no spark.....1968 sportsman120

[theman9020]

hi my name is dave.....i have a 1968 sportsman120 with the 120 hp motor inboard/outboard.....i have no spark.....i have replaced the coil, cap, rotor, condenser.......the coild seems to be getting power but it is not going through to the cap.....i have replaced the new coil with another new coil thinking i bought a bad coil....but still no spark.......i am lost......any ideas.....thanks

 

[Howard Sterndrive]

Re: no spark.....1968 sportsman120

...i have replaced the coil, cap, rotor, condenser...

but not the points?

welcome

 

[theman9020]

Re: no spark.....1968 sportsman120

yes i replaced the points also.....sorry

 

[Howard Sterndrive]

Re: no spark.....1968 sportsman120

have you observed the points opening and closing while cranking the engine?
did it have spark before?

sorry it's all questions for your questions

 

[theman9020]

Re: no spark.....1968 sportsman120

yes the points are opening.........with no spark there.......

 

[CobiaXL]

Re: no spark.....1968 sportsman120

Tell us what wires and colors u have connected to coil.Ive also had bad condensers right out the box.

 

[theman9020]

Re: no spark.....1968 sportsman120

to the positive side there is a red wire and a red and white strip wire.....to the negative side there is a green wire and a brown wire.......thanks

 

[Don S]

Re: no spark.....1968 sportsman120

yes the points are opening.........with no spark there.......

Are they also closing? If they don't close completely and open, you will not get spark.

 

[theman9020]

Re: no spark.....1968 sportsman120

yes they are opening and closing.....will that keep me from getting spark from the coil also.......i just bought this boat and the previous person replaced the cap rotor resistor and points.....i will recheck the gap on the points.......but there was no spark there either.......thanks dave

 

[Howard Sterndrive]

Re: no spark.....1968 sportsman120

once you know the distributor is in fact turning, you can rotate the engine to points closed, and then use a pen or screwdriver to just flick the point arm open and it each time you open the points, that should collapse the field and a spark should be released from the secondary winding of the coil.
Need 9V+ at the + post of the coil (reference good ground or batt neg), and need a complete removal of continuity when the points open (the tachometer can cause issue there if faulty - not a bad idea to try with the grey tach wire unhooked)

 

[Don S]

Re: no spark.....1968 sportsman120

.i just bought this boat and the previous person replaced the cap rotor resistor and points.....

yes i replaced the points also.....sorry

Which is it? Doesn't matter if the previous owner replaced them, you have the problem now. Have you replaced the points since it won't start.

We aren't there to look at things like you are, if you don't give us accurate answers to our questions, don't expect our answers to help much.

 

[theman9020]

Re: no spark.....1968 sportsman120

howard......yes the distributor is turning.......i am going to buy a voltage tester tomarrow.......and also going to just replace the points and condenser......thanks for all the fast responses and info......i will see what happens tomarrow,........thanks dave

 

[theman9020]

Re: no spark.....1968 sportsman120

still no spark.....i replaced the points with new ones.....replaced condenser......points are opening and closing.....still no spark......sorry it took so long to get back here.....thanks dave