Ignition System - TOHATSU MFS 9.9 Owner's Manual

Check spark plugs.
Normal?
YES
Use spark tester to check
ignition sparks.
Are sparks OK?
YES
Check fuel system and
compression pressure.
Normal?
YES
Check connection of plug cap
and resistance.
Normal?
YES
Check ignition coil resistance.
Go to next page.
4st 9.9/15/20 2008

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 fire of explosion.
NO
Check pulsar coil resistance.
Normal?
Check stop switch and
mainswitch key.
（State 1 : Engine will not start.）
NO
Clean and adjust spark
plugs, or replace.
WARNING
NO
Replace pulser coil.
YES
NO
Replace stop switch or
main switch key.
NO
Repair or replace plug
cap.
9
9-5