facebook1 youtube1 twitter1 instagram linkedin1 pinterest1

NOTICE:  If you are not a free registered member of the site, you will not see the photos in the forum, and you won't be able to access our premium member content. Please consider joining our community! REGISTER AND MAKE THIS BOX DISAPPEAR!

×

Pictures Posting Not Working (12 Jun 2023)

Picture uploads is again unavailable. We are working on the problem. Thanks for your patience.

Makotosun

CT1/2/3 engine and frame differences

  • mwlockwood
  • mwlockwood's Avatar Topic Author
  • Offline
  • Premium Member
  • Premium Member
  • Posts: 59
  • Likes received: 57

CT1/2/3 engine and frame differences was created by mwlockwood

Hey all,

I have my CT1 and I have picked up a CT3 frame as I have the parts to make a roller and thinking about sourcing an engine for the CT3 frame. I will try and get a CT3 engine but what else would fit in there? What have others wedged in these frames?

The lower cradle was removed for a previous engine swap so ensuring OEM period concourse correctness isn’t an issue! Just a fun bike.

any info appreciated!
28 May 2021 07:39 #1

Please Log in or Create an account to join the conversation.

  • Posts: 14515
  • Likes received: 10726

Replied by MarkT on topic CT1/2/3 engine and frame differences

CT1 through CT3 have identical engine mounts as does model AT1 through USA 1976 DT125.

Close matches are 74-81 DT175 or 78-81 DT125.   77-79 IT175 fits in this category as well as YZ125 up to maybe 78 or 79.  Rear lower mount is different.

Check forum for thread on using a Yamaha Blaster engine...  that's probably what I'd consider.

 
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
The following user(s) Liked this Post: JayB, Gr8uncleal
28 May 2021 08:51 #2

Please Log in or Create an account to join the conversation.

  • mwlockwood
  • mwlockwood's Avatar Topic Author
  • Offline
  • Premium Member
  • Premium Member
  • Posts: 59
  • Likes received: 57

Replied by mwlockwood on topic CT1/2/3 engine and frame differences

Awesome thank you Mark. CT2/3 don't use the mounting 'plates' though it seems?

I also believe having the two side by side the CT1 frame is prettier naked!
28 May 2021 11:46 #3

Please Log in or Create an account to join the conversation.

Moderators: yamadmin, Makotosun, DEET, Vinnie, James Hart