Help Choke motor sometimes has power - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 11-14-2002, 04:39 PM
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Help Choke motor sometimes has power

88 YJ. The engine starts easy some times, hard others. So far three times this scenario has happened. Drive for about 20 minutes after engine is completely warmed up. Before driving, the diagnostic port (from 258 primer)for choke has 12V and sometimes the wire to the choke itself does. After 20 minutes or so it runs rough and stalls. Choke is closed and won't stay open. Put a meter on the port tonight and the voltage was jumping all over and the wire to the choke had 0.2 volts. I have oil pressure and the guage seems to work. It runs well for a while (20-30 minutes) and then it starts to gag and stall. I'm going nuts! Anyone? Can you jump a wire from some other source to give the choke motor juice?
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post #2 of (permalink) Old 11-14-2002, 05:03 PM
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Re: Help Choke motor sometimes has power

I just checked it again after it sat for a while. I have 12V at the test port and 12V at the wire to the choke while it is running. Any clues? Seems it looses voltage after it is running for a while.
post #3 of (permalink) Old 11-14-2002, 06:51 PM
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Re: Help Choke motor sometimes has power

When I did my m/c 2100 upgrade I wired the choke to the ignition, so I know I have 12v all the time. Seemed like the best thing to do at the time and has worked fine for 2 yrs. like that.I understand some alternaters have a connection for choke which is something like 7v? The choke wouldn't open as fast at 7v.I didn't look for that on my yj.
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