hi this may be a strange or simple question

i am looking at changing my jets on the above bike as i think i may have the common problem of ovaling emulsion tubes how do i know what size are in at the moment with out having to take them out to replace them

Many thanks In advance a bit of a novice on a bike

Do warn emultion tubes cause that stuttering, like it just wont rev randomly? Mine used to do that quite a bit before I stripped it down.

Can you confirm what year you have 1994 or 1995 as the data I have says the jets are different. If you can find out the ID mark on the carbs this would help. Should be stamped on the side of the carbs. Should be either 4HD00 or 4HD10 assuming its a UK bike.