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1973 RT3 360 Wiring
- Burcky
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1973 RT3 360 Wiring was created by Burcky
Hello all, I was given this 73 rt3 and I am struggling putting it back together after restoring especially with the wire harness. There is a red wire that comes up near the battery and 2 more just aft of it a few inches. I know one is for the battery but I don't see where the other two are connected.
Can anyone assist?
Thanks
Can anyone assist?
Thanks
02 Aug 2025 16:54
#1
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- MarkT
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Replied by MarkT on topic 1973 RT3 360 Wiring
Female reds go to fuse holder, still available new from Yamaha.
Male red to battery.
cdn.partzilla.com/cdn-cgi/image/width=32...NDE2NzA-ee22e155.jpg
Male red to battery.
cdn.partzilla.com/cdn-cgi/image/width=32...NDE2NzA-ee22e155.jpg
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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02 Aug 2025 17:34
#2
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- Gr8uncleal
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Replied by Gr8uncleal on topic 1973 RT3 360 Wiring
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As Mark says. Also, don't connect anything to the single black female wire that exits the harness from the stator wires, about half way up (roughly alongside the carb) - the bike won't run if you do!
Re pictures, you'll need to use a third party host, such as Imgur, and this site only allows this after you've made a dozen or so posts.
02 Aug 2025 22:32
#3
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- Sneezles61
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Replied by Sneezles61 on topic 1973 RT3 360 Wiring
And, if you don’t have a schematic, up at the top, there is a tech library. There you should be able to find one for your bike. Do spend time just looking at it, chasing the wires around.
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03 Aug 2025 06:24
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- Burcky
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Replied by Burcky on topic 1973 RT3 360 Wiring
Thank you all, much appreciated
I guess the black wire with female bullet that comes in near battery is for battery ground or flasher?
I guess the black wire with female bullet that comes in near battery is for battery ground or flasher?
03 Aug 2025 10:38
#5
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- MarkT
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Replied by MarkT on topic 1973 RT3 360 Wiring
See post #3 caution about connecting single random harness female bullet black wire to a ground.
Any grounds in that area are bundled with a couple other wires like yellow and blue (taillight harness) or dark green and dark brown (rear flasher lamps harness).
Battery and flasher grounds likely have their own little pigtail wires made with a bullet connector and a ring terminal that bolts to the frame.
Any grounds in that area are bundled with a couple other wires like yellow and blue (taillight harness) or dark green and dark brown (rear flasher lamps harness).
Battery and flasher grounds likely have their own little pigtail wires made with a bullet connector and a ring terminal that bolts to the frame.
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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- Burcky
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Replied by Burcky on topic 1973 RT3 360 Wiring
Got back on the bike today, all lights working but there is a chime coming from flasher when turn signals are on. I replaced oem flasher with after market and now there is an annoying chime. Is this right?
17 Aug 2025 16:44
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- MarkT
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Replied by MarkT on topic 1973 RT3 360 Wiring
If you bought an aftermarket flasher with an "annoying chime feature" I would expect that.
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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17 Aug 2025 19:30
#8
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