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Makotosun

1974 DT360 Disassembly and Restoration

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Replied by MarkT on topic 1974 DT360 Disassembly and Restoration

Good thinking and nice repair job!  

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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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27 Jun 2025 22:13 #241

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Replied by Sneezles61 on topic 1974 DT360 Disassembly and Restoration

Just the patients to remove boogered up stuff.. repair with your ability sez a lot.. very nicely done!
28 Jun 2025 05:21 #242

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

...and the last "boogered" up part of the exhaust...I HOPE.

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If anyone is interested, the thread part is M6 x 10mm. drill, tap, threaded is how I replaced it. I would have welded it on, but space limited.

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1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


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28 Jun 2025 17:29 #243

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Replied by MarkT on topic 1974 DT360 Disassembly and Restoration

Excellent job!  
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
28 Jun 2025 17:50 #244

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Replied by Schu on topic 1974 DT360 Disassembly and Restoration

I think the previous owner of that 360 was gifted a “rattle gun” and its ability to snap fasteners.
Schu

CT1B, CT1C, JT1, JT2, CT2, RT3, DT360A, GT80B, DT100B, DT125B, DT175B, DT175C, DT250B, DT400B, Z50

Someday, you'll own some Yamahas
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29 Jun 2025 06:38 #245

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Ok, it was so hot today that....yes, my Holter monitor even fell off. Did get a small amount of work done though.

Note, the instrument dampers for the pins I found at ACE Hardware, so I listed their size. Very inexpensive. I think I got the clips there but can remember about the metal cups.

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Guys, I want to thank DEET again for his work. It is clearly exceptional. The instruments are incredible just like the oil pump he restored. I have some rubber rings I need to clean up and install. Going to try and post up a night shot w/lights soon.

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Got these NOS turn signals from him COMPLETE with ALL necessary mounting hardware. Disclaimer: loose wires on turn signals/handle bars need securing.

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1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


The following user(s) Liked this Post: MarkT, swm, JayB, Snglsmkr, Schu, Ht1kid, Sneezles61, pahiker
Last edit: 29 Jun 2025 19:26 by pabdt.
29 Jun 2025 19:23 #246

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Update: Bike is basically complete so I thought I would put up a pic of it from today, sans a few sprocket and oil pump covers I need to put on. You know how it goes, had to crank it today. Keep in mind this bike is really 6 y/o. The resto started in 2019. I had some medical problems that slowed me a bit and then I guess I'm just slow anyway!

Mods: key on, you get all lights, has VAPE ignition, H4 Headlight hi/lo, SP96 Sleeper Pipe. The exhaust is raspy. I like it.  I wish I had not done the key on thing, but wanted power to test the bike's lights. I could have done that just wiring directly I guess. I may go in and remove the relay after a while.

I'll post some sunshine shots tomorrow and a video running, but here are a few to gaze at. This is my version of a resto. Intent was make it a clean, nice bike to ride. A lot of the parts on the bike I reused.

Note, head shield, muffler hold down parts on way. Was running on weedeater gas today plus the oil pump. I'll probably empty that and get a fresh batch of fuel for it Sun.

OIL PUMP INQUIRY: I ended up at 0.015" on the oil pump clearance, though book states max 0.010". It simply would not put out oil at zero throttle doing this and was low at WOT volume. Was high side of delivery at 200 strokes at 0.015". Thoughts on this?



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1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


The following user(s) Liked this Post: MarkT, swm, JayB, Snglsmkr, Schu, Ht1kid, Sneezles61
Last edit: 05 Jul 2025 20:20 by pabdt.
05 Jul 2025 20:01 #247

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Short video. Engine runs really well. I have not done a street check yet. Need to tighten up chain, change fuel, take this bike off NON OP at DMV.
youtube.com/shorts/1kMxxPkR9E8?feature=share

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1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


The following user(s) Liked this Post: mun, MarkT, Snglsmkr, Schu, Ht1kid, Sneezles61
06 Jul 2025 19:18 #248

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