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LT Coil

Posted:
Tue Apr 28, 2015 9:35 pm
by Scooterlam
On the way up a had a good blat pulled over for ten minutes then it wouldn't start
Usually checks changed cd,i cap,lead then stator.
Fired up and off I went .
Next morning it's dead again .
Multi meter out no resistance . Another stator in. Thanks Sean
On the way home after 400 miles an the stator I hole my piston.
Got the crank out to check over. Lit coil wrapping is toasty brown
Wasn't that colour when it went in.
Question is am I just plain unlucky or is there something I should be looking for.
Re: LT Coil

Posted:
Tue Apr 28, 2015 10:51 pm
by coaster
What does the resistance read like? Must say I've notices the paper wrapping being a bit brittle and brown but I guess it could just be normal but it shouldn't get that hot I wouldn't think

Re: LT Coil

Posted:
Tue Apr 28, 2015 11:07 pm
by Nelly
I think I'm reading this right, LT coil wrapping is brown. They are usually a sort of yellowish colour if I remember right?
If it's looking cooked then the LT coil is getting overloaded by something, maybe a dying CDI or a short to earth somewhere.
I had a problem a few years ago with an ignition switch that was conducting ever so slightly across the contacts which was putting extra load on my LT coil, thus cooking it. I don't remember it being discoloured though. I disconnected the switch until I got chance to put a new one in, which just so happened to be this year when I did the DC conversion. Nowt like leaving things!
I would try checking the resistance of the LT coil to see if it is reading below 500 ohms and take it from there.
Re: LT Coil

Posted:
Wed Apr 29, 2015 8:39 pm
by Scooterlam
Thanks guys,
comfirms my thoughts that theres two much demand on the lt coil.
I,ll test loom wire to earth with ignition on.
Re: LT Coil

Posted:
Sat May 02, 2015 12:57 pm
by Scooterlam
Checked out the loom wire and ignition all as should be.
all three stators I used that weekend are reading roughly 430.