Ok Merc issues

[spareparts]

alarm circut is tan with a blue stripe, just ground the tan/blue wire with the key on and it should sound the alarm. Tan wire is for the guage. If you have the time, replace the alarm sensor in the head, make sure you clean out the hole it came out of, you never know just how old that sensor is. You can check the sensor with an ohm meter and a pot of hot water on the stove, just hook the ohm meter leads to each wire, put the meter on Ohm or diode check, drop it int hte water making sure the wires don't touch or come in contact with anything that will conduct, turn the stove on adn wait for the connection to be mae, check the temp with a thermometer

[macojoe]

Thanks Spare, I don't think there is even a alarm horn installed in the boat? That is the day BS had to bring me to the hosiptal and he put the controlls and stuff in all by himself.
He was in NH this week end so I try to get him on the phone tomorrow.

[chumbucket]

You want I should bring a gun?

[macojoe]

if you want, but i rather you bring your hands to help with a few things! How about Tuesday??

[macojoe]

Ok I looked up the SS# and it seems that my motor is a 1985, not 1987 like I thought it was, just incase this makes a difference.

[chumbucket]

Originally Posted by macojoe

if you want, but i rather you bring your hands to help with a few things! How about Tuesday??

I'd rather bring the gun.

[spareparts]

find the alarm under the dash, it should have a purple wire(key on power) hooked to one side, make sure it has 12 v when you turn the key on, then it should have a tan/blue wire hooked to the other lead, when grounded out, this wire comepletes the circut, sounding the alarm. You can make one using any kind of 12 volt, l,ow amperage, horn or buzzer, seen people use seat belt buzzers before, just make sure its loud enough for you to hear it while underway, and always check the circut by grounding out the wire back at the sensor, with the key on, to check the alarm. If you feel real adventurious, you can hook a red light to the alarm as well and mount it in the dash to give you a visual warning as well, just wire it in parallel with the alarm

[chumbucket]

Like I told you over the phone. Stop fixating on the temp problem! Worry about that later. The sputtering of the motor is not related to the motor running hot at low RPMs. The sputtering, bogging, cutting out (whatever you want to call it) only happened at higher RPMs when the motor is running at it's coolest. The problem never materialized at trolling speeds. You either have a fuel problem with the pump or something in the the carbs like a blocked jet. If not, then it's electrical.
For all your worrying about the higher temps at trolling speed, that motor ran at trolling speed for close to five hours and never once missed a beat. Worry about the other problem first. One thing at a time.