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what is the compression supposed to be.....

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Veronica Holley

New member
What is the compression on a 89, 50hp force outboard? Need to test compression because it got hot and needed to see If compression right before testing anything else. Just cannot find what the compression is supposed to be.
 
Compression with a good guage should be around150# But!! If the guage aint the best you need to compare the readings. It should be no more than 5-10 # difference. Too low under 100 pounds,get a different guage and test again. I know my guage is good if you know yours is too then the readings should be high.
 
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