no spark

[curtisbyrne]

bought a new coil since it was split and showed little spark.got new coil on and no spark whatsoever now.have everything hooked up correctly as far as i can see. checked all fuses and found one 15 amp fuse blown in the fuse block(left side fuse),replaced it and still nothing. spark plugs are near new and had flywheel off while i replaced the coil and all magnets were on good. need some help as of where to start troubleshooting.

[Craig_B]

Not sure what motor you have but I changed the coil on a Kohler in my lawn tractor.
I installed it upside down at first. No spark. Once I realised my mistake I turned it over and it worked fine.
Upside down looks proper but its not.

[scimanstev]

This is just a guess, but on a car, I would check the coil wire. Removing and reinstalling my have caused an open condition. The same is true with spark plug wires. I do admit I have never seen the coil or its wiring. I just understand electronics.

Steve

[curtisbyrne]

thanks guys will try the flip of the coil and re check wires its something simple for sure!

[curtisbyrne]

well after trying everything still no spark.figured i take another look at the coil and remove it,unfastens the bolts and the coil is split on one side. it was not split when bought by the way. peed off to the max

[dirtdobber]

Is your coil adjustable so that you can set the gap between it and the flywheel?

[curtisbyrne]

yes 0.10 i used a credit card

[curtisbyrne]

could i just tack it back on with some solder?

[scimanstev]

Possibly yes, as those are just the core laminations, but it would need to be done in a solder bath, with the coil removed. Then you would need to spin it to remove excess solder. It would be a whole lot of effort, and may not work. Since that is a magnetic return path, with just a gap between the laminations, it might not be the whole problem. I would take a multimeter and measure the coil resistance to make sure it is not open. It may be in the specifications of how many ohms it should read.

Steve

[curtisbyrne]

with ohm meter i put (-) on kill lead and (+) on the lamination's as the manual states and it gave me a good reading which was in the good side. there is another test which you put the leads of your meter on the plug wire ends but i cant seem to get any reading?

[scimanstev]

Then your plug wires may be open. Make sure you meter is on autorange for ohms, or on the highest range, and if you still get no reading, replace them. Most ohm meters will measure up to 40 megohms, which is very high. Anything higher than that could be considered an open connection.

Steve

[curtisbyrne]

set gap to factory .010 and got spark! thanks guys for the help!

[racerone3]

well after trying everything still no spark.figured i take another look at the coil and remove it,unfastens the bolts and the coil is split on one side. it was not split when bought by the way. peed off to the max

that is perfectly normal. all those steel plates are just stacked. once you tighten the bolt, they bend slightly and don't stay together anymore. when installed, the bolt holds everything together.

[curtisbyrne]

whats the proper way to set it. do 1 side at a time or the whole coil at once with a .010 guage?