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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 27477
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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20 hp onan has new battery and starter but cranks over very

Customer Question

20 hp onan has new battery and starter but cranks over very hard and not near fast enough to make it start. What should I check next and how
Submitted: 1 year ago.
Category: Small Engine
Customer: replied 1 year ago.
Ground wire from battery to engine block gets warm after trying to crank it over
Expert:  Curtis B. replied 1 year ago.

How hard is engine too turn over? Can you turn it by hand?

Expert:  Curtis B. replied 1 year ago.

What is battery voltage when trying to crank?

Expert:  Curtis B. replied 1 year ago.

sounds like an engine problem and not a starter/battery problem.

Expert:  Curtis B. replied 1 year ago.

When did engine last run?

Expert:  Curtis B. replied 1 year ago.

If you remove spark plugs, does it turn faster?