9-6
Troubleshooting
4st 4/5/6 2011
NO
YES
Normal ?
Use spark tester to check
ignition sparks.
Check igniter
and/or plug cap.
Replace spark plug
with new one.
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 and oil away from tester to
prevent them from catching sparks.
MFS4-5-6Ech09110422.qxd 11.4.22 7:00 PM ページ6