I'm getting no spark to the plugs .the bike has been standing for ten years.Looking for the wire digram gs550e 1980. pls can you help. thanks

1. Oil level is checked with the engine off and the bike on its center stand so that the oil level is even across the engine.

2. Without knowing the model and year of your bike, it's not possible to suggest the oil capacity for your engine. Some engines have the maximum oil capacity molded into the engine case near the oil filler; others do not.

3. Your fuel petcock is vacuum activated. When the engine is running, a small amount of vacuum keeps the fuel flowing when the petcock is set to "On" (main tank) or "reserve" (emergency dregs of the tank). "Prim" stands for "prime," which permits fuel to flow without the presence of engine vacuum. You'd use this if you ran the bike out of gas and needed to get fuel to the carbs so that the engine could be started again. You don't want to keep your petcock set to "prime" for very long when the bike is turned off (or even when it's on) so that the carbs can't overfill. In extreme cases, you can fill your crankcase with gasoline, which can lead to hydraulic lock and the potential for serious engine damage if you try to run your bike like that (I've had that happen to me).

4. Again, without knowing the year and model of your bike, I am not able to provide any information about the spark plugs used by your bike. However, if your bike has 18mm spark plugs, you'll need an 18mm deep socket to install and remove them. I recommend using a 6-point over a 12-point socket for this purpose--and spending the extra dollar or two to get a good quality, brand name socket. I have never seen an 18mm "spark plug" socket, but if you're really concerned, you can take the little rubber insulator out of an old spark plug socket and stuff it in an 18mm deep socket. I have never bothered.

Possibilities are; handlebar kill switch is grounding out, kick stand kill switch is broken or needs adjusting, a bad spark plug, power wire to ignition has come unplugged, bad ignition switch, ignition system needs service, coil or coil wire has gone bad. This list is in sequence of likelihood.

Either connect the two wires that go to the sensor light together to bypass the system or buy a safety switch and put it back on so the next time you forget to put the stand up you do not crash and burn.

The site below (exploded views - part chart) should get you mobile again, see electrical and wiring harness sections . The rest of the bike is there also. Cheers.

http://www.cmsnl.com/suzuki-gs550e-1977-1979-usa_model16028/partslist/

your pulse generators are causing this! change this out and get back to me with at least a helpful. Thank you!

ck to see if you are getting spark. If not, ck the coils for wire connections and juice while cranking. If you have spark, the coils are fine. Make sure you are getting fuel..

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.

Check the kill switches including the side stand switch, with an Ohmmeter. Good battery? Good fuses" All wires clean and with a solid connection? Check the loom. Any abraded wires? Check the operation of the ignition switch with a volt ohmmeter. Is the bike in neutral and the neutral light is lit up? Get new stock spark plugs.

If still no spark, get CDI system and coils checked at the dealers shop.

Please rate this solution. Thanks burbee904!

you should see a spigot on the carb ( normally a brass color) thats where the fuel line goes. and to check for spark, pull off plug cap, remove plug and place it into the cap. rest the plug on the motor so it is touching at the thread part. then try to start the bike while looking at the plug, you will see the spark jump from the electrode, thats if you have a spark, if not then you need to start looking at why? maybe bad coil of just a fuse blown. do you have all other electrics working