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Kelly C

07-05-2005 20:14:38

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I am a complete rube when it comes to ignition systems. Funny how important the 300 becomes when the 400 blows a pto.... I suppose I could rob the pto off the 300... NAH aint gona go there.

Any how. I have a new alt 12 volt. New disb cap, rotor, Points and condencer.
I think I gapped the points... Been a wile I have to check. Pretty sure I wired up the new alt and wireing all new wire. New key switch, New amp gauge.
Old coil off my 400. hmmmm wonder. I thought it was good. Old guy made my 400 run just by jiggling a wire. Of course after I replaced every thing related.
Any way give me some info on no spark conditions.
If I can get spark I think that old girl may run.
Only been in my shop for 3 years now. Time to get out!!!

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scruffyia

07-06-2005 11:27:41

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Re: 300 question. in reply to Kelly C, 07-05-2005 20:14:38

When my M acts up I take a little tester and start at the ignition switch and work to the sparkplugs. I make sure power is getting to the ignition switch, turn on the switch, make sure it's getting through the switch with it turned on, then I check the connections at the coil to make sure they are getting juice, and so forth. If I find juice is getting to one thing but can't get juice out of it, like juice getting to the coil but nothing coming out of it, I replace the part.

The alternator doesn't play a part in getting spark. Meaning even if your alternator isn't working, with a good battery the tractor will turn over and start and run until the battery goes dead. So a no spark condition is something between the battery and the spark plugs.

later,
scruffy

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