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Carb jet sizes

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neat street:
Hi All
I am looking for new main jets for my CB750F1 (1976) The standard is 105, and looking to go down to 100. E-bay and the like do have loads of jets for the Keihin carbs, but not specific to each carb type, so do not know which to order? any help would be gratefully received.
Thanks
John

mick:
Hi John why do you want to go smaller?  ;) what issues are you having if any ? cheers Mick.

neat street:
Hi Mick
Still running a little rich, so going down a size should solve the problem?? The only other thing I thought of was the oil breather tube putting too much in the air filter box (If this is the case, not sure what to look at next)?
Many thanks for your reply
John

hairygit:
If it's running rich on 105's you really should be looking elsewhere for the problem, air filter, float levels etc :o

mick:
Hi John what symptoms are making you think its running rich? do you know what you carb needle clip is set on?, mine was doing the same mine was stumbling at low revs /throttle, I dropped my needle by one setting to weaken it up and it seems to have done the trick  ;) cheers Mick.

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