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Question

I am looking to buy a used boat with a 1994 90 hp johnson on it. The seller said he had a leakdown test done with good results. What do I need to look for in compression results or anything else from the test that would raise a flag for trouble. also any ohter suggestion appreciated

Submitted: 20 days and 9 hours ago.
Category: Boat
Value: $28
Status: CLOSED
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Optional Information

Make (of engine): johnson
Year: 1994
Horsepower: 90

Already Tried:
looking to buy

Accepted Answer

That is a very good reliable engine. The leakdown test is actually much better then any compression test. IF the results of that are good, then a compression test is a waste of time. I would also inspect the gearcase fluid. Also be sure and run the engine in the water to be sure it is running correct.

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Expert: davesoutboard
Pos. Feedback: 98.8 %
Accepts: 
Answered: 11/2/2009

Marine Mechanic

marina owner for 20+years, certified Evinrude tech

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