compression test help

[steveayoub]

I am looking to buy a 97 Mariner 225 EFI w/ 190 hrs. Could anyone tell me what a comp test should read with this few hrs?<br />Thanks Steve

 

[clanton]

Re: compression test help

110 to 135 fully charged battery, throttle wide open and block warm. Variance between cylinders should not exceed 15 psi.