testing coils properly

[davidbailey]

How do I properly test my coils on my 1982 GS550.I am not sure if my wiring is the problem or if the coil is bad.I lost spark on cylinders#2 and 3.The manual tells me to take it to an authorized dealer to have them checked.Can anybody explain this to me in simple terms?

[koolaid_kid]

I suggest you begin here

[azr]

Use the search function

http://www.thegsresources.com/_forum/showthread.php?t=170364&highlight=test+coils

http://www.thegsresources.com/_forum/showthread.php?t=72924&highlight=test+coils

those are just a couple of many. Post your results when you're done.

[davidbailey]

testing coils properly

Thanks for the help,The problem ended up being a loose connection on the primary side of the coil. I was lucky this time and got all 4 cylinders firing.This was the first time I got to ride her since I built her.She rode great with good throttle response and no hesitations and pulled real nice.I was actually surprised being it is just a 550,However when I pulled in the driveway and shut her off I realized that I could not leave it parked there and started her up again and she started revving high at like 5000rpm. i shut down and started to see if the choke was stuck or if the throttle was hung up and checked for vacuum leaks and everything else that I could think of not finding the cause of the problem. After maybe 5 mins I decided to start her again and she idled great at 1100rpms, I shut it off again and started it one more time and again it revved high.Can anybody tell me what could cause this problem?

[OldVet66]

Throttle cables that are too tight can hang the throttle on some bikes.