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Old March 14th, 2009, 03:37 PM
Del Coronado Del Coronado is offline
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Default Yamaha 150 Compression

I am new to large outboards. Looking to purchase a boat with a 2000 150 Hp. Yamaha. Compression tests show #1-125, #2-120, #3-125, #4-125, #5-125, #6-124. Do these numbers look good and was this a dependable engine for that year? Thanks much for any into.
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Old March 15th, 2009, 01:36 AM
EAVES EAVES is offline
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Default Re: Yamaha 150 Compression

All cyls. seem to be good at 120+ and all are pretty equal
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Old March 15th, 2009, 09:14 AM
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JB JB is offline
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Default Re: Yamaha 150 Compression

Equal is what matters most. With a <5% span you are in very good shape.
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