New to Forum - Having electrical Issue with ST12

[smcelhe]

My son has a 1976 ST12 garden tractor that he rides around and sometimes pulls a cart to haul firewood.

Several months ago he shut it off and it would not start...I cleaned the carb, put a new plug in (not a CJ8)....tried spraying starting fluid in the cylinder....it would not start. I had spark...but I don't think it was good spark. Several days later I put a CJ8 plug in it and it fired up.

He used the mower for several months....ran fine....lately I noticed that it was getting hard to start, especially after he ran it awhile. Yesterday it wouldn't start at all.

I put a new CJ8 plug in it....put starting fluid and gas in the cylinder....it won't start. I have spark, but I'm not sure the spark is all that great.

I was reading that the solid state ignition could be the issue....and that you can't buy new ones. I also saw where someone was making ignitions for these.

Is the problem with the external coil/ignition or with the piece behind the flywheel?


Any info would be appreciated.

Thanks Shawn

[spence]

I agree with your assessment that the ignition may be at fault.

The guru for ignition issues and retrofits is Ed Stoller. He has a website that walks you through fixes for the ignition:

www.enginesandmagnets.com

Spence

[smcelhe]

Thanks for the info.

Shawn

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