Does corrosion only affect old motors? Are new motors corroding? What is thermal expansion and how does it steal your compression year after year through corrosion "scale" buildup? Some people are under the impression that only old engines have corrosion problems. But that would mean that over time the chemical potentials between the copper of the thermostat and the aluminum changed and obviously that doesn't happen. That is why if you've been following you saw that Suzuki with 15 hours on it th

Yamaha 60HP Outboard Compression Test

Everything You Need To Know About Outboard Compression Tests - Born Again Boating