Logo

1992 Johnson 120 no spark

After 3 weeks of not using my boat I go to run it before a planned fishing trip. Well before trying to get it to crank I remounted my ignition switch to the center console. After a few minutes of attempting to crank it, it would not crank. Primer injector was working. And I was getting fuel to the carbs. After letting completely off the advance throttle and having it in neutral the motor cranked up like it never missed a beat, this is after at least 45 minutes of me trying to get it to crank. I didn't have it on the muffs at that time so I only let run for maybe 10 seconds. Everything seemed fine. Went to crank it again and once again nothing and still to this day nothing. Heres a little history it's a 1992 Johnson 120 vj120tlend. Vro removed. I replaced the power pack, coils, plugs, and wires at the first of the year. I don't know if when I remounted the ignition if I pulled the kill switch wire loose or what but it's not firing on any cylinders but will turn over all day long. Any help would be greatly appreciated. Thanks.
 
Test the battery as no mention made of it's age and condition.----Some will argue.-----Slow cranking means there will be no spark at the plugs.----Pull starter apart for inspection as that costs zero coins.
 
Test the battery as no mention made of it's age and condition.----Some will argue.-----Slow cranking means there will be no spark at the plugs.----Pull starter apart for inspection as that costs zero coins.

Thanks for your reply. The battery is only 4 months old. It did die the first day of trying to get it to crank. Charged it up and everything is fine. I have had the Bendix replaced earlier in the year as well. Never had any problems with he starter.
 
I believe they were factory replacement although im not completely sure tho. I know they were made for my motor. I feel as if it has to be something small maybe something like the wires which I will look more into. I hadn't had any trouble all summer until now.
 
I just looked at my receipt for the wires they are Sierra wires.
:(
I've found OEM components remove a lot of doubt.

Racerone is right, a good healthy battery makes a world of difference in starting behavior.

#1 make sure your battery is good (i.e. load test). Just because it takes a charge doesn't always mean it's good.

#2 Verify spark. Purchase (or build) a spark tester. Make sure each cylinder is jumping a 7/16" gap.
 
Im pretty sure my battery is good but I'll have it tested tomorrow. I've checked for spark and im not getting it on any cylinders. I've checked the compression in the past it was good maybe need to check it again. Like I said it did crank up all of a sudden at one point. I'm wondering if I'm overlooking a faulty wire in the ignition maybe got pulled loose or something and it happened to catch that one time the motor cranked.
 
Measure and post resistance values of the plug wires.----Checked resistance of stator and sensor coils ?----Starters are easily damaged and I recommend an inspection !----Good luck with it.
 
Back
Top