how do I test for spark?

tsmith624

Recruit
Joined
Dec 10, 2008
Messages
2
The starter rope is in the cover..how do I test to see if there is spark to the plug...Mercury 4.5
 

Shizzy

Ensign
Joined
Aug 5, 2007
Messages
984
Re: how do I test for spark?

you might want to try asking in the Mercury section
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: how do I test for spark?

In most cases you can remove the spark plug and spin the engine with the palms of you hands on the flywheel and if that don't work wrap a rope around the flywheel.
 

Wee Hooker

Chief Petty Officer
Joined
Sep 11, 2005
Messages
615
Re: how do I test for spark?

You can buy a cheap inline spark tester or timing light at any automotove store. Then just insert it between the plug and plug wire and PULL. Repeat for each cyl. You'll visually see the spark if it's there. ( Also a good tool to see if you have spark break-up at different RPM's.)
 
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