Question about 1978 Suzuki GS 750 E

1 Answer

I am having a problem locating an electrical problem. When I check the battery with the key switched off, I get a 12.47 volt reading, when I switch the key on the volts drop to 1.35 and when I press the horn it drops to 0.68 volts. Anyone have an idea of what the problem might be. I thought it might be a short in the ignition switch but that would preclude the voltage drop by using the horn. Anyone??

Posted by on

  • 1 more comment 
  • topjack57 Jul 03, 2009

    I just put a new battery in the bike. It did the same thing when I had the old battery in place. When I try the horn and starter while the battery is charged and the charger is still connected, I noticed that the dash lights are brighter. Any ideas?

  • topjack57 Jul 03, 2009

    I just put a new battery in the bike. It did the same thing when I had the old battery in place. When I try the horn and starter while the battery is charged and the charger is still connected, I noticed that the dash lights are brighter. Any ideas?

  • stefz34 May 11, 2010

    Have you had the battery load tested, sounds like you could possibly have a battery with a bad cell in it.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Suzuki Master
  • 2,050 Answers

If your battery is good...
something is draining it badly.
You could remove fuses, and see if the condition goes away, then replace one at a time. (I think you see my method of madness)
If not, go deeper, like unplug a wire harness, remove a starter cable, etc....
Good luck

Posted on Jul 03, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Hi, my Gsxr k1 dead put key in and on nothing take key out rec counter needle go up and down sometimes if u put kill switch off and key on dash goes on but not petrol pump. Checked and clean all electric...


Hi, Please check all fuses if all OK I would check the Battery. A dying battery causes all manner of problems. To remove a battery please undo negative lead first. When you refit a battery please connect positive lead first. Check the battery for life use a volt meter your battery should show at least 12.5 volts if OK try charging it for a while on a dedicated motorcycle charger. Please never use car, boost chargers or jump start from another vehicle. I hope this helps good luck.

Feb 12, 2015 | Goes Motorcycles

1 Answer

I need to know wires to to the key switch on my western golf cart


The battery wire goes to one side, the other goes to the starter (if gas) or the controller f/r switch (if electric). Any other wires that control 12 volt accessories that are "switched" will go to the same lug as the controller f/r switch. Wires that control accessories that can stay "hot" regardless of the key switch will usually go directly to the batteries. Be careful that you hook to the proper voltage on the batteries. They are wired in series, so two 6 volt batteries wired together will give you 12 volts...........any two batteries, as long as the cables connect them together. If you have 12 volt batteries and a 12 volt accessory (like a stereo or electric horn), you need only to wire across one battery.

Oct 09, 2014 | Golf

3 Answers

2000 Pontiac sunfire won't start makes no noise when turn key over . headlights and radio work and dome light .. I have replaced steering column and ignition switch


This could be a couple different things causing your No-start condition. first thing I would check (Battery is good) access the starter solenoid, the small single wire connection is the start signal. Test for 12 volts here with DVOM or test light while someone turns the key. If there is 12 volts reading, the starter solenoid is defective. If there isn't 12 volts reading check all the fuses (with test light).
The second item causing the trouble could be the Neutral Safety Switch (Auto Trans) or Clutch Safety Switch (Manuel Trans) These could be open or out of adjustment.
Hope this helps you...

Jul 04, 2014 | Cars & Trucks

1 Answer

Electrical. All lights off when key is on.


check inside the ignition switch is clean and makes contact in the on position etc ! may need a new one !

Apr 28, 2014 | 1998 Suzuki GSF 1200 Bandit S

1 Answer

2005 mini cooper headlights and gauges quit working


U will need a schematic for you to find out the path of electricity to all of the affected areas. Apparently they all have something in common so it should ne be too hard to locate the cause.

Apr 15, 2017 | Mini Cooper Cars & Trucks

1 Answer

95 astro has no spark to the coil what next


Try this tips:
1. Check the battery voltage at the battery with the digital volt/ohm meter. Set the meter to "Volts D/C" and touch the black meter lead to the negative battery post and the red meter lead to the positive post. A fully charged battery will measure 12.7 volts or more. A measurement of 12.5 volts is considered discharged, and the battery should be charged before any further testing. Any measurement below 11 volts indicates a severely discharged battery--the battery is most likely damaged and should be replaced. If the battery measures above 12.7 volts, proceed to the next step.

