×
Pictures Posting Not Working (12 Jun 2023)
Picture uploads is again unavailable. We are working on the problem. Thanks for your patience.
Makotosun
69 CT1 Clean Up
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
I have enjoyed working on this bike in particular. The reason is the original owners live near me and I talk to them all the time in passing. Before this bike, I was strictly business when buying bikes but I could tell the owners were sentimental about their bike. The bike was actually titled in her name and was largely used by her.
The plan is I will finish "cleaning up" the bike, then ride it over for a view and ride. He has stopped by not less than 5 or 6 times to see what I was working on since I bought it. Is that great or what?
This is what I enjoy about this bike.
That is NOT where this ends!! He has a BSA 441 MX. The 441 was a pure work of art, maintained VERY clean.
The plan is I will finish "cleaning up" the bike, then ride it over for a view and ride. He has stopped by not less than 5 or 6 times to see what I was working on since I bought it. Is that great or what?
This is what I enjoy about this bike.
That is NOT where this ends!! He has a BSA 441 MX. The 441 was a pure work of art, maintained VERY clean.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: MarkT, Swoop56, Snglsmkr, Schu, Ht1kid
25 Jan 2026 12:21
#11
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
getting frame ready for engine. always more cleaning to do. still waiting on friction disks, but won't be putting cover on until I'm sure clutch is functional.
This image is hidden for guests.
noted which orientation and thickness of old friction (3.90mm) and drive plates (1.67mm). prev owner had shims on screws to tighten springs. started with drive plates first at base. bought new springs, and probably won't shim the pressure plate spring screws as was prev done.
This image is hidden for guests.
This image is hidden for guests.
Please log in or register to see it.
noted which orientation and thickness of old friction (3.90mm) and drive plates (1.67mm). prev owner had shims on screws to tighten springs. started with drive plates first at base. bought new springs, and probably won't shim the pressure plate spring screws as was prev done.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: MarkT, Schu
29 Jan 2026 18:50
#12
Please Log in or Create an account to join the conversation.
- MarkT
-
- Online
- Site Supporter
-
- Posts: 14779
- Likes received: 11080
Replied by MarkT on topic 69 CT1 Clean Up
That clutch needs to end with a metal drive plate going on last. Don't follow the parts diagram.
There is an cutaway engineering drawing in the Service manual that shows the correct assembly.
There is an cutaway engineering drawing in the Service manual that shows the correct assembly.
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: Snglsmkr, Ht1kid, Reed valve Richards
30 Jan 2026 09:04
#13
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
Appreciate the info. I remember you posting this previously and installed as you stated w/both the DT360A and DT125A most recently. Both were successful. Still waiting on friction plates for the CT1.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
30 Jan 2026 13:00
#14
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
This image is hidden for guests.
Please log in or register to see it.
but but the topside looked fine.
This image is hidden for guests.
Please log in or register to see it.
I have foot peg covers for these, but need to check out the spring setup. One has a spring, the other not.
This image is hidden for guests.
Please log in or register to see it.
57 years of build up. the clean up went well especially on this part.
This image is hidden for guests.
Please log in or register to see it.
I still have to pull the swingarm, clean and prep. The main frame will see some work too.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: MarkT, Schu, Reed valve Richards
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
Just keeping myself honest today. I could have bought a whole toolbox for $10 on ebay, but was fun working w/the metal.
This image is hidden for guests.
made corrections and used the metal as a shadow.
This image is hidden for guests.
seemed like a good place to accept the repair.
This image is hidden for guests.
Rustoleum. $8.99 /can. Thank you.
This image is hidden for guests.
This image is hidden for guests.
Please log in or register to see it.
made corrections and used the metal as a shadow.
This image is hidden for guests.
Please log in or register to see it.
seemed like a good place to accept the repair.
This image is hidden for guests.
Please log in or register to see it.
Rustoleum. $8.99 /can. Thank you.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: MarkT, SKYDANCER46, Snglsmkr, Schu, Ht1kid, pahiker
03 Feb 2026 17:08
#16
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
Ok, today a few surprises. Was checking over rear wheel when I found a spoke put in wrong. Tire and tube need replacement. looking around at spokes.
time for clean up.
This image is hidden for guests.
ok, looking a little better.
This image is hidden for guests.
rut roh
This image is hidden for guests.
ok, back on the other side, but noted while doing this, a liner, tube and tire probably a good idea.
This image is hidden for guests.
before removal
This image is hidden for guests.
can you see the number of teeth?
This image is hidden for guests.
cleaned the hub, but found so pry marks from prev work.
This image is hidden for guests.
and this is that caked on stuff not just grime.
This image is hidden for guests.
This image is hidden for guests.
first clean
This image is hidden for guests.
few of the small parts.
