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What is my DT100? :)

01 May 2019 02:57 04 May 2019 17:33 by clives. Reason: Change title to reflect new information
clives
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What is my DT100? :) #1
Hello!
I've bought a bike - www.trademe.co.nz/Browse/Listing.aspx?id=2046095036 - and I'm wondering:
What year is it?
What model is it?
What are the best things I could do, when I get it home next week?

I plan to just get it going, get it wired up with some lights, and try and get it road registered, for the sheer fun of it.

Thanks!!!!!

Clive

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01 May 2019 04:02
Swoop56
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What is my DT100? :) #2
Going by the tank , it's a 76 DT 100 C .
If you look up in the Tech Library , there is a list of VIN numbers ,
which should confirm this . You never know if someone has switched a tank
over in it's 40 + year life .
As you've bought it off Trade Me , I guess you're a Kiwi .
There's a few of us here . I'm based in Christchurch .

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01 May 2019 04:31 01 May 2019 04:44 by RT325.
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What is my DT100? :) #3
It's a HT1 90cc Piston Port from 1970. rear shocks look longer than original & front forks look taller than stock but 'are steel lower sliders which is the early type forks except missing the guard lugs. Picture looks a bit squashed up to original size. Sold mine a year or so back but a pic of mine & others will be up here somewhere. Tank is off a later model DT100 or something. Specs below. 50mm bore size where the 100cc is 52mm. It's possible someone has found a 52mm piston like an L2G piston without windows to make it into a full 100 but you'll know if you look inside. I'm in Palmerston North NZ. Cheers.
Forgot the link to specification. yamaha-enduros.com/index.php/90cc-specs/69-ht1-ht2-1970-71
Another link to an HT1. www.mecum.com/lots/LV0115-204502/1971-yamaha-ht1-enduro/
Frame & engine number will tell what it mostly is with possibly other model parts fitted here & there.
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01 May 2019 10:32
clives
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What is my DT100? :) #4
Ah. That makes sense, I couldn’t figure out why photos of DT100s never had that pipe and looked a different dimension. Thank you!!!!

And look what I just found: previous owner too trying to ID it. www.vitalmx.com/forums/Old-School-Moto,2...ntified-1974,1277461

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01 May 2019 14:16
RT325
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What is my DT100? :) #5
Yep can see the HT1 by expanding the motor pic & numbers. Interesting link 'that'!!. I thought no-one had picked it put half way down someone nailed it. Cheers.

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03 May 2019 17:26
clives
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What is my DT100? :) #6
So: I've been on the hunt for something a bit like a 1960s trials scrambler thing to restomod for pottering to a cafe and up a trail.

I had a set of criteria: Must be road registrable, must be Japanese (spanners!) and must be 4-stroke. So then I saw the HT1 with DT100 tank and pounced - because it was 2-stroke and had no proof it was ever registered, haha.

Here's the thing I love most so far in my ownership journey: shared parts. Just picked up a couple of gaskets for the cost of a coffee and pastry - because they're the same gasket Yamaha has been using for 50 years. I <3 U Yamaha.

Re: getting it road registrable - has anyone had any luck with this? This isn't "deregistered" I have absolutely no proof of that.
Has anyone in NZ tried registering as a vintage vehicle or anything else?

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03 May 2019 18:00
clives
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What is my DT100? :) #7
Yep! Up in the Waikato :)

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04 May 2019 17:52
clives
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What is my DT100? :) #8
Got it home - checked fluids, repaired perished fuel line, twentieth kick... "bdffbdffbdffbdffphhh pop". Oh helllloooo - few minutes later: ringadingding badadingdingding!!! :woohoo: :woohoo: :woohoo:

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04 May 2019 20:55
RT325
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What is my DT100? :) #9
Hey good one. Always exiting when it first lights up--even better when it keeps running lol.
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06 May 2019 01:31
clives
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What is my DT100? :) #10
Interesting things...
KS250 pipe
Mikuni carb (how to ID?)
Engine and frame match
I love the second defence fuel tap
...and the chain rub on swing arm
Can anyone help me ID front forks, at stanchions are great, clean, dust caps need replacing
Frame looks well painted
All in all, tidily our together.

Uglier things...
Cables are horrible
Tank fit a bit yuck.
Rear hub looks weepy.

Surely that pipe can’t be the best thing in the world?

Thanks all!!!


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