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Discussion Starter #1
Hi all.
Stripped and cleaned my carb and thought I’d check the jet sizes etc.
On the slow jet was the number 55. Which I understand is quite large!
However I cannot find any size on the main jet only the letters CBT ????
Is that just a model fitment number or do these letters correlate to a size?
There is no numbering on the main jet at all !
See the photo. 15D9B2F0-E5AE-476B-BA9E-CAF6DEF47739.jpeg
 

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CBT sounds like a reference to the Needle that fits inside the emulsion tube, Did you separate the jet from the emulsion tube to clean it?
The needle code is C is the Jet taper, B is the length and T is the diameter of the needle, possibly its a matched set with the needle, do you have the needle code as well?
 

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Discussion Starter #4
CBT sounds like a reference to the Needle that fits inside the emulsion tube, Did you separate the jet from the emulsion tube to clean it?
The needle code is C is the Jet taper, B is the length and T is the diameter of the needle, possibly its a matched set with the needle, do you have the needle code as well?
Will have another look later today, thanks.
 
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