'90 evinrude 25 hp no spark

Badhen

Cadet
Joined
Aug 11, 2007
Messages
14
As I was picking up decoys yesterday, a cord wrapped around my prop and stalled the motor. Cord snapped and there is no remaining line is around prop. when I tried to start the motor again, there was no starting the motor again. I had to call a buddy to tow me back to the ramp. After making sure it wasn't a fuel or spark plug issue, I put a meter up to the spark plug wires, and when I pulled the rope, it registered .28 volts. It stayed at that reading after pulling the leads off, and has not lowered from that .28 reading. I just can't figure out why the sudden stop would effect my electrical system. any ideas as to what might have happened or what I should try testing before I go out and buy new stuff?
 

pn

Petty Officer 1st Class
Joined
Apr 20, 2013
Messages
374
Re: '90 evinrude 25 hp no spark

take a look at all your electrical connections to make sure they're tight/clean including grounds, also kill switch circuit, good luck.
 

jasper60103

Commander
Joined
Sep 18, 2008
Messages
2,055
Re: '90 evinrude 25 hp no spark

Get yourself a spark tester from a autoparts store. Good luck.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: '90 evinrude 25 hp no spark

And set the spark tester at 7/16".
 

Badhen

Cadet
Joined
Aug 11, 2007
Messages
14
Re: '90 evinrude 25 hp no spark

I will pick one up in the morning. Is there another way to diagnose the problem without spending the $, or will this tester tell me where the problem is located at?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,269
Re: '90 evinrude 25 hp no spark

You can do an ohm test on the charge coil and sensor coil without taking the flywheel off.----If those test good then take a real close look at all the wiring and the kill circuit.-----Hard to believe that the powerpack would fail from the dynamic halt.-------Buying new stuff without proper testing can get expensive.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: '90 evinrude 25 hp no spark

The tester will tell you if you have decent spark or not. They sell in parts houses for around $8.00.
 

Fleetwin

Lieutenant Junior Grade
Joined
Nov 23, 2011
Messages
1,141
Re: '90 evinrude 25 hp no spark

If the engine stopped abruptly, you may have sheared the flywheel key.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: '90 evinrude 25 hp no spark

The motor can still have spark with a sheared flywheel key. Just will be out of time.
 
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