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1990 johnson compression value

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07-31-2008, 08:24 AM

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1990 johnson compression value

HI, what should the compression ideally be in a 1990 johnson 2cyl 50hp motor? I'm getting 105 in both on a friends motor..
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07-31-2008, 03:54 PM	#2
A1 Outboard Senior Member Join Date: Feb 2007 Location: Pgh,Pa/Orlando/Atlanta Posts: 2,499	RE: 1990 johnson compression value There is no figure for a compression check as battery condition (cranking speed) and gauge accuracy come into play. You want all the cylinders (2 in your case) within 15% of each other. 105 on both is fine. __________________ *Home Of the Finest Rebuilt outboards* 4STROKE/2STROKE REPOWERS/ REMANUFACTURED/USED Deland Fl/West Sunbury Pa /Atlanta /Portsmouth,Va/Ft Lauderdale call toll free 1 877 9832537

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