"Hello, mr Lamb or someone who
"Hello, mr Lamb or someone who can help me.I got another issue to solve.I 'm going to connect a tacho meter to my old mercury 80HP motor, serial# 5006372(78').I purchased a matching old merc tacho meter with 3-plong connector from Ebay.When I got the tacho meter,its needle stayed at about 1500 R.P.M then I hooked it up to the control box and turn on the key(not start, run position) The needle moves up at 4500 R.P.M and then I start and run the motor ,the needle stuck all the way maximum high. What is the problem? The voltmeter reads about 12V with engine off and goes up 14V with engine running so I think rectifier is working fine.The 3 wires from 3-plong connector connected like this. The Black goes to negative post & meter housing,the white goes to light bulb post(+) and the brown goes to signal post . please help!"
"Hello, mr Lamb or someone who can help me.I got another issue to solve.I 'm going to connect a tacho meter to my old mercury 80HP motor, serial# 5006372(78').I purchased a matching old merc tacho meter with 3-plong connector from Ebay.When I got the tacho meter,its needle stayed at about 1500 R.P.M then I hooked it up to the control box and turn on the key(not start, run position) The needle moves up at 4500 R.P.M and then I start and run the motor ,the needle stuck all the way maximum high. What is the problem? The voltmeter reads about 12V with engine off and goes up 14V with engine running so I think rectifier is working fine.The 3 wires from 3-plong connector connected like this. The Black goes to negative post & meter housing,the white goes to light bulb post(+) and the brown goes to signal post . please help!"