G,day<br />I have a Johnson V4 110 HP 1977. The compressions are all 80-85PSI<br />I think that this is low, did OMC have a low compression head with this model?<br />The motor starts and runs OK and appears to have plenty of power.
A decarb may help bring up that compression. Also verify your readings with a different gage.<br />As long as they are with in 10% of each other is the main thing.