This image is hidden for guests.
time for clean up.
This image is hidden for guests.
Please log in or register to see it.
ok, looking a little better.
This image is hidden for guests.
Please log in or register to see it.
rut roh
This image is hidden for guests.
Please log in or register to see it.
ok, back on the other side, but noted while doing this, a liner, tube and tire probably a good idea.
This image is hidden for guests.
Please log in or register to see it.
before removal
This image is hidden for guests.
Please log in or register to see it.
can you see the number of teeth?
This image is hidden for guests.
Please log in or register to see it.
cleaned the hub, but found so pry marks from prev work.
This image is hidden for guests.
Please log in or register to see it.
and this is that caked on stuff not just grime.
This image is hidden for guests.
Please log in or register to see it.
This image is hidden for guests.
Please log in or register to see it.
first clean
This image is hidden for guests.
Please log in or register to see it.
few of the small parts.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
decided to blast the swingarm and chainguard. May still need to clean up the airbox. looking that over today.
This image is hidden for guests.
sprayed muffler, exhaust header and cleaned up the chrome.
This image is hidden for guests.
I'll be replacing the cover, blasting the base, fixing up foam and move forward
This image is hidden for guests.
This image is hidden for guests.
This image is hidden for guests.
Please log in or register to see it.
sprayed muffler, exhaust header and cleaned up the chrome.
This image is hidden for guests.
Please log in or register to see it.
I'll be replacing the cover, blasting the base, fixing up foam and move forward
This image is hidden for guests.
Please log in or register to see it.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: Schu, Ht1kid, Pete-RT1
07 Feb 2026 16:11
#18
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
paint testing old sprocket. Note this is not fender color.
This image is hidden for guests.
This image is hidden for guests.
I usually don't bat an eye at bike toolbox's but this one needed help.
This image is hidden for guests.
This image is hidden for guests.
seat latch base for dt360. been wanting to finish this for a while. found it in blaster cabinet from last project.
if someone has a project and wants it, let me know.
This image is hidden for guests.
swingarm...seems somebody got over-spray on something while painting w/primer.
This image is hidden for guests.
engine shield. tried to take out as many dents as possible, but there are still a few.
This image is hidden for guests.
This image is hidden for guests.
Please log in or register to see it.
This image is hidden for guests.
Please log in or register to see it.
I usually don't bat an eye at bike toolbox's but this one needed help.
This image is hidden for guests.
Please log in or register to see it.
This image is hidden for guests.
Please log in or register to see it.
seat latch base for dt360. been wanting to finish this for a while. found it in blaster cabinet from last project.
if someone has a project and wants it, let me know.
This image is hidden for guests.
Please log in or register to see it.
swingarm...seems somebody got over-spray on something while painting w/primer.
This image is hidden for guests.
Please log in or register to see it.
engine shield. tried to take out as many dents as possible, but there are still a few.
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: Schu, pahiker
09 Feb 2026 19:51
#19
Please Log in or Create an account to join the conversation.
- pabdt
-
Topic Author
- Online
- Platinum Member
-
- Posts: 699
- Likes received: 503
Replied by pabdt on topic 69 CT1 Clean Up
Tightened spokes, trued wheel, clean wheel chrome. Looks good there. In case anybody was curious, how the original compared to the new tire. The new one is a Shinko Trail Tire 4.00x18 vs 3.25/3.50x18 that was on the bike. When I'm done and have it together, I'll try overlap the pics. I have not got to the front yet.
Also keep in mind the original tire was worn out, so the size disposition is slightly less.
Rear Wheel
This image is hidden for guests.
Rear Wheel, Shinko 4.00x18
This image is hidden for guests.
Front Wheel, Shinko 3.50x18
This image is hidden for guests.
Rear Wheel
This image is hidden for guests.
Rear Wheel, New and Old Tires. 4.0x18 and 3.25/3.50x18
This image is hidden for guests.
Also keep in mind the original tire was worn out, so the size disposition is slightly less.
Rear Wheel
This image is hidden for guests.
Please log in or register to see it.
Rear Wheel, Shinko 4.00x18
This image is hidden for guests.
Please log in or register to see it.
Front Wheel, Shinko 3.50x18
This image is hidden for guests.
Please log in or register to see it.
Rear Wheel
This image is hidden for guests.
Please log in or register to see it.
Rear Wheel, New and Old Tires. 4.0x18 and 3.25/3.50x18
This image is hidden for guests.
Please log in or register to see it.
________________________________________________
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
1969 Yamaha CT1 175
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
Next…196x-197x Yamaha something.
The following user(s) Liked this Post: Reed valve Richards
Please Log in or Create an account to join the conversation.
Moderators: yamadmin, Makotosun, DEET, Vinnie, James Hart
