I'm interested in a 19 foot bay boat with a 1996 150 Yamaha XO66, model # S150TXRU. I ran it 10 minutes and the comp. results were 105,105,100,100, 92,93. It runs fine, boat comes right out no hesitation. Ran it 900 rpms in gear today observing and it seemed pretty smooth never killed once. The engines worth about 2500.00 . My question is whether the difference in compression is enough to walk away???? Help
