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Author Topic: 71 CT1 175 2-Stroke  (Read 11963 times)

Offline tete

  • Posts: 91
Re: 71 CT1 175 2-Stroke
« Reply #30 on: May 04, 2013, 21:39:13 »
I would love to find me one of these.  It seems everyone finds the rad little smokers.

Look forward to seeing the finish product. 


Offline RobbieCampbell

  • Posts: 2
Re: 71 CT1 175 2-Stroke
« Reply #31 on: May 06, 2013, 13:47:13 »
I have this exact bike that I just got in the garage. I plan on doing a complete custom Cafe build with it. I have really enjoyed reading through this thread and look forward to seeing what you do with it in the future. I'll post pics of mine as I get them. This is the only place I've found on the internet of anybody building one of these little bikes. They're so fun. I was curious what sprocket combo you're going with? I want mine to do the ton, without losing a lot of bottom end. And are you keeping the stock suspension, or upgrading for the added speed?Also, are you sticking with the stock carburetor, or something aftermarket? Thanks for the inspiration. I look forward to hearing back from you!!!!

Offline flon3y

  • Posts: 16
  • 2strok'n
71 CT1 175 2-Stroke
« Reply #32 on: May 08, 2013, 15:27:51 »
I look forward to seeing yours, I haven't seen many builds of these bikes mostly restorations.  Make sure to check out yamahaenduro.com.  I ended up with a 14/43 final drive as it is what I could find available but I don't think I'd go a lot taller as I put run up and down Seattle's hills with two bodies pretty regularly.  The 2t has good hp but seriously lacks torque.  I have only re-jetted the carbs but if I swap in a cdi and raise the compression then something with more flow might be in order.  The suspension is adequate as is but I'd  like to swap out the forks for something stiffer and maybe extend the swinger some.  Very cushy with the dirtbike springs makes rough roads very manageable.

I have to take my time with this bike as it's my daily rider and only bike.  Can't really afford to have it unrideable for more than a day or two.
« Last Edit: May 08, 2013, 15:34:17 by flon3y »

Offline RobbieCampbell

  • Posts: 2
Re: 71 CT1 175 2-Stroke
« Reply #33 on: May 10, 2013, 17:37:06 »
I just got it in the garage, torn down to the frame. Now I'm researching options and talking to the guys in the local vintage club about mods. I think I want to get a bigger motor for it. I am 6'4" and around 230 lbs so I want to be able to ride highway speeds without worry. I registered with yamahaenduro.com, but I haven't been able to figure out how to navigate the site. I'll be posting pics as I get more done. I'll keep ya posted!!

Offline flon3y

  • Posts: 16
  • 2strok'n
Re: 71 CT1 175 2-Stroke
« Reply #34 on: May 20, 2013, 22:36:46 »

Offline flon3y

  • Posts: 16
  • 2strok'n
Re: 71 CT1 175 2-Stroke
« Reply #35 on: Jun 19, 2013, 01:29:43 »
Not a lot of updates, just lots of sunny riding lately!  Passed 6500 miles on the odo today, meaning I've put over 4k on it over the past year since I started riding it.


Offline flon3y

  • Posts: 16
  • 2strok'n
Re: 71 CT1 175 2-Stroke
« Reply #36 on: Mar 06, 2019, 18:01:14 »
After a long hiatus I think it's time to resurrect this project. I acquired a BMW R65 last summer that has taken over as the primary fair weather transportation. As such I think it's time to dig into the Yamaha to make it a little more fun. My goal isn't to recreate the bike, but to make an updated version of what it was. Most of the parts are ordered, the big remaining question is if I should  keep it more cafe/street oriented or take it a more VMX route and put knobbies and high bars on it. Opinions?





I'm in the midst of converting it to 12V/180W using a Vape conversion kit now. I'm also stripping the entire old harness and creating a new one from scratch using modern best practices. For the time being I intend to run without a battery but might add one in the future if the electronics seem to need it.


The R65 for good measure