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evinrude tracker 1990 150hp pro, new coils, new power module, new wires, still no spark

F

FLstraycat2001

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no spark, what should i check out now. i am not sure how to check the stater or the timer trigger.... any ideas would help this literally little old lady from okeechobee florida gettting her fishing boat running ... speck season is coming. HELP
 
Load test battery.-------Take starter apart for inspection / cleaning.----Checked kill switch ?-----Did this issue develop suddenly ?----How did it run last week ?
 
sorta ran but not strong, rough or missing ,not sure.... needed new coils or wires when tested.. did those, now nothing, no spark, new power pack, no spark.... i am trying to buy a new larger battery but tractor supply just canceled my order, no explanaton.. so i guess i will try auto parts store tomorrow.. small town i live in. someone said might be stater or trming trigger or something i am not familiar with. am using a new battery but smaller one from older pontoon. thanks for the suggesttions. i will let the guy that is helping me know. i try to learn to take care of my own stuff. have 1998 pontoon with 50 hp that i have managed to keep running on my own for all these years. this engine is just alot bigger... it is a project boat i picked up fro $800. the engine was running before i put new parts in so i guess i will go from there. make sure i did it all right.
 
Start with a new battery.----I do not know what you know or do not know.----A bad battery or too small a battery may result in slow cranking.-----That is one reason for a " no spark " condition.-----Best to do a compression test before buying more parts.----Post your numbers.
 
thank you racerone. I am going to town today to try to find one at an auto parts store. they have plenty of the smaller batteries as i just bought one for the old pontoon but having trouble with a larger battery. i appreciate all you do to help people like me. i love learning as i have with my smaller yamaha. I may be older but not dead yet. Thanks again and have a great day.
 
If it ran before you replaced parts it should still run or start. Coils rarely fail unless cracked or fire damaged. That motor has the "butterfly pack" which is know for problems.
 
FLstraycat2001 said:
it was the kill switch connector at the engine. runs like a champ. thank you ever so much. you are my heros.
Click to expand...

Curious... What does the above mean? What is a kill switch connector? If you're saying that disconnecting the black/yellow wire (kill circuit) at the powerpack resulted in the engine having spark once again... are you aware of what that indicates?
 
no i do knot know what that indicates. i know it needs a new ignition wire harness thing.... but walked away from engine for a few hours. now no spark again. and yes the kill circuit i guess is what it is called, thank you... it was on the opposite side of the power pack it was black and yellow wires into a connector below flywheel on opposite side of engine as power pack
 
no i do knot know what that indicates. i know it needs a new ignition wire harness and switch but had to order it not here yet.... but walked away from engine for a few hours. now no spark again. and yes the kill circuit i guess is what it is called, thank you... it was on the opposite side from the power pack it was black and yellow wires into a connector below flywheel on opposite side of engine as power pack
 
That 150hp model, drawing on memory, has one powerpack, but does not incorporate a shift cut-off switch at the shift linkage where the linkage is attached near the bottom of the intake manifold.

I don't recall if that powerpack has just one black/yellow wire leading from it... or two... (I'm sure another member can fill that in).

If just one... that would lead to one of the "M" terminals of the ignition switch... and if disconnecting that black/yellow wire at the powerpack results in a strong spark... but no spark with it connected... that indicates a internally shorted ignition switch.

However, it could also indicate a shorted harness wire (black/yellow) leading from the pack to the ignition switch. To check the ignition switch, simply connect the black/yellow wire to the powerpack... then disconnect it from the ignition switch. With this test, if no spark with the powerpack connected to the black/yellow wire, but good spark with it disconnected from that wire, the wire itself would be shorted as the ignition switch is out of the circuit.

You say you walked away from engine for a few hours. now no spark again...... If initially you had no spark, then all you did was to disconnect that black/yellow wire (nothing else) and suddenly you had the spark back... yes, that indicates either a shorted ignition switch of the black/yellow wire itself.

If, when you walked away for a few hours... and if you left that black/yellow wire disconnected, there would be nothing to affect the ignition circuit. The spark should still have existed. Am I missing anything... something possibly left unsaid?

Note that the ignition is self sustaining as per the older magneto models so no battery voltage is applied to the ignition system... not intentionally anyway.

What is the present situation... actions, findings?
 
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Maybe the connector is shorting internally on the pack side....and by moving it, you temporarily got spark again. This can be checked with a multimeter on ohms scale. Disconnect battery and put on R x 1. Put one lead to ground, and the other to your black/yellow wire receptical or pin.....depending on which side of the connector you wish to test. Then start wiggling stuff and see if the meter shows any continuity. If you get continuity on the connector side leading to the ignition switch....then, as Mr. Reeves discussed, it could be in the wiring back to the control, the ignition switch itself, or a tether switch....if applicable. Just always be careful to never allow power to enter the black/yellow wire during this testing. If power gets back to the pack, it will likely damage it and you will have more expense.
 
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the battery is new. putting on charger to start with full charge once again. also the stator is new. =... going to put timer trigger on from a friends motor that we know works .... will keep you posted. my neighbor who is helping me is gonna go through your suggestions today. again will keep you posted. thank you.
 
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