TOHATSU MD 30B2 Service Manual page 319

Check spark plugs.
Normal?
YES
Use spark tester to check
ignition sparks.
Spark weak?
No spark?
YES
Check stop switch and main
switch key.
Normal?
YES
Check connection of plug cap
and resistance.
Normal?
YES
Check ignition coil resistance.
Normal?
YES
Check ECU.
TLD D30/40/50B2 2013
Ignition System
· When testing, put electrode cap assuredly to prevent
direct contact with spark tester wiring and leak of
electrical current.
· Keep flammable gas, fuel, oil away from tester to
prevent them from catching sparks.
NO
Check pick up
(crank position sensor)
coil resistance.
Normal?
Check fuel system and
compression pressure.
NO
Clean spark plugs, or
replace.
WARNING
NO
Replace pick up coil.
Adjust gap between the
coil and encoder.
YES
NO
Replace stop switch or
main switch key.
NO
Repair or replace plug
cap.
NO
Replace ignition coil.
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