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Makotosun

1974 DT360 Disassembly and Restoration

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Ok, decided to put tires on today. Found out that I ordered a 18" front tire for a 21" wheel. Got a new one on the way. Went with SR241 Shinkos, 3.00x21" and 4.00x18", both stock style tires.

Got steering head on. For those that haven't, they way I did it. Its an easy job, but the thought of those ball bearings rolling away...


1. I obtained 22 - 3/16" (Top) and 19- 1/4" (bottom) ball bearings from ACE hardware for a few dollars.

2. clean up and put steering head ball bearing races in freezer , then pull one out at a time and install. Gently tap in with a socket slightly smaller in diameter or steering bearing race installer. Recommend using a micrometer so you know how deep the race is seated.

2. Put lower bearings in using grease to seat them and then tie strap the lower triple clamp to the frame and do the top. With the bike disassembled pretty easy to just flip the frame over.

3. Favorite part of the day was refinishing the center triple clamp bolt.

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Pic of frame starting to come alive:

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Does anyone know which side is up the clutch damper rubbers under this part?

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


Last edit: 09 Oct 2020 19:06 by pabdt.
09 Oct 2020 18:59 #111

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

test fitting rear wheel for kickstand clearance. when I did the metal work on frame, I thought I fixed this. looks like more work needed.

Note, in this pic, what appears a normal "up" kickstand position. If you look closely, is not full up.

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This is full up. Next two pics a view from top and side. I have two choices. I can limit the travel of the kickstand up position
by adding a piece of metal on the nut side (inside frame) of the kickstand, that appears like a modified washer but extends under
the kickstand stop point OR bend the kickstand attachment point. Ideas?

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


Last edit: 13 Oct 2020 01:54 by pabdt.
12 Oct 2020 20:02 #112

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

...and the clean-up continues. powder coat next. (motor mount bolts, kickstand bolt and spring to be powder coated in "Super Chrome II", while kickstand, chain guards and motor mount bracket will be gloss black.

From last post, looks like I might leverage the attachment point and bend it to a working kickstand position.

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


Last edit: 14 Oct 2020 18:31 by pabdt.
14 Oct 2020 18:25 #113

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Replied by Pedalcrazy on topic 1974 DT360 Disassembly and Restoration


The rubber dampers have a slightly rounded backside that goes against the slightly rounded wheel hub. They don't fit quite right if you put the squared off side into the wheel hub. Look closely I think you'll see it.
1978 DT400E
1976 DT400C
1973 RT3
1971 RT1B
1968 DT1 (3)
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14 Oct 2020 18:45 #114

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration


Thanks for confirming that. As soon as I flipped them over, as you described, it slipped right on.
Adding an image to illustrate this.

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


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Last edit: 14 Oct 2020 20:23 by pabdt.
14 Oct 2020 20:07 #115

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Linking in this thread regarding swing-arm clearance.

yamaha-enduros.com/index.php/forums/74-7...arm-clearance#114976
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


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21 Oct 2020 21:23 #116

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Replied by mdscott on topic 1974 DT360 Disassembly and Restoration

Dang those hub are really bright, I gotta wear shades.
Thanks Mark
Roseville, Ca.

'03 ST1300
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22 Oct 2020 19:47 #117

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration


I sure hope they stay clean for a min or two...Trying to figure out what to do w/the engine. Its probably going to be a satin looking job with some black here and there.
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.


22 Oct 2020 22:38 #118

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

Bought a black sprocket on ebay and modified the color a bit. Wanted a 47 tooth sprocket, but could only find it in black.,,baked it with "Alloy Silver" powder. Lost the sprocket bolts.:Ugh

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


Last edit: 22 Oct 2020 22:45 by pabdt.
22 Oct 2020 22:39 #119

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Replied by pabdt on topic 1974 DT360 Disassembly and Restoration

when they say, "nut and bolt resto..." now I know what they mean. Shock mount bolts, handle-bars, kickstand pictured. A few extras in there.

Before:

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After:

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


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Last edit: 23 Oct 2020 15:20 by pabdt.
23 Oct 2020 15:18 #120

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