Join Date: Mar 2005
Location: Channelview, TX
How 'bout this?:
1) The larger one to the left is the main jet. Use a 10mm wrench to hold the jet seat, while you unscrew (or screw in on reassembly) the jet with a flat blade screw driver that fits the slot. If the carbs are still in the bike, you can remove the jet seat with a 1/4" drive socket, then remove and replace the jet.
Stock main jet is usually a 132 on the 750; 135 on the '85 VN700, altho some later 750s came with 135s, also, depending on where they were sold.
2) The smaller slotted jet in the middle is the pilot. It can be removed from the carb with it still on the bike with a right angle screwdriver, or a screwdriver bit in a 1/4" wrench. Takes a bit of maneuvering to get it back in; the bit in the end of a piece of vacuum hose helps get it started and snugged, then the bit in the wrench to tighten--gently.
Stock pilot is 38, no matter what year or where it was sold.
3) The one on the right is the air jet. It's press fit, and ain't removable. If it's stopped up, the bike will run like crap. Do not use anything larger than a single straight bristle off a brass wire brush to clean it out, and the only safe way to do that is with the carbs off the bike.
'95 Vulcan 750 "Therapy II",
aka "Raggedy Ann"
'95 VN750 project
'03 VN800B "The Little Black"
'04 VN800E Drifter project
'93 VN1500A custom project
Photo album: http://www.flickr.com/photos/leekayd/sets