Electrical problem
Banned
Joined: Jul 2009
Posts: 7,406
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From: Straight Jacket Memories and Sedative Highs
I agree need to pull as many connectors apart as you can. Look at the drawing and see what there is.
If you had anything apart, I would look there. Hard to say when others do work. If you do pull tank, it is a good time to install quick disconnects on cross over hose.
Might need to think about what was vandalized and what was fixed. More info on that might help. What was damaged and what did they replace?
Is it FI or carbed? Not seeing a fuse for pump, I think there is dedicated fuse, but not sure. This is where it helps when guys use alphabet.
If you had anything apart, I would look there. Hard to say when others do work. If you do pull tank, it is a good time to install quick disconnects on cross over hose.
Might need to think about what was vandalized and what was fixed. More info on that might help. What was damaged and what did they replace?
Is it FI or carbed? Not seeing a fuse for pump, I think there is dedicated fuse, but not sure. This is where it helps when guys use alphabet.
Novice
Joined: Feb 2010
Posts: 18
Likes: 2
From: Wisconsin
Check the wires for the rear brake switch. A few years ago I put new bushings in my swing arm. When I put it all back together two wires got pinched between the swing arm and frame. Didn't realize it until last year when I blew a fuse. I had everything disconnected and it was still blowing fuses. Finally found the pinched wires that were shorting out.
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Joined: Jul 2009
Posts: 7,406
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From: Straight Jacket Memories and Sedative Highs
Check the wires for the rear brake switch. A few years ago I put new bushings in my swing arm. When I put it all back together two wires got pinched between the swing arm and frame. Didn't realize it until last year when I blew a fuse. I had everything disconnected and it was still blowing fuses. Finally found the pinched wires that were shorting out.
Seasoned HDF Member
Joined: May 2008
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From: South Carolina
Let`s not send the guy on a wild goose chase...The brake light is powered by the accessory circuit (orange/white wire).
The circuit in question is the instruments circuit (orange wire).
OP: Unplug connector #1 and #108, this will isolate the main harness, see if the fuse still blows.
If the fuse still blows we know the short is in the main harness somewhere.
If the fuse does not blow, reconnect #1 connector. If fuse blows, short is downstream of #1 connector.
If fuse does not blow, the short is downstream of #108 connector.
#1 connector is one of the big connectors between the main harness and the interconnect harness.
#108 is the connector for the tachometer.
The circuit in question is the instruments circuit (orange wire).
OP: Unplug connector #1 and #108, this will isolate the main harness, see if the fuse still blows.
If the fuse still blows we know the short is in the main harness somewhere.
If the fuse does not blow, reconnect #1 connector. If fuse blows, short is downstream of #1 connector.
If fuse does not blow, the short is downstream of #108 connector.
#1 connector is one of the big connectors between the main harness and the interconnect harness.
#108 is the connector for the tachometer.
Last edited by Dan89FLSTC; Mar 19, 2020 at 09:12 PM.
Banned
Joined: Jul 2009
Posts: 7,406
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From: Straight Jacket Memories and Sedative Highs
I had my hand controls apart to lube cables and ended up with a strand of wire shortening and blowing fuse. Though I think that was ignition. Need to look at wiring diagram, other wise wasting time.
Also need to focus on what worked on. What was replaced, what was damaged, and how long ago was it. Always good to think about that, but if it was to long ago, didn't fixate on that either.
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Joined: Jan 2012
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From: Oklahoma
I may be wrong, but here goes. The brake light should only pop a fuse when it is activated by either switch. Unless there is ALSO a switch malfunction, (brake light always on) the brake light should not be a player in this, or any fuse blowing.
Seasoned HDF Member
Joined: May 2008
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From: South Carolina
The OP`s issue is not a brake light issue, however, it is a instruments circuit issue.