Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-19-2020, 04:11 AM   #1
Ensign
 
Join Date: Aug 2020
Posts: 3
Question 1998 SR with 454 and no power.

I've used the boat w/o issue for two seasons. This year, nada. Electrical issue, probably related to the 50 amp fuse.

Question: Was the 454 original equipment in the '98 1900 SR?

Need some electrical troubleshooting advice, an electrical schematic, and a multimeter?

I downloaded 24 Marine Engines GM V-8 1999 from the documents. Is this relevant and a good reference to get started?

Thanks,
Sparky
__________________

Seattle 1998 Maxum is offline   Reply With Quote
Old 08-19-2020, 05:04 AM   #2
Commander
 
Join Date: Dec 2015
Location: Florida
Posts: 264
Default

Not sure if it was, but if it’s engine related electrical, all 454 engine electrical for that year will be the same. Harness is from Mercury not model/brand specific.

What issue are you having and why is the breaker suspect?
__________________

jparsons121 is offline   Reply With Quote
Old 08-19-2020, 11:15 AM   #3
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 8,267
Default

Welcome aboard!

Using a multimeter set to read DC volts but the black lead on a good ground and then the red lead on either terminal of the 50 amp breaker to see if you have voltage. If no voltage check the fuse on the starter solenoid. If voltage check for 12V on the B terminal of the backside of the ignition switch.
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 08-22-2020, 03:21 AM   #4
Ensign
 
Join Date: Aug 2020
Posts: 3
Default

thank you, will try tomorrow!
Seattle 1998 Maxum is offline   Reply With Quote
Old 08-30-2020, 12:40 AM   #5
Ensign
 
Join Date: Aug 2020
Posts: 3
Default

Thank you for your support! Turns out the engine is a Merc 350 not a 454.

The 50 Amp CB needed replacing. Being over zealous in its removal I mixed up which lead goes which terminal on the circuit breaker.

They are both 8 gauge red wires?? Does it matter which wire goes where on the CB?
Seattle 1998 Maxum is offline   Reply With Quote
Old 08-30-2020, 01:04 AM   #6
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 8,267
Default

One wire should be red and the other red/purple, the red wire goes to terminal 1 or input and the red/purple goes to the other terminal. Red is from the battery and the red/purple is the protected power wire to the engine and helm.
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 08-30-2020, 01:08 AM   #7
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 8,267
Default

On second thought I donít think it really matters as itís either opened or closed.
__________________

__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Reply

Tags
1900sr, 454, 50 amp fuse

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 08:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.