75 70hp weak spark

[Bob427]

what would cause weak spark on 75 70hp
i checked the stator and i 650 ohms
every cylinder does fire but is weak

could it be a bad power pack

thanks Bob

 

[Daviet]

Re: 75 70hp weak spark

What do you mean by weak, color, distance spark will jump, color of spark across plug?

 

[Bob427]

Re: 75 70hp weak spark

distance and yellow
not bright blue

it will barley jump and .035 plug gap

 

[Daviet]

Re: 75 70hp weak spark

Cranking RPM over 300, battery and electrical system in good shape?

 

[Bob427]

Re: 75 70hp weak spark

battery good
electrical good
and i believe cranking over 300rpm

Bob