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I bring you "HORSE TURDS"

22 Oct 2020 16:36
Clegg
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I bring you "HORSE TURDS" #1
Interesting barn find story. Last week I came across an ad on CL for a 1982 XT250. Original owner that had parked it in a barn for many years.
I made contact with him and drove an hour in the country to see it. The bike was actually in a horse stall with the front wheel removed from the bike. I had to assemble the front tireless rim to the bike in what I am guessing ancient horse crap. (pretty dried up) gross. I have affectionately named it horse turds.

Anyway, I had ordered a carb kit and painted the exhaust system with high heat paint. I finally today got it running and as the engine idled there was smoking from what I figured was the fresh paint on the exhaust, but it became worse as the bike ran. Upon further investigation it was the rectifier smoking.

Would the smoking rec be caused by a bad voltage regulator? The lights seemed to function fine and I had installed a new 6 v battery.

1971 SL350, 1973 Bultaco Matador, 1978 XS650, 1979 MX175, 1982 XT250, 1982 GS650, 1982 CB450T HAWK

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23 Oct 2020 02:11
RT325
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I bring you "HORSE TURDS" #2
She's a Beauty. Rectifier is probably just poohed & nothing more. replace the connectors on the loon as likely corroded or been fizzing from pad connection. Being that it's a "6 volt" system with a single wire regulator & separate rectifier i'd think even if the regulator was faulty it'd only overcharge the battery but not fry the rectifier. I used one of those Yamy rectifiers on my Honda TRX300 quad plus a single wire 12volt regulator & is working well.
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23 Oct 2020 06:05
MarkT
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I bring you "HORSE TURDS" #3
Likely just a defective rectifier... but make sure you didn't accidentally reverse the battery connections.

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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23 Oct 2020 16:34
Clegg
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I bring you "HORSE TURDS" #4
Thanks for the replies. I went to check the wiring and as I tried remove the connectors, the terminal broke away from the rec..I just ordered a new one. Just to be safe, I am going to replace the wire connectors.
Which side of the rectifier should the red wire go to?

1971 SL350, 1973 Bultaco Matador, 1978 XS650, 1979 MX175, 1982 XT250, 1982 GS650, 1982 CB450T HAWK
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23 Oct 2020 17:57
MarkT
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I bring you "HORSE TURDS" #5
The connectors in the stock harness and on the rectifier are male and female so you can't mix the wires up.

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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23 Oct 2020 21:49
shyted
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I bring you "HORSE TURDS" #6
Clegg, well that's a Yorkshire name if ever i've heard one!
That's not something you find everyday in horse crap is it ,but it's good when you do.
Also, it's in quite amazing condition considering it's storage method.
Regarding the smoke. I had a Honda RC30 which had been stood in a garage for a few years . A similar thing occurred on that . The connector to the rectifier melted and the ensuing smoke cloud had me making my own horse turds. It melted the connector and shroud. Bizarrely that and the alternator connector had corroded up and caused a resistance but only on the one wire.
Have all the connectors apart and get some servicesol contact cleaner (or whatever you use in the US) and just check the earths too.
The problem with 6V is any resistance at all can give problems as the potential behind it is low.
Nice find .
Regards Ted.
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