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tractorman 
Orange Level
Joined: 22 Sep 2009
Location: west central wi
Points: 1046
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 Topic: B ignition question
Posted: 05 Aug 2022 at 1:17pm |
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My ole B is being ornery, it won't shut off with the on / off switch , i have to choke it off. won't start with the switch in but starts when pulled out. then won't shut down when pushed in again . i have a spare switch and it does the same thing. now what to fix that ? could it be both switches, one is brand new . Thanks
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Play on 38 B 49 WF , working on D14, D15 B10, Bee 12 B110. use 185 and 190
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steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 87632
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Posted: 05 Aug 2022 at 1:51pm |
If you have a distributor, the switch is used to CUT OFF THE POWER to the ignition coil... You can check that the switch is doing that...
If you have a MAGNETO ... the switch is connected to a wire that is on the terminal on the side of the mag... What the switch does is short the wire ( connect) to GROUND and kill the spark...
If your WIRE to the switch is good.......... then YES, your switch is the problem.
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Like them all, but love the "B"s.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 87632
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Posted: 05 Aug 2022 at 1:54pm |
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you can test the system by using a house light switch or toggle switch and connecting it temporary.......... or just take the two wires off the switch and PINCH them together or apart while wearing a glove.
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Like them all, but love the "B"s.
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Gary
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Joined: 13 Sep 2009
Location: Peterborough,On
Points: 5899
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Posted: 05 Aug 2022 at 6:58pm |
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Have you installed an Alternator along with a 12 volt battery ?
G
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tractorman
Orange Level
Joined: 22 Sep 2009
Location: west central wi
Points: 1046
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Posted: 06 Aug 2022 at 6:06pm |
it is an alternator gm 1 wire, the house switch doesn't work either.I did find i think on the alternator wiring there are 2 wires labeled r 1 and f 2 , i think i have them reversed , r 1 is going to the the terminal labeled bat on the alternator f 2 is going to the the ign switch, it starts and runs this way. does it make any difference ? should i reverse them and see. it seems to run and charge fine, just won't shut off with the switch .
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Play on 38 B 49 WF , working on D14, D15 B10, Bee 12 B110. use 185 and 190
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 87632
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Posted: 06 Aug 2022 at 7:06pm |
Yes, it makes a difference.. If you dont shut off the signal to the alternator, it can back feed to the coil and keep firing.. you also need a resistor / diode or idiot light in the #1 line.. i guess you have a distributor ignition ?
Edited by steve(ill) - 06 Aug 2022 at 7:08pm
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Like them all, but love the "B"s.
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tractorman
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Joined: 22 Sep 2009
Location: west central wi
Points: 1046
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Posted: 06 Aug 2022 at 9:29pm |
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thank you yes it is a distributor , i will switch the wires tomorrow , if theres no rain they are saying rain, i'll try a light or/esistor as well.
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Play on 38 B 49 WF , working on D14, D15 B10, Bee 12 B110. use 185 and 190
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steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 87632
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Posted: 06 Aug 2022 at 10:01pm |
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Like them all, but love the "B"s.
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