I have a 1989 Johnson gt150 j150stlcem that I rebuilt, but lost the pictures I took, and not sure where some of the wires connect to. The ones in question are number 18 on the wiring harness in the attached picture. Greatly appreciated if you can help.
What color are the wires?
I would say they are tan. Looks like the color has faded due to the age of them.
Should be what we are asking...If the wires are faded, peel the wrapping on the bundle back just a hair to see the colors. With the colors we can help without guessing. With the known colors and your OMC repair manual, it will be a cinch.Originally Posted by SMR
Age and treachery will always overcome youth and skill !!
Here is the ones in question.
May be hookup to port side temp sensor in head...starboard temp sensor will be tan wire and black and wire wire.(starboard has 2 wires for quickstart feature/port has 1/tan.) Could be vacuum switch on port side as well. What kind of connector is on it?
Last edited by omcforever; 08-13-2018 at 09:12 PM.
Age and treachery will always overcome youth and skill !!
That harness looks like it is ganked up and routed wrong as well......
Age and treachery will always overcome youth and skill !!
No Quick start on a GT
And vacuum switch wire is a single long wire and has a ring terminal
[QUOTE=SMR;9582559] No Quick start on a GT
Last edited by 316jughead; 08-14-2018 at 05:32 AM.
You sure about that??? When OMC came out with the single T power pack in 1989 it was the first year for Quick Start, The T power pack was used on the GT/XP's from 1989-1991 when the GT/XP went out of production.
1989 did have quick start and even though you say vacuum has ring connector,,,if you trace wiring,,all 3 tan wires are joined together since they all use switches that ground and cause alarms,,,,overheat/vacuum,thats why I asked what kind of connector was on it..,,,learn your motors SMR,,,,
Last edited by omcforever; 08-14-2018 at 11:23 AM.
Age and treachery will always overcome youth and skill !!
it has a round spade connector as if it is to be connected to the terminal block, that has the yellow, yellow/grey,grey,red, and purple.I believe it is for the sensors, but not sure they are powered from the red lead or the grey. All the diagrams I see indicate they go to the powerpack, but not on this motor. The other thing is the vro pump has 4 wires coming off of it, not three like I see in the diagrams.
Sorry late to the party,,,FIL in hospital on life support.....been a bad day.
Age and treachery will always overcome youth and skill !!
Fred, Jerry, handle this one if yah could...I am going to be out of the loop for awhile.
Age and treachery will always overcome youth and skill !!
Saw that in the lounge, prayers lifted for you and the family. Sad news on your FIL.Fred, Jerry, handle this one if yah could...I am going to be out of the loop for awhile.
I'm sorry to hear that Art, take care Bud.
There is a cover plate for the terminal strip that has the wiring colors on it. Your shop manual has the wiring diagram in the back of it.
The VRO was replaced, the newer ones have 4 wires.
Last edited by 316jughead; 08-14-2018 at 01:08 PM.
You may not believe it Juggie but I've worked on these motors too.
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