LMAO I guess this already *was* in the carbs area! Oh, well, sorry 'bout that!Hi Cindy,
I'm a new member of VN750, having bought a neglected '85 VN700 a few weeks ago. I bought the bike as a near-basket case that would barely run. I traced the problem down to the carbs (spark & compression was fine), and discovered that the fuel lines were set-up incorrectly - the lines from the petcocks ran directly to the vacuum lines! (primitive direct injection? LOL!). Anyway, using the excellent labelled pictures you've provided the forum, I was able to reorganize the fuel & carb vent lines to their correct locations/destinations... the bike now starts & runs fairly well... I just don't know what to do with the vacuum fittings on each carb.... any suggestions on how to rout them and to where?)... any help from you or any other forum members would be greatly appreciated!
Best Regards to All,
Ok, for the vacuum lines: On each carb there is a brass nipple that will accept the vacuum line. On the front carb, it should go from that nipple to the lower part of the petcock. Now, if the petcock lines are viewed as a 'T', the bottom of that is where you hook up the line from the front carb. Assuming the 85 model was a vacuum-operated petcock, that should do it. If for some reason your petcock is a gravity feed (or someone converted it), make sure the line is snugly on the front carb and then block it off with a golf tee or something.
The rear carb vacuum line should run from the nipple back to the emissions cannister (look for the small lead on the cannister - there's only one that's the right size to accept the vacuum line).
See if that helps - if not, there are other options we can collectively consider.
Oh, and again, welcome!! :beerchug: