Help 70 hp 1987 yamaha overheat at low rpms
Oil breather. Thermostat. Thermo switch changed. jb welded a small leak near zinc anode at cylinder block.. Water impeller and water housing chnaged
2000 rpm or more runs good
Trolls at 850 to 900 rpms
Compression. 90 90 95
Top speed 38 mph
Buzzer...