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Carburetor Secondary Main Jet Query

Old Shep

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Hi Everybody
I have just purchased a set of Keihin VB52E carburetors I was told they were from a CB750F the year unknown.
Fitted are primary main jets 68 & secondary main jets 75.
I want to fit them to a 1980 CB750K which according to the manual should have VB42A or C with primary 68 & secondary 102.
My query is it deemed ok if I fit secondary jets 102 to these carburetors?
What effect would it have leaving the 75 in?
Thanks in advance for any help.
 
Get rid of the 75, too lean, go to 100-102ish. Somebody has not a clue. NO DOHC VB carb runs a secondary jet that small. Just to be clear, the smaller jet goes in front. That 75 setup is engine melting if bike runs right.
 
Thanks for the info: I have a set of 102 jets and will fit them. Just for information and knowledge what is the differences between VB42A/C and VB52E carburetors?
 
my jap domestic cb750FZ came with 75's and i fitted 102's big mistake it choked itself at 5000 rpm and wouldn't rev any more, i found out the 75's were correct for this particular bike, so be weary .
 
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