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RT1 Newb

  • Geiger
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RT1 Newb was created by Geiger

Hi everyone. I'm doing my best to restore a RT1 1970 360 and it's coming along really well! I'm looking for someone with more knowledge and experience than me about a couple of unobtainable bits and if there are alternative parts. Firstly, I cannot source a tacho cable at anything like a reasonable price and wondered if any DT cables would fit. It looks like the original was approx 850 - 900mm long, and the ends look pretty standard to me. Also, I could do with a decompession valve cover and a lower chain guard. Anyone know of any alternative parts from other bikes?
28 Mar 2021 12:07 #1

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Replied by MarkT on topic RT1 Newb

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 Mar 2021 12:25 #2

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Replied by MarkT on topic RT1 Newb

It might be me but I have trouble navigating the KDI site sometimes... 

Here's a direct link to the cable www.kdirepros.com/Tachometer-Cable-p/214-83560-00.htm

Or they have a complete set of cables for around $73 which is a great deal.
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 Mar 2021 12:32 #3

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Replied by Gr8uncleal on topic RT1 Newb

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 from the UK.

The decompression cover was also fitted to the RT2, RT3, DT360A (and probably DT400B & C), SC500, MX360, MX400 and YZ400. You can find info on shared parts on sites like Partzilla and CMSNL.

They can be quite expensive if listed individually on fleabay and the like. Conversely, if they are sold as part of a job lot, or attached to a poor condition used cable, they can be quite cheap - spread your net as wide as you can!
28 Mar 2021 12:35 #4

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Replied by Mauser on topic RT1 Newb

Pretty sure the lower chain guard was an option not fitted as standard :)
Yamaha RT2 360 ~ Honda XR650R ~ Yamaha DT175MX ~ Kawasaki KH400 ~ GPz550

28 Mar 2021 14:38 #5

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Replied by Geiger on topic RT1 Newb

OK, thanks for these ideas. I should have mentioned I am in the UK, and a 14$ cable can cost 60ish $ to get from USA or Canada.
28 Mar 2021 14:43 #6

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Replied by Gr8uncleal on topic RT1 Newb

Geiger wrote: OK, thanks for these ideas. I should have mentioned I am in the UK, and a 14$ cable can cost 60ish $ to get from USA or Canada.

Yep, Mauser, shyted et al and I have all been there and got the overdrafts to prove it!

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If the weight of the package will allow and if you ask nicely, some US sellers will change to a cheaper courier service. Also look on ebay.com - even though some sellers' default position is not to offer overseas postage, some are happy to if you ask.
29 Mar 2021 00:39 #7

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Replied by Geiger on topic RT1 Newb

Oh, I did message KDI and asked if they had a cheaper postage option, but they were adamant that USPS was cheapest. Then I found a site in Hollywood selling carb kits with postage to UK at about $14, not $60 and still with USPS. I did message KDI with this info but no reply up to now.
07 Apr 2021 12:38 #8

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Replied by Geiger on topic RT1 Newb

Anyway, if anyone can spare me a few minutes over the next few days and do a rough measurement of their tacho cable, with screw on fittings at both ends (Yamaha) and let me know which model they have if it's about 950mm I would really appreciate that.
07 Apr 2021 12:41 #9

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Replied by Pete-RT1 on topic RT1 Newb

I make the overall length of the inner cable 865mm.
Do you have a photo of your cylinder, I didn't think the RT-1 had a decompression valve until 1971, ie. the RT1-B.

  
 
Yamaha RT-1
Yamaha CT1-B
Yamaha CT1-C
Honda XR250
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07 Apr 2021 14:05 #10

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