2. Check the starter for battery voltage by touching the red (positive) meter lead to the battery cable terminal on the back of the starter and the black (negative) lead to the chassis. The voltage reading should be approximately the same as the measurement at the battery. If the reading is lower than battery voltage, check for bad connections at the cables on the battery and the starter or ground cable.

Check for ignition switch signal at the purple wire on the back of the starter. When the key is turned to the "Start" position this wire should measure battery voltage. If the reading is less than battery voltage, or zero volts, check the fusible links (orange wires) on the back of the starter. If the fusible links are intact and not burned or broken, replace the ignition switch. If battery voltage is present at the purple wire, and the starter doesn't turn, replace the starter. If the voltage measurements at the starter are correct, and the starter cranks the engine over when the key is turned to the start position, proceed to the next step.

3. Remove the air duct attached to the throttle body, and spray a liberal amount of the carburetor spray into the throttle body. Replace the hose, and try to start the engine. If the engine starts, the fuel pump is not supplying fuel or the ignition module is not pulsing the injectors. Check the fuel pump fuse located in the under-hood fuse block. If it is good, check for power at the fuel pump electrical connector located near the rear of the fuel tank on the driver's side of the van. In the Chevy Astro van, power is supplied to the fuel pump by the the gray wire on the electrical connector when the engine is being cranked. If power is supplied, hitting the fuel tank with the flat side of a hammer while someone else is turning the ignition key to start will sometimes bump the fuel pump enough to allow it to start. If the fuel pump checks good, proceed to the next step.

4. Check for spark. Disconnect the coil wire at the ignition coil, and try to start the engine. If no spark occurs, replace the coil and ignition module. If a strong spark occurs, plug the wire back in, and remove a spark plug wire from a spark plug and repeat the test. If a spark is not present, replace the spark plug wires, and distributor cap and rotor.


Keep us updated.

Jan 12, 2011 | 1995 Chevrolet Astro

1 Answer

I have 1995 toro ridding mower.i got it not working an the battery was not charging so i got a new battery an ones i hooked it up every thing work bu did not start an it just makes a clicking noise when i...


Test the battery with a volt/ohmn meter to ensure it reads at least 12-14 volts. Check all the safety switches located underneath the seat & the mower deck engage handle is disengaged. Check all battery wire connections are soldi, not corroded. Check wiring on starter solenoid from battery & to key switch.

Oct 24, 2010 | Toro Lawn Mower With Toro Power Tools

1 Answer

None starter,got spark,good battery,fuel,fuses good.


No starter?
Got a volt/ ohm meter?
Check battery for 12.6 volts or better
check voltage coming to and leaving fuses ( oh yeah you checked all that, I guess you know you have spark cause it will pop start, just no electric starter, right?)
Check voltage at starter ( if 12 volts then replace starter)
check voltage at starter solonoid on battery side if no then check clutch switch, sidestand switch, key switch. If yes then check for 12 volts on starter side when clutch pulled in, key swithc on and starter button depressed. If no then check for voltage to spade on starter solonoid coming from key switch. If yes then replace starter solonoid. If no then check key switch and safety switches.

Nov 25, 2009 | 1986 Yamaha FJ 1100

3 Answers

Has 4.0 engine I bought this car 8 days ago. It started fine till yesterday. Now it won't start, When you turn the key it would crank over like only one revolution. I've pulled the battery and starter and...


when the key is held in the start position do u have 12 volts to the starter solenoid? if you do have the 12 volt signal then I suspect the starter solenoid is bad, but I doubt that is the problem, it is more likely the actual ignition electrical switch that is actuated by the ignition lock cylinder, the switch is located just behind the key cylinder inside the steering column, to replace it you must remove the column trim covers the switch is attached to the back of the ignition lock cylinder Assembly. Base on what i have read this switch is a common problem. here is a picture.
378c25d.jpg

Nov 15, 2009 | 1997 Oldsmobile Aurora

1 Answer

No electricity when turning the key switch


use a volt meter check the battery voltage. you must have 12 volts if not charge the battery first.after charging, if it starts you must have 13.8 volts. if not check the alternator

May 30, 2009 | 1992 Lincoln Town Car

Not finding what you are looking for?
1978 Suzuki GS 750 E Logo

122 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts

yadayada
yadayada

Level 3 Expert

75807 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Ed Nelson
Ed Nelson

Level 2 Expert

149 Answers

Are you a Suzuki Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...