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If I put my voltmeter to one of the whites coming off of the XJ alternator while running, what should I see?
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"Galaxy" 1982 XJ1100J, 1983 XV handlebars, new fusebox, homemade SS wind screen and SS muffler heat shields, homemade grab bar extension and luggage rack. XS750 140 mph speedo, '81 Venture oil cooler, V-Max ACCT, Yahman YICS Eliminator, 1st and 2nd gear Dremel fix. -
Meter needs to be on AC, you should see somewhere around 15 VAC between any 2 white wires.
Let us know what you have.Last edited by bikerphil; 09-26-2023, 10:47 PM.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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I have 4.5 AC volts.between the white to the tach and the white going to the computer monitor"Galaxy" 1982 XJ1100J, 1983 XV handlebars, new fusebox, homemade SS wind screen and SS muffler heat shields, homemade grab bar extension and luggage rack. XS750 140 mph speedo, '81 Venture oil cooler, V-Max ACCT, Yahman YICS Eliminator, 1st and 2nd gear Dremel fix.Comment
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Ok, what seems to be the problem with the bike, not charging properly?
May want to check the voltage at the triple white wire connector at the voltage regulator. The XJ alternator is a brush style where the brushes can wear out.Last edited by bikerphil; 09-30-2023, 10:06 PM.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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Found it. In my search for issues my cheap Wal Mart battery was causing, I had disconnected the whites connector and reconnected it with one of the male blades doubling up on another. Too many times I am my own worst enemy, and I need better connectors.
"Galaxy" 1982 XJ1100J, 1983 XV handlebars, new fusebox, homemade SS wind screen and SS muffler heat shields, homemade grab bar extension and luggage rack. XS750 140 mph speedo, '81 Venture oil cooler, V-Max ACCT, Yahman YICS Eliminator, 1st and 2nd gear Dremel fix.Comment
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You hate when that sort of thing happens! Then again if it doesn't cause any other damage it's a cheap learning experience.1980 XS1100G
I identify as a man but according to the label on a package of Stauffers Baked Lasagne I'm actually a family of four!Comment
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With all due respect, how on earth were you able to plug that connector together like that and not notice something was wrong?2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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Cheap aftermarket connectors. The blades are wobbly in there and didn't put up a fight."Galaxy" 1982 XJ1100J, 1983 XV handlebars, new fusebox, homemade SS wind screen and SS muffler heat shields, homemade grab bar extension and luggage rack. XS750 140 mph speedo, '81 Venture oil cooler, V-Max ACCT, Yahman YICS Eliminator, 1st and 2nd gear Dremel fix.Comment
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Yep, I see. Another case of inferior made in China copy crap.
I bought the good ones before from Tony at Oregon Vintage MC parts, maybe he still has them.
http://www.oregonmotorcycleparts.com/connectors.html2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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