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CT3 Carburetor

  • re5rotary
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CT3 Carburetor was created by re5rotary

Hi does anyone have a carb body or complete carb for a CT3 for sale, one of the posts for the float bowl pin has broken on mine?   regards Terry PS Im in New Zealand but do have a USA address it can be posted to
20 Feb 2021 19:21 #1

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Replied by Mothersbaugh on topic CT3 Carburetor

Not sure, but it seems to me there was a fix for that posted here recently. Anyone's brain remember that better than I?
20 Feb 2021 20:10 #2

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Replied by MarkT on topic CT3 Carburetor

Do you have the code stamped in the body?  I will look and see what I can find.
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
20 Feb 2021 20:33 #3

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Replied by RT325 on topic CT3 Carburetor

If ya stuck it'll work ok one post if you can organise a pin with a head or small screw & thread it into the good post leaving the head stopping the float slidein out of line, just get it square on & she'll be good. Had--or still have somewhere--a 36mm Bing i did that too & worked for 30-40 years, still will work when i find it.
Got me thinking, on my AT1 which has a TY175 top end, so pretty much a ct3, i bought a cheapy chinese carb & used a rubber manifold off something--maybe rd350 & works good.
Last edit: 07 Mar 2021 15:32 by RT325.
21 Feb 2021 02:10 #4

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Replied by RT325 on topic CT3 Carburetor

Here's one that looks in with a chance. $55.23 nz dollars with free shipping. Not what i used & can't remember my password lol, but this one bolts on like your original. I doubt the mainjet is in that side screw in the bowl & likely just a drain screw.


www.aliexpress.com/item/4000429613010.ht...02_,searchweb201603_
21 Feb 2021 02:32 #5

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Replied by RT325 on topic CT3 Carburetor

Trying to find a pic of my carb with no luck--found a video & should be shot for revving it that hard haha. Clutch slips a bit untill hot then seems ok but must fix it. Never had the cover off since new. TY top end just seemed like a good idea at the time seeing as i had a cylinder but just an AG head & works great. Think i might have a 5mmm plate under the cylinder due to conrod length from piston port AT1. Did it years ago. Hope video plays.--I give up blimmin youtube drama--but i'm learning.
 
Last edit: 21 Feb 2021 03:34 by RT325.
21 Feb 2021 03:08 #6

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Replied by RT325 on topic CT3 Carburetor

Try that. Have very high gearing on it but pulls it well.

Video link
The following user(s) Liked this Post: Pete-RT1, Jack
Last edit: 21 Feb 2021 03:31 by RT325.
21 Feb 2021 03:28 #7

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  • re5rotary
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Replied by re5rotary on topic CT3 Carburetor

I had looked at the many chinese carbs but wondered what jetting they are likely to have. I presume they wont take the original Mikuni jets? I figure Im better off finding a better original or worst case fixing what I have. Mark T I will have a look for a number thanks all Terry
25 Feb 2021 00:23 #8

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Replied by MarkT on topic CT3 Carburetor

Often number is on upper edge of mounting flange.
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
25 Feb 2021 06:56 #9

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Replied by Mothersbaugh on topic CT3 Carburetor

Chinese carbs will take Mikuni jets. I bought a 1971 CT-1 in Phoenix that had been "gone through completely" by a local bike shop. They missed the starter jet and pilot jet in cleaning the carb, and so they replaced the carb with a Chinese unit. Fortunately, they gave the owner from whom I bought it the original carb back, and after I bought it, I came home and cleaned it and put it back on the bike, and it runs fine many miles later. But I have used that Chinese carb to check this engine or that engine, and I even sent it off to the Midwest to a guy here who had a CT he said would...not...run...no matter what. He put the Chinese carb on (Mikuni jets), and it ran fine. The Mikuni jets may cost you more than the Chinese carb, though!
25 Feb 2021 07:38 #10

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