Quote:
Originally Posted by Matt G.
Before you start troubleshooting electrical components, simply visually check for strong blue spark at the plug. If you have that, the coil, condenser, wire, plug, etc are all fine and you have some other problem.
|
Not trying to play devils advocate, but just want to share an experience I had with my case 222. It has the same engine and ignition switch as the 1250. I was having problems getting the tractor to start, the engine would shake pretty rough, sometimes it would actually start, but would shake rough and finally die. When I pulled the plug to see if it had spark, it actually did, and it was a strong blue like Matt describes. BUT, when I'd put the plug back in, the engine would get flooded or run extremely rough if it did fire, and die. It turned out, one of the wire connecting to the ignition switch was pretty dirty and EXTREMELY loose. What was interesting, when I would take the spark plug out, the spark was perfect, because the air in the engine could escape the plug hole, and not shake the tractor. But when i would put the plug back in, the engine was shaking enough to make the wire wiggle, and would short out against the wire next to it. I only noticed it when I tried firing it up in the dark one night, and a spark caught my eye coming from behind the ignition switch. In all honesty, you're probably safe if you have the blue spark, but I know from experience now that the blue spark doesn't guarantee no electrical problems, haha.