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Old 03-08-2010, 08:02 PM   #1
Valleyrider OP
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1968 Yamaha DT1 Treasure/Trash?

Found this on Craigslist. Kinda suffering from PMS (Parked Motorcycle Syndrome). Raced a 1969 Suzuki TS250 back in the late '60s.
Moment of weakness and I brought this home...
Plan is to build a period type shorttracker. Keep it as much '60s as possible.




It had been repainted and also had an special shock damper on the kickstart lever for the dreaded kick back..

Someone made sure that the mag cover was on and sealed to keep moisture out...


More to come...
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Old 03-08-2010, 08:20 PM   #2
Jimmy the Heater
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Not too shabby considering. Tho the mag/points scare me! Good luck!!!!
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Old 03-08-2010, 08:25 PM   #3
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Quote:
Originally Posted by Jimmy the Heater
Not too shabby considering. Tho the mag/points scare me! Good luck!!!!
This will be a real "Old School" shorttracker.
Coils will go away and the point cam will be punched out of the flywheel.
I'm going to do a total loss ignition system where a 12 volt battery, points and ignition coil are all that's there.
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Old 03-08-2010, 08:43 PM   #4
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The light of day has done nothing for the looks of this one...




Some of the finer points that the light of day revealed...




It has a compression release!! After looking at the head, it seemed different than the DT's I remember from those days. The spark plug threaded into the head from the left side. This one is straight in from the top...
More on this a little later.

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Old 03-08-2010, 08:52 PM   #5
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DTs ?

Wow you are in for a lot of work! I remember back in the day the hot trick for those old DT1s was to cut the down tubes on the frame and put in a 2" spacer. It lowered the engine and made it handle a lot better.
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Old 03-08-2010, 09:00 PM   #6
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Starting to get stuff taken off. Getting ready to clean and paint...



Looking at the head and cylinder, there is something different here.
Time to take a look...



Single ring piston...



Looking at the cylinder bore, there are marks on the cylinder wall,
but not normal seizure marks...?? A magnet confirms my hunch.
It's a chrome lined GYT cylinder and GYT head!!

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Old 03-08-2010, 09:04 PM   #7
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Quote:
Originally Posted by bsbiker
Wow you are in for a lot of work! I remember back in the day the hot trick for those old DT1s was to cut the down tubes on the frame and put in a 2" spacer. It lowered the engine and made it handle a lot better.
Work.... HA... Yea your right!
I thought about lowering/adding to the frame, but I think I may wait on that at this point. Maybe in the future.
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Old 03-08-2010, 09:16 PM   #8
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Some degreasing and scrapping to get the heavy crap off the frame.



Simple Green won't even cut some of this stuff, and the pressure washer failed to get the heavy caked on guck.



Time to visit my local sandblaster...



And in keeping with my cheap@$$ motto for this project, I rattlecan it...

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Valleyrider screwed with this post 03-09-2010 at 10:01 AM
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Old 03-08-2010, 09:23 PM   #9
Barebow
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Go to YAMAHAENDURO.COM and you'll get all the info you could ever need. Great bunch of guys and a wealth of knowledge on the DT.
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Old 03-08-2010, 09:25 PM   #10
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Quote:
Originally Posted by Barebow
Go to YAMAHAENDURO.COM and you'll get all the info you could ever need. Great bunch of guys and a wealth of knowledge on the DT.
Thanks, went there and registered 2 weeks ago... bout time I got the bike/project.
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Old 03-08-2010, 09:33 PM   #11
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I rode a stock 72 DT-1 back in the day,ill handling would be a polite way to say it. Heavy ft end plowing tank slapping also come to mind.
I used it as a practice bike, when I jumped on my 200 Bultaco off the DT1 it was easy to go fast on the Bul. They do look neat now a days when their all shined up.
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Old 03-08-2010, 09:46 PM   #12
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Quote:
Originally Posted by Foot dragger
I rode a stock 72 DT-1 back in the day,ill handling would be a polite way to say it. Heavy ft end plowing tank slapping also come to mind.
I used it as a practice bike, when I jumped on my 200 Bultaco off the DT1 it was easy to go fast on the Bul. They do look neat now a days when their all shined up.
The '69 TS250 I rode was about.. no, worse than a DT1 in handling, weight, and power.
If you check my flickr link in my signature, the TS185 I rode gave the 200 Sherpas a bad time back then.. and it handled great!!
Hope to get the DT1 shining soon!
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Old 03-08-2010, 10:01 PM   #13
bk brkr baker
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Whatever you do with the bike, its a good deed you're doing by saving it. But, before you get in too deep ,try to find a copy of Little Fauss and Big Halsy. Cool bike movie and you're Yamaha was one of the STARS.
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Old 03-08-2010, 10:18 PM   #14
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Quote:
Originally Posted by bk brkr baker
Whatever you do with the bike, its a good deed you're doing by saving it. But, before you get in too deep ,try to find a copy of Little Fauss and Big Halsy. Cool bike movie and you're Yamaha was one of the STARS.
If you remember that movie, you gotta be old..
It was a great promo for Yamaha. They had some roadracers in the movie as well.
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Old 03-08-2010, 10:51 PM   #15
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That's a nice project you've got going there. In regards to Little Fauss and Big Halsy, a quick Google video search finds the entire film available for free streaming. Quality's a little low, but the Johnny Cash song over the intro is awesome if nothing else... back to the bike, anyways
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