hey,
I have a 90 hp mercury engine 1884. We think that it is a 6 clyinder two-stroke but we are not sure. Could someone tell me what the oil to gas ratio is? Also, to the right of the steering wheel, there is a read button, which is the horn, then the bilge pump then the lights. After that on the side there is the throttle and key place, but then their is this this swith that has a half of a cover on it. The bottom says off, then in the sheild it says run. On the keys is a straight key, that you put through a little hole on the top of the cover and it flipps the toogle to off. Someone told me that it was an atomatic greaser of oiler, but it looks like it is a two stroke. any ideas?
To determine if you have a six cylinder, count the spark plugs. 6 of them makes a six cylinder. The switch is indeed a kill switch. There were no four stroke Mercs in 1984.
this might sound rather stupid, but that would mean that it would have to be off to start the engine?
thanks,
bekah
Actually thats a very good question. I never pay any attention as my lanyard will only stay in when the switch is in one position. I assume "off" is running position as "on" would complete the circuit to ground and kill spark to the motor.
No, "ON" is up on the switch and does NOT short out the ign.
"Off" really really means OFF and DOES short out the ign.
The way it's supposed to work is, the safety lanyard is "captured" by the kill switch when the switch is up, in the "ON" or "run" position.
If by some horrific set of circumstances you were thrown from the boat, the lanyard (attached to your body or life vest) would pull free from the control box; pulling the emergency kill switch down; and this will kill the engine regardless of throttle setting or position of key switch.
HTH & Happy Boating; be safe out there................ed
mercury 90 hp '84unknown switch
Linear Mode
