2007 Mercruiser 4.3L TKS
S/N# 1A041404
While I continue to diagnose my slow overheat at idle issue, I'm also in the process of straightening out some wiring issues from a PO. I've posted a picture and need help identifying a couple of wires.
Forewarning, I am new to boats. I'm not an idiot, but please excuse and dumb questions for the time being. : )
I assume at one point they had a no start issue. The PO seems to have lost power to the solid white wire going to the TKS module (assume it's the TKS module, parts diagram said "Fuel Enrichment", mounted on starboard side of the carb, 2 wires black and white) They have tapped the white wire and jumped it over the ignition coil (at least they fused it if that is any consolation).
Boat starts fine. I can hear the TKS sucking the first 5-10 minutes or so, then it shuts off. I want to get this corrected because A) It shouldn't be like that, B) I'm sure how dangerous the situation is, as I am still learning boats, C) I don't want a fire, D) It looks hacky.
Here are my questions....
-- (Back left of pic)The empty harness plug with the white and purple/yellow wire. From what I have read, this is where the diode should be connected, but currently isn't?
--(Middle Right) You can see the blue butt connector with a blue wire running back to the coil and the red wire taps into the white for the TKS module. I assume the fix is repair the wire to original state, then figure out if I have a starting issue?
--(Middle) What the heck are the 3 ring terminal wires for? Two black (assuming grounds), one Orange/Pink.
How dangerous is this situation right now? Should I not even start it any longer until I fix the wiring and add the diode (assuming that is what's missing on the plug)? I know the purple/yellow ties to the starter and oil pressure which power the fuel pump. My fuel pump isn't running (constantly) or anything with the battery switch off / key off / etc.
Thanks!
-Sam
Also is there a good place to find a full wiring harness diagram? I've scoured the internets a bit, but just found bits and bobs.
S/N# 1A041404
While I continue to diagnose my slow overheat at idle issue, I'm also in the process of straightening out some wiring issues from a PO. I've posted a picture and need help identifying a couple of wires.
Forewarning, I am new to boats. I'm not an idiot, but please excuse and dumb questions for the time being. : )
I assume at one point they had a no start issue. The PO seems to have lost power to the solid white wire going to the TKS module (assume it's the TKS module, parts diagram said "Fuel Enrichment", mounted on starboard side of the carb, 2 wires black and white) They have tapped the white wire and jumped it over the ignition coil (at least they fused it if that is any consolation).
Boat starts fine. I can hear the TKS sucking the first 5-10 minutes or so, then it shuts off. I want to get this corrected because A) It shouldn't be like that, B) I'm sure how dangerous the situation is, as I am still learning boats, C) I don't want a fire, D) It looks hacky.
Here are my questions....
-- (Back left of pic)The empty harness plug with the white and purple/yellow wire. From what I have read, this is where the diode should be connected, but currently isn't?
--(Middle Right) You can see the blue butt connector with a blue wire running back to the coil and the red wire taps into the white for the TKS module. I assume the fix is repair the wire to original state, then figure out if I have a starting issue?
--(Middle) What the heck are the 3 ring terminal wires for? Two black (assuming grounds), one Orange/Pink.
How dangerous is this situation right now? Should I not even start it any longer until I fix the wiring and add the diode (assuming that is what's missing on the plug)? I know the purple/yellow ties to the starter and oil pressure which power the fuel pump. My fuel pump isn't running (constantly) or anything with the battery switch off / key off / etc.
Thanks!
-Sam
Also is there a good place to find a full wiring harness diagram? I've scoured the internets a bit, but just found bits and bobs.
