Question about 1979 Suzuki GS 750 E

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Electrical wiring short troubleshooting1979 suzuki gs750; fuses for headlight, turn signals, and horn keep blowing out

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You almost certainly have a bad coonnection somewhere, have a look behind the headlight to start with. Really, you need to do some electrical fault finding with a multi tester. Try to pin point exactly when the fuse is blowing - ie when u switch something on, or when you start up..... Some times the tank of these can rub o hole in the wiring loom underneath - check there. There are many electrical `potential` probs with gs`s but they can be rectified. Try the GSRESOURCE site for more assistance.

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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Hello everyone I have a 2015 Suzuki M50 I tried to connect aftermarket turnsignals but as soon as I connected one it blew a fuse. Now everytime I try to connect my original signal it blows the fuse.


Hi, Clinton before diagnosing your blown fuse issue check the bottom of your seat if its metal and comes in close proximity to the positive battery post you need to take the necessary steps to ensure there is no contact (electrical tape, thick rubber insulation, hammer a dent in the seat bottom etc.) You are going to need a wiring diagram from your service manual, a test light, an ohmmeter and plenty of extra fuses.
If you turn on your ignition switch and immediately blow a fuse you have a hard/dead short and is usually easy to find. With a test light connected to the hot side of the blown fuse holder start stabbing the wire/s that leads away from the fuse holder and towards the ignition switch, you test light will illuminate validating the short. When the test light fails to illuminate you have passed the short and need to back up until the test light illuminates, then look in the immediate area for the short.
If you driving down the road for 30 minutes or 15 miles and blow a fuse you have soft/flying short and may take some time and patience to find.
If the main fuse/circuit breaker constantly blows/trips while riding you probably have a faulty battery terminal connection. Check battery terminals for damage or corrosion, check battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary. Any other fuses that constantly keep blowing while riding are usually caused by a loose or corroded ground wire in the circuit, which means you have to check, inspect, test each and everyone with and ohm meter set on a low ohm scale 100 ohms or less . Simply touch one lead to the ground source and the other lead to the battery negative terminal, a reading of zero indicates a clean solid ground. Any number reading or infinity indicates a poor ground and needs to be repaired. Poor or weak grounds require excessive additional amperage to complete the circuit which in turn blows the small amperage fuse.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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2 Answers

2005 merc grand marquis Headlights keep blowing fuse, parking lights turn on, turn signals work


then go to an auto electrics business to have the SHORT found and fixed . also note 1 question is quite enough on any problem

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1 Answer

After i took out the batterie to take off carbs to clean them the starter wont work or the horn


Hi, Chuck and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Bank angle sensor tripped and ignition/light key switch not cycled to the "OFF" position and then back to the "ON" position.
5. Faulty starter button/switch.
6. Faulty kickstand or clutch pull in switch/sensor.
7. Security alarm needs a reset.
8. Starter control circuit, relay, or solenoid faulty.
9. Main fuse or circuit breaker may be blown or faulty.
10. Electric starter shaft pinion gear is not engaging or over-running starter clutch slipping.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.thegsresources.com/_forum/showthread.php?231947-GS750-won-t-turn-over-battery-is-charged-Nothing-from-starter-button-or-kick/page3
http://www.xs11.com/forum/showthread.php?t=41364
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1 Answer

Harley troubleshooting


You have a short in that circuit, check for loose or bared wires in the headlight or blinkers or disconnect any plug. Leading to those parts one at a time until the fuse stops blowing then trace those wires to the problem

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1 Answer

Yamaha 650 vstar 2009 turn signals,horn,brake light keep shorting out


prprobably best to start with removing seat and fuel tank and doiing an inspection of wiring harness...all good, inspect each light socket for damage....include any added items on the harness.
If all that looks good...try temporarily unplugging horns...on Yamahas the horn is usually electrically "hot" and then runs to horn button where it is grounded.
A defect in the horn can short out and blow signal fuse.

Feb 25, 2013 | Motorcycles

1 Answer

Signal fuse keeps blowing


Just a hunch....if its blowing immediately, your horns are on the signal fuse....Yamaha typically wired these so the horns is hot and the horn button grounds to sound the horn. Unhook connectors and check if there is a short from either terminal to ground....one probe on a terminal, other on bike ground...retest on the other terminal. You should be open (infinity) to ground.
If fuse is fine till turn signals are used....inspect each socket for wiring damage.

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1 Answer

Got a 2000 hayabusa, instrument panel back brake light and turn signals out, replaced 15amp fuse, rode the bike next morning same again?


Well...in general....the turn signals brake lights and horn and instrument lights are typically on the Signal fuse on most bikes.
So....any recently added accessories to the circuit?
If not...start at the signal and brake light sockets...inspect wiring around the socket and the sockets themselves looking for a possible short.
Then check wiring to the back under seat for chafing pinching etc
Inspect the wiring aroiund the steering head in case a pinch has occured causing a short on bar rotation.
If all looks okay...inspect the horns....not sure on your Busa, but many horns use 2 wires and ground through the horn button....so the horn needs to be insulated on its mount so as it may be wired hot and can short.

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1 Answer

Electrical short, No headlight, no horn, no turn signals


may have burnt a wire inside the wiring loom, use multi meter to check each wire continuity, or perhaps jump a wire from + battery to the positive horn wire.
use a fuse on the jump wire in case of short.
If this work then definate break in loom

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2 Answers

My 2007 yamaha v star 650 keeps blowing the fuse that goes to the turn signal brake lights and horn


There seem to a 'live' wire (in the turn signal, brake light or horn circuit) touching the frame of the bike and thus the fuse blowing.
You will have to trace out the short-circuit.
You can start wth removing the connections to the turn signals thn fit the fuse and see if it still blows ....like wise remove the wire to the brake light and thn check if the fuse blows, same to the horn.
In short ..you can remove all the wires connections to these and thn fit the fuse and refit the wiring connections one by one ,where the fuse will blow after connecting the wire to say brake light thn the problem is at the brake light wiring ....likewise to the others ...onces you identify the circuit tht has the problem thn it will be easy to trace it and rectify it.
Hope this helps!

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