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driving at night and BOOM! no lights!

  • Thread starter Thread starter dfinnegan71
  • Start date Start date
Redman said:
....except from the charging system.

The charging system red wire ties into the main red wire inbetween the main fuse and the ignition switch.

If do not have the main fuse, what you dont have is a battery connected to the red wire that goes to ignition swtich, you still have the charging system connected to the red wire that goes to ignition switch.

So if bike is running and charging system functional, could pull the main fuse and the charging system is still suppling power (do keep up the rpms) to the ignition switch (and then to Head fuse, Ignition fuse and Signal fuse).
I have not actaully tried this, just looking at schematics.

.
Click to expand...

Actually I agree with your reading of the diagram - since the main fuse only isolates the battery, the bike should run off the charging system.

In my experience, however, when my bike had the original One Fuse To Rule Them All system, the One True Fuse sat in the same position as the main fuse we are talking about here. When that fuse blew (and it did a couple times) the bike would immediately die.

Why would that be?
 
Thanks Redman and Mistercylinders and you too Koolaid Kid. I will have some time on Friday to sort out some of this. It seems that the "replace and shake" method might be the best idea. I will look around maybe take a pic or two and report my findings. You guys have been super helpful. Oh and Redman, I was not very clear with my statement. When the Kawi blew a fuse, it stalled out. However, when the Zuki blew the fuses I still made it home....redundant by now I suppose. Got to say a big thanks to those Suzuki engineers!! I got it home and in one piece.
 
MisterCinders said:
Actually I agree with your reading of the diagram - since the main fuse only isolates the battery, the bike should run off the charging system.

In my experience, however, when my bike had the original One Fuse To Rule Them All system, the One True Fuse sat in the same position as the main fuse we are talking about here. When that fuse blew (and it did a couple times) the bike would immediately die.

Why would that be?
Click to expand...
Your system was different than this one. Due to the Suzuki design where the ignition switch has two sources of charging power, the MAIN fuse and the R/R line directly connected to the ignition switch (unfused) the power went back to the fuse block, where the ignition fuse was still good. Thus the ignition still operated and he made it home.
In your case, everything, ignition, lights, horn, etc. got its power through the single fuse. When the single fuse blew, you were done. Make sense?
 
koolaid_kid said:
Your system was different than this one. Due to the Suzuki design where the ignition switch has two sources of charging power, the MAIN fuse and the R/R line directly connected to the ignition switch (unfused) the power went back to the fuse block, where the ignition fuse was still good. Thus the ignition still operated and he made it home.
In your case, everything, ignition, lights, horn, etc. got its power through the single fuse. When the single fuse blew, you were done. Make sense?
Click to expand...

Except that my pre-fuse-box wiring did not put a fuse between the R/R line and the ignition switch. In fact contrary to the service manual diagram (in color here) the red line went from the battery (+) to the fuse and then forked to the R/R and IGN switch. The diagram actually puts the fuse in position to isolate the R/R and NOT the battery, but that's not what existed in the actual layout, thankfully.

So blowing that fuse cuts off the battery (+), but not the R/R. If you ran the wires per that diagram, the reverse would be true. A blown fuse would cut off the R/R but not the battery. Indeed, absent some diodes, I can't see how one fuse could protect both the battery (+) and the R/R red wire, unless the R/R were connected directly to the battery (+) unfused.

So I am still perplexed.
 
Well, I haven't had a chance to really give 'er a good goin over. Been crazy busy with work and mid-term exam's this week at school. Post some findings in the next day or two.
 
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