Carb Float Adjustment Clarification

e3steve · Post by **e3steve** » Wed Jun 08, 2011 3:58 pm

Jets' threads are the finer, JIS pitch. All the threads are correct and mate perfectly with no binding.

My carbs' mains are 145. I couldn't make out the scribe on the idle jets.

CL77NOW · Post by **CL77NOW** » Wed Jun 08, 2011 7:40 pm

the needles,
from Keyster kits. are.
CL77 - D13
CB77- D9
fyi.

e3steve · Post by **e3steve** » Thu Jun 09, 2011 1:55 am

Thanks Jerry. I've not looked at the needles (back to the garage today, then!).

When I swapped the carbs out (there was nothing wrong with the originals that came with the bike; the bike ran great but I bought these 'CL' beauties for my originally-intended resto -- now more of a refresh) I retained the 'CB' needles.

I have some Keyster kits but, considering the mileeos my CB covers, they'll probably never get used.

brewsky · Post by **brewsky** » Thu Jun 09, 2011 4:40 am

CL77NOW wrote:the needles,
from Keyster kits. are.
CL77 - D13
CB77- D9
fyi.

CA77 Keysters are D3
Wonder what the differences are? Bigger number means thinner profile?
CA needle dimensions in this thread:
http://www.honda305.com/forums/viewtopi ... c&start=30

CL77NOW · Post by **CL77NOW** » Thu Jun 09, 2011 8:07 am

I will measure that today.
just got the kit.

e3steve · Post by **e3steve** » Thu Jun 09, 2011 10:42 am

My needles are Keihin 2423. Pilot jets look like 39(?).

teazer · Post by **teazer** » Thu Jun 09, 2011 4:01 pm

Steve, I suspect that number is 24231 which is the usual CB77 needle and 24304 appears to be the CL needle according to my stash and notes.

Late type jets are 5mm by 0.8mm and are the same height as older 5mm by 1.0mm jets. All jets should screw in easily and be flush fitted. If they go half way they are the wrong thread for your carb.

Jets with that ring around them are the modern type/size and are available for CB750s etc

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Carb Float Adjustment Clarification