Question about 1985 Suzuki GSX 550 ES

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I have a GSXR 400 1985, been stood for a couple of years, replaced the fuel, won't start - no spark at any cylinder, side stand switch OK, neutral switch OK, spark plugs ok and have fuel at all 4. 20amp fuse had blown under right hand panel adjacent to seat. replaced no change. Enging turns over ok, lights horn etc all work. Please help with next steps.

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  • Mark Hughes
    Mark Hughes Feb 02, 2010

    Batteries were low but was using a spare car battery to jump start. i am aware if the voltage falls the CDI won't fire, I have the same problem with my Zephyr from time to time. But sure battery voltage was OK.

  • Asb237 May 11, 2010

    have you checked the batteries condition?

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I would check that the TCI is working by plugging it into another bike GSF 400 bandit is the same unit I believe. If it is damaged you can get a replacement from a firm called ignitech and the upside is the new TCI is not restricted by the *** gear monitoring switch that limits top gear performance.

Posted on Mar 08, 2010

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Check the clutch safety switch on the handlebar

Posted on Feb 08, 2010

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ECU gives no spark signal towards coils, ECU tested ok..


Try bypassing the side stand switch altogether & also any safety switch on the clutch lever, sounds like some sort of wiring issue or maybe a bad stator plate.

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Hi, Darrensemail the ignition circuit cut-off system comprising of the side stand switch, clutch switch and neutral switch has the following functions:
a. It prevents starting when the transmission is in gear and the side stand is up, but the clutch lever is not pulled.
b. It prevents starting when the transmission is in gear and the clutch lever is pulled, but the side stand is still down.
c. It cuts the running engine when the transmission is in gear and the side stand is moved down.
Periodically check the operation of the ignition circuit cut-off system according to the following.
With the engine turned off:
1. Move the side stand down.
2. Make sure that the engine stop switch is set to "RUN"
3. Turn the key to "ON".
4. Shift the transmission into the neutral position.
5. Push the start switch if the engine does not start the neutral switch may be faulty.
With the engine still running:
6. Move the side stand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the side stand down if the engine does not stall you may have a faulty side stand switch.
After the engine has stalled:
10. Move the side stand up.
11. Keep the clutch lever pulled.
12. Push the start switch if the engine does not start you may have a faulty clutch switch.
This check is most reliable if performed with a warmed-up engine.
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My zx7r, ive got no Ignition or Neutral light, I have replaced the ignitor unit,the clutch switch, the battery,the side stand switch,the junction box, the fuel pump and still no ignition? I took off my...


Hi, Anonymous the ignition circuit cut-off system comprising of the side stand switch, clutch switch and neutral switch has the following functions:
a. It prevents starting when the transmission is in gear and the side stand is up, but the clutch lever is not pulled.
b. It prevents starting when the transmission is in gear and the clutch lever is pulled, but the side stand is still down.
c. It cuts the running engine when the transmission is in gear and the side stand is moved down.
Periodically check the operation of the ignition circuit cut-off system according to the following tests.
With the engine turned off:
1. Move the side stand down.
2. Make sure that the engine stop switch is set to "RUN"
3. Turn the key to "ON".
4. Shift the transmission into the neutral position.
5. Push the start switch if the engine does not start the neutral switch may be faulty.
With the engine still running:
6. Move the side stand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the side stand down if the engine does not stall you may have a faulty side stand switch.
After the engine has stalled:
10. Move the side stand up.
11. Keep the clutch lever pulled.
12. Push the start switch if the engine does not start you may have a faulty clutch switch.
This check is most reliable if performed with a warmed-up engine.
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.
http://www.zxforums.com/forums/zx-7r-forum/50874-zx7r-won-t-start.html
my bike will not start zx7r
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Mar 09, 2013 | 1995 Yamaha FZR 600

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Cant get my 50cc scooter to fire up-no spark. any


  • Do you see spark? If not, check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the side stand kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it.
  • Is the handlebar kill switch on? Is it shorted out?
  • Check the fuses.
  • Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires?
  • Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center or side casing.
  • If still no spark, get CDI system and coils checked at the dealers shop.

Aug 14, 2009 | 2005 Suzuki RM-Z 250

1 Answer

1983 yamaha xj 650 no spark already changed the cdi coil plugs wires and mag pick up what next?


  • Do you see spark? If not, check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the side stand kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it.
  • Is the handlebar kill switch on? Is it shorted out?
  • Are you getting power to the coils?
  • Check the fuses. How good is the battery? Try a jump start from your car battery.
  • Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center or side casing. If still no spark, get CDI system and coils checked at the dealers shop.

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Start with a new spark plug. Check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. Check the fuses. How good is the battery? Try a jump start from your car battery. Is the handlebar kill switch on?

Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. If still no spark, get CDI system and coils checked at the dealers shop.

Jul 29, 2009 | 1995 Honda XR 250 R

1 Answer

No spark


Check the side stand kill switch if your bike has one. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. Check the fuses. How good is the battery? Try a jump start from your car battery. Is the handlebar kill switch on? Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Install new spark plug.

If that doesn't do it, check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. If still no spark, get CDI system and coils checked at the dealers shop. You can screw up a CDI unit checking it yourself.

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3 Answers

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Check the fuses. Next, check for spark. If no spark then check again but with a new plug. Is the kill switch on? Does the side stand have a kill switch? Is it working properly? Tip-over kill switch on your bike? Check the operation of the ignition switch and all kill switches with a volt ohmmeter.

Check the loom. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. With a little luck this will get you back on the road.

Please rate this answer. Thanks

Apr 05, 2009 | 2001 Suzuki GSX 750 F (Katana)

2 Answers

My 05 gsxr wont start


Check for spark first of all. If no spark, is the kill switch on? Is the side stand up? It should be up when starting. Is the bike in neutral? Check the fuses.

If spark is present, is the gas turned on? How clean is the air filter?
If the bike still will not start go ahead and drain the carbs. If your bike has a water trap bowl behind the gas valve then remove the bowl, clean and reinstall it.

Doing this should get you back on the road.
Please rate this solution. Thanks!

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