Gess ran 4 tanks of gas this past summer some think rings are stuck comp. is 90psi had car comp.meter is there a such as a boat comp.tester.Should I still try a decarb on the motor or not waist time how hard it is to change the pistons in this motor
Have low psi. on OMC seadrive motor around about 90psi.Johnson has 132psi but wires are dry rotted and harness but runs good .want to swap blocks to get good psi. will or can I by a cheap harness for this app.Both motors are the same year 1988 and I think the same horse power the OMC is a 1.6...
