Posted by rrlund on April 24, 2016 at 13:37:01 from (162.250.25.193):
Anybody got a clue on this one?
The starter on my Yamaha Moto 4 250 started groaning when I try to start it. Eventually it would spin over and start. The other night I figured I'd better do something about it. I had what looked like an identical starter off a Moto 4 200. I put that one on and it wouldn't work at all. I hooked it to a battery with the jumper cables,still nothing. I took the original apart and it had a lot of oil in it. I cleaned it all up,put it back on and it started right up. I rode it,shut it off and it wouldn't start again. I took the other one apart,it had oil in it too. I cleaned that one up,wouldn't work. I ordered a new one but it's not here yet.
I had some time on my hands today,so I took both of them apart,cleaned everything up,took the best parts from the two and made one. I hooked that one to a battery with the jumper cables,negative ground,it spun. I put it back on and it was spinning the wrong way. I took it off,hooked it back up to the jumper cables,positive ground and it spun the right way.
I tried every possible combination of armature and field housing,got the same results every time. The plastic was partially melted in one end cap,so that was the only thing I couldn't try swapping out. No matter what I did,it spins backwards when I hook negative ground or put it back on the machine. I haven't had any other wires unhooked.
Last time I put it back on,I hooked the jumper cables right to the starter,positive ground and it started. Shut it off,turn the key right back on,push the starter button,it spins backwards. I even tried switching the cables on the battery in the machine and it blew a fuse.
I'm stumped. If the new starter turns backwards when it gets here,I'm not gonna be a happy camper.
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