There is a rubber vacuum hose off the right side of bike. Mine broke off which is easy enough to fix but it looks like the hose ran back under the seat but it was already broken so I have no idea where the other end connects. Thanks in advance...
The hose is for the vacuum sensor, goes from the #2 carb(I think, one of 'em, anyways...) to the sensor hidden behind the fairing, up front...
Okay. I will look for it. This is one is on either the 1 or 4 carb, depending on which way you number but it is the brake side. But that sounds like it. This is an 89 for what it is worth.
Per industry standards, cylinders are numbered from L to R, from driving position...