87 50hp Force no spark

[sh924b]

hey everyone im new to the forum so bare with me

I have purchased a 1987 force recently I have no spark in either coil when I turn the ignition on both wires on both coils are testing hotthe top coil has a blue wire(+ side) and a white (- side) wire going to it and the bottom coil has a blue wire (+ side) and a black wire (- side) as I said all four wires showing hot but when I turn the key over to start I get no fire going to the plugs the top coil was cracked so I replaced it and still no fire I have spent 300.00 on two coils and now im baffled can someone please help me out on this

 

[bevelman98]

Re: 87 50hp Force no spark

I have a 85 50hp force which had a similar problem. Although the coils both looked great so went up to the stator instead. It needed to be cleaned and a point was not set correctly. Did those two things and we had spark.

I am not sure the differences between a 85 and a 87 but that is what my problem was.

Good luck.

Although if your hot to both coils then my post means very little.

 

[sh924b]

Re: 87 50hp Force no spark

Yes I am showing hot on all four wires which is one of the things that worries me is all four wires supposed to be hot with the key in the on position

 

[john from md]

Re: 87 50hp Force no spark

When you say hot on all four wires, are you checking from each terminal to ground? If you are, you will get voltage whenever the switch is turned on.

Make sure that your points are opening and closing and that the gap is set per the book.

Next, pull the plugs. Connect one to the spark plug wire and ground the plug shell. Spin the engine and look for a blue spark.

Let us know.

John

 

[sh924b]

Re: 87 50hp Force no spark

thanks for your help I did what you said and wolah im up and running appriciate the help you all have given me on this

 

[john from md]

Re: 87 50hp Force no spark

No sweat. Pass it on when you have the opportunity.

John

 

[jerp13]

Re: 87 50hp Force no spark

When you say hot on all four wires, are you checking from each terminal to ground? If you are, you will get voltage whenever the switch is turned on.

Make sure that your points are opening and closing and that the gap is set per the book.

Next, pull the plugs. Connect one to the spark plug wire and ground the plug shell. Spin the engine and look for a blue spark.

Let us know.

John

Where are the points??? I have 87 force 50 and no spark. Changed ignition and "dead Man" switch already. no manual.

 

[jerp13]

Re: 87 50hp Force no spark

I don't no how to work this site... Ihave no spark to either plug. have changed ignition and "dead man" switch. Where are points?

 

[sh924b]

Re: 87 50hp Force no spark

it dosent have points on it its all elctronic how ever I can tell you that one if you follow what was left for me here you should resolve the issue however both coils have to work or no spark if there cracked at all they wont work and let me tell you the coils for this motor are not cheap mine ran 148.00 a peice