1962 Evinrude Sportwin 10hp

[Kever]

Trying to get this motor running. New gas lines, took carb apart and cleaned, new gas/oil in gas tank, new gas tank line, new spark plugs. Seems to have very weak spark. Can’t get it to start. Any thoughts.

 

[Boobie]

What's the compression on it ??

 

[Swarlos]

Weak spark? Pull the flywheel and check the coils/points. Also, what Boobie said.

 

[Kever]

What's the compression on it ??

Testing tomorrow. Thank you

 

[Kever]

Will do. Thank you

 

[Kever]

Coils are shot. All broken up. Also needs new plug wires

 

[Swarlos]

It may be worth making sure it has good compression before buying new parts.

 

[timguy]

Very common. New coils needed and make sure copper core wires and twist them into the coils for good job. Great motor. I have one...1962 also....very strong for a ten horse. Compression test is very important as aforementioned. Should observe around 85 psi in 5 to 6 nice brisk pulls with both plugs out.

 

[Kever]

Very common. New coils needed and make sure copper core wires and twist them into the coils for good job. Great motor. I have one...1962 also....very strong for a ten horse. Compression test is very important as aforementioned. Should observe around 85 psi in 5 to 6 nice brisk pulls with both plugs out.

I have 80 PSI each cylinder with 5 brisk pulls. Both plugs out

 

[Kever]

80 psi each cylinder

 

[CarMech1969]

80 psi each cylinder

Sounds good to me. My '64 Evinrude 9.5 hp Sportwin had compression in the 70s if I recall right. Got it running just fine after putting new coils, points and condensers in it - and addressing the carburetion issues.

 

[timguy]

Put it on a 12 footer and go waterskiing. Good #'s.