82 Mercury 4 cycl 2 stroke Thunderblot spark issue

M

mattc

Cadet
Joined
Mar 22, 2010
Messages
8
I am not getting spark to cycl 3&4. All the reseach I have done tells me to test the stator, trigger and switch box (damaged wires also). The outboard ran great last year. The problem started when I took the boat to have the carbs rebuilt because of a gas leak. The guy that was doing the work had a major health issue and stopped working on it. I reinstalled the carbs and put everything back together which included the starter. It turns over but no spark to 3&4. 1&2 fire. This is a new outboard to me so I am lost on how to trouble shoot it. Thank you in advance for any help.
 
L

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: 82 Mercury 4 cycl 2 stroke Thunderblot spark issue

Here's the test from CDI
scan0003.jpg
 
M

mattc

Cadet
Joined
Mar 22, 2010
Messages
8
Re: 82 Mercury 4 cycl 2 stroke Thunderblot spark issue

Thank you. I will test and see what the outcome is.
 
M

mattc

Cadet
Joined
Mar 22, 2010
Messages
8
Re: 82 Mercury 4 cycl 2 stroke Thunderblot spark issue

Does anyone have good directions for pulling the flywheel and replacing the trigger?
 
O

oldman570

Lieutenant Commander
Joined
Mar 25, 2011
Messages
1,615
Re: 82 Mercury 4 cycl 2 stroke Thunderblot spark issue

The wires from the stator to the recitifier should be replaced and could cause the switchbox to go bad also. The electrical systems on the motors are very touchy when it comes to working correctly. Bad connectios, spinning the motor over without the plugs being grounded hooking battrey charger up wrong will fry switchboxes, recitifers, and other electrical parts very quickly. JMO
Oldman570
 
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