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DT250B Tacho Cable required

01 Jul 2019 06:20
Mr Vegetable Trousers
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DT250B Tacho Cable required #1
Hi I am trying to find a tacho cable. I bought one but it will not fit in the mechanism on top of the gearbox, its too big, I think its for a DT250MX not for a "B"
I have googled around but everywhere seems to be out of stock. Not a really big deal but a "nice to have"
Fowlers dont have one and CMSNL dont either.
Does anyone have a lead on one?
Yamaha part number 4388356001
Thanks
Adam.

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01 Jul 2019 23:51
Yammiedodger
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DT250B Tacho Cable required #2
Hi, try eBay

Search for;

Yamaha DT 250 (Twin Shock) (Europe) 1974-1976 Tacho Cable (Each) 438-83560-01


Sent from my iPad using Tapatalk

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02 Jul 2019 00:16
Mr Vegetable Trousers
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DT250B Tacho Cable required #3
It’s worth a punt at that price but it still looks like the business end where it screws in to the tachometer fitting on top of the gearbox is too fat. Will order one and let you know.

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02 Jul 2019 03:16
Gr8uncleal
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DT250B Tacho Cable required #4
Mr VT

This one in the photo off CMSNL looks correct, as does the one that Yammiedodger referred to.

Thread into the crank case is 15mm, the knurl above it is 14mm and length of the inner cable approx. 820mm. Make sure you press the cable firmly into the crank case recess first, otherwise the thread might not "catch".

If you still think cable thread is too large, check out what the engine number is, just in case anyone has done a swap!

Good luck.

www.cmsnl.com/yamaha-dt360-1974-usa_mode...356001/#.XRsq5P2WxaQ

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02 Jul 2019 04:14
Mr Vegetable Trousers
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DT250B Tacho Cable required #5
Heres a pic of the top of the gearbox (before I cleaned it all up) showing the tacho drive.
All standard and original. I think...


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02 Jul 2019 04:37
MarkT
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DT250B Tacho Cable required #6
You could always check with DEET... or Enduronut...

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 Jul 2019 07:11
Gr8uncleal
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DT250B Tacho Cable required #7

Mr Vegetable Trousers wrote: Heres a pic of the top of the gearbox (before I cleaned it all up) showing the tacho drive.
All standard and original. I think...


That's a 10mm hex bolt head alongside it and so it looks to me the correct 15mm thread recess. Have you measured the diameter of the threaded end on the cable that you've got and think is incorrect?

Interesting that the engine number for your bike is stamped on the right hand side, whereas for my 1974 DT360A (which shares the same tacho cable) it is on the left.

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02 Jul 2019 07:35
Mr Vegetable Trousers
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DT250B Tacho Cable required #8
Next time im in the workshop I will get the vernier calipers out and measure.

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02 Jul 2019 15:25 02 Jul 2019 15:25 by Blackhat250.
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DT250B Tacho Cable required #9
Yes Mr V/t" Most cables on ebay are too short, [ dt250 400 mx] as the mono shock tacho drive is at the front of engine [ beside oil pump] ,for my twinshock,[ 513-000] DT400 I took the inner out of a H2 kawasaki, and cut up two of the ebay cable outers , to the correct leanth, . and joined them, the joint is below the tank ,so not seen ,,

If you aint mixin gas " you aint haulin Ass

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02 Jul 2019 18:10
Rick C.
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