Author Topic: Electrical problems 50th Anniversary 1100  (Read 1810 times)

Offline Jinxy

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Electrical problems 50th Anniversary 1100
« on: May 11, 2018, 07:34:23 AM »
ST is not playing the game. It starts, rides well but just keeps blowing the one 10amp fuse.

HONDA ST1100 1999 50th Anniversary with TCS/ABS and DBS.
 :gldst11
3 weeks ago blew the 10amp fuse marked tail light. (Tail light/Horn/Dash lights)
Replaced the fuse ran for 10-15 minutes. Blew fuse
Replaced the fuse started the bike idled fine – accelerated – Blew fuse
Replaced fuse turned key on – Blew fuse immediately
All other fuses OK and intact – Bike runs all other functions working
STARTED TROUBLE SHOOTING
Started to remove fairing and found trailer plug in rear cowling. Appears OK.
Disconnected ALL accessories wiring to Battery (Spotlights, 12V cig plug etc)
Started bike – Blew fuse immediately
Removed handlebar cover and checked wiring around handlebar - No bare wires

Removed rubber sleeve from cluster of wires going to indicator housing – No bare wires

Checked all visible wires and connections – No bare wires and no other issues.
Checked Tail light assembly - Tail light not working , Brake light working.
Removed tail light assembly completely
Started bike – Blew fuse immediately
Replaced fuse – All feature working including Horn and dash lights - accelerated - Blew fuse immediately.
Replaced fuse with 15amp fuse – Turned key on - Blew fuse immediately
Removed Trailer plug completely from system.
Replaced fuse – Turned key on - Blew fuse immediately
Cleaned all contacts and electrical switches with Electrical contact cleaner.
Replaced fuse – Turned key on - Blew fuse immediately
Took most of the other fuses from the fuse box (except one for ignition starter)
Turned bike on everything worked. Started it up everything worked. Accelerated. BLEW THE FUSE IMMEDIATELY

I AM STUMPED
"Any day above ground is a good day"
 

Offline Brock

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Re: Electrical problems 50th Anniversary 1100
« Reply #1 on: May 11, 2018, 08:29:55 AM »
There may have been a wire added to the tail light wire, to switch a relay, that wire could be going to ground some where
Brock
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Offline Biggles

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Re: Electrical problems 50th Anniversary 1100
« Reply #2 on: May 11, 2018, 09:20:14 AM »
Wow!  You can't be accused of not trying before asking!
Brock's suggestion has great merit.  Farklers use that wire all the time for switched relays.
For the modern man who lives in the city, riding a bike might be one of the only ways to escape the humdrum monotony. To take off and ride. To be both at one with nature and one with the bike. To feel masculine. Adam Piggott

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Offline Gadget

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Re: Electrical problems 50th Anniversary 1100
« Reply #3 on: May 11, 2018, 10:57:23 PM »
There may have been a wire added to the tail light wire, to switch a relay, that wire could be going to ground some where
And very, very, very rarely, the relay coil short circuits and blows fuses.

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Offline winston66

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Re: Electrical problems 50th Anniversary 1100
« Reply #4 on: May 12, 2018, 09:15:45 AM »
when the trouble fuse has blown , please advise what function ,ie, horn lights , indicators ,or something else fails to operate , this will give you some idea as to what item or associated wireing is causing the problem.
Please advise,
Cheers, Winston66, Northampton WA,
winston66 Northampton
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Offline Jinxy

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Re: Electrical problems 50th Anniversary 1100
« Reply #5 on: May 14, 2018, 04:37:32 PM »
When the fuse blows. Horn, Dash lights/warning lights and tail light blow
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Offline Jinxy

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Re: Electrical problems 50th Anniversary 1100
« Reply #6 on: May 14, 2018, 04:48:18 PM »
Have found some exposed wires ect behind the dashboard. Waiting for Autoelectrician to come check it out. Still blowing the fuse. On the last occasion a small wisp of smoke came from behind the dashboard. Yellow tapes indicates where the wires are. Also cleaned out a few hornets nests
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Offline alans1100

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Re: Electrical problems 50th Anniversary 1100
« Reply #7 on: May 14, 2018, 07:45:50 PM »
Not sure about blue plug but the green one with the grey wiring looks like an added extra so would interesting to see where that one goes to and I don't recall the red one near the IGN/TCS unit though it looks like it's on the LH headlight wiring so could be the feed wire to a driving light relay.

It's a lot messier in there than mine is even after I replaced one headlight plug.



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