water pressure gauge

[tracyd3c]

Im wanting to install a water pressure gauge on my 2002 70hp 2 stroke yamaha motor. Where is the plug on the motor to take out so i can put the fitting in?

[boats.net]

Water pressure gauge is not recommended for the 60 and 70 hp 2 stroke engines, they have high volume low pressure cooling systems and will show very little water pressure on gauge. You can install water temp gauge(6Y5-83590-00-00 temp gauge and 688-83591-00-00 temp sender) using water port on block next to thermostat.
WaterPort60-70hp.JPG