TOHATSU MD 30B2 Service Manual page 312

O
Troubleshooting
K
Check spark plugs.
Normal?
YES
Use spark tester to check
ignition sparks.
Sparks are weak?
or no sparks?
YES
Check stop switch and main
switch key.
Normal?
YES
Check connection of plug
cap and resistance.
Normal?
YES
Check ignition coil resistance.
Go to next page.
9-16
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 and fat away from tester
to prevent them from catching sparks.
NO
Check pick up (crank
position sensor) coil
resistance and gap between
the part and encoder.
Normal?
Check fuel system and
compression pressure.
NO
Clean spark plug, or
replace.
WARNING
NO
Replace pick up (crank
position sensor) coil.
Adjust gap between the
YES
coil and encoder.
NO
Replace stop switch or
main switch key.
NO
Repair or replace plug
cap.
TLD D30/40/50B2 2013