Member Contributer CBVFRbikeboy Posted December 30, 2016 Member Contributer Share Posted December 30, 2016 I understand the jet needles are different from back to front, but I can't find a reference that identifies which is which? I've removed mine, and two are stamped OWC, and two OWP. Trouble is, I don't know for sure they haven't been crossed up in the past? Any clues? I also see the manual says the remove the starter jet (B in the pic), but it doesn't have a slotted head for a screwdriver. Is it a press-fit? Link to comment Share on other sites More sharing options...
atx Posted December 30, 2016 Share Posted December 30, 2016 That is the starter jet, per the manual you do not want to take those out. When i rebuilt/cleaned my 86 vfr 700 carbs i left em in. You should be able to clean em out when you pull the choke plungers though. You can run a wire through the top of the starter jet and blast it right out of the choke plunger hole. Scroll down this thread a bit for great guides on cleaning these puppies. Makes the factory shop manual instructions look like a hayne's manual by comparison. This is another pretty good guide: http://v4musclebike.com/articles/magnandy/Andy's Carb Cleaning Guide.pdf Link to comment Share on other sites More sharing options...
TheDutchy Posted December 31, 2016 Share Posted December 31, 2016 On the picture, B is the choke jet and can't be removed... A is the starter and slow jet. (usually size #38) On the needles, OWC goes to carb feeding the back cilinders (1 & 3). OWP for the front.. There is also a difference between the emulsion tubes (main jet holders)... The fronts have a different hole pattern compared to the back.. (see attached picture) Good luck.. Link to comment Share on other sites More sharing options...
squirrelman Posted January 12, 2017 Share Posted January 12, 2017 AS mentioned, the long brass choke circuit pick up tube is NOT REMOVABLE but can be rodded out using a .012" steel wire to a depth of about 30mm. Slip a tight-fitting tube over the thing and see if you can blow or suck air through it to confirm it's clear. Link to comment Share on other sites More sharing options...
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