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First, has this starter ever started the tractor??? Oh ya, life isn't fair sometimes... we all experiences like yours. the day I brought my JD70 home to work on, withen 2 hours, one of the M's tires went flat... It's funny looking back on it, but after I aired up the tire and tried to start it and move it up to the garage to jack it up and pull the tire and it wouldn't start I didn't think it was too funny. That M had started every time without hesitation for years until that day... Funny how things work or don't sometimes.... but it's not funny until a few days later... Anyway, I'd take the battery cables off the battery, clean them up, and put them back on the battery and make sure they are tight. A bad or loose battery connection would also cause a low amp condition, even with a good battery. Also check where you're ground cable connects to the tractor. Be sure it's tight and making a good connection. If this starter has never started the tractor it could be it's not lining up with the gear and needs shimmed or something. I'm just going off of other starter experience I have, unfortunatly (or I guess fortunately for me) my M's starter has worked flawlessly. But I've shimmed starters on other motors to get the starter and ring gear to mesh properly. With the starter on the tractor can you move the gear forward out of the starter manually and make it engage the ring gear? That would tell you if they are even lined up. Regardless off all of this though, this is something you can fix. If the ring gear was worn you'd know by looking at it. So take a deep breath and count your blessings. You can fix this. After you can determine what's wrong the fix will be easy. So first I'd check all the battery connections, clean if corroded, make sure they're tight. Second I'd try to determine if the starter gear and ring gear are lined up so that the starter gear can engage the ring gear. If they aren't lined up the starter gear will hit and grind on the front of the ring gear. I'm sure you'll get more help from someone who's had a bad M starter, but I wanted to know I feel your pain. later,
scruffy
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