unit.
1. Disconnect plug cap from spark plug.
2. Remove plug cap from high tension cable. by twisting
counterclockwise.
3. Measure plug cap resistance. Replace if other than
specified value.
Plug Cap Resistance :
5 kΩ @20˚C (68 ˚F)
TLDI 75/90C2 2010
WARNING
1
8
8-11