Hey guys I finally got around to getting my vulcan running that I bought in March, but have an issue. The bike starts and idles good, but taking it for a ride I found it was low on power. Now I'm coming from a 07 gsrx600 so I'm used to something quick, but thats not it, I'd be surprised if I could get the bike up to 70mph right now. The other day I realized after running the bike for a couple minutes the rear cylinder's exhaust was barely a little warm so i grabbed the front exhaust and damn it was hot. I checked spark and have it at both plugs. Pulling the plugs showed me that I was getting fuel, they were cleanish but wet with fuel compared to the front plugs. I swapped both the rear plugs with the fronts, started it and still no change. I thought maybe I had a weak coil so I swapped it with the front... still no change. Then I got to thinking the worst and maybe compression, tested it and is right in check with the front cylinder. I am running out of ideas.
Another symptom I have that may or not be related is a "knocking" sound coming from the rear head. I tried the Gambo trick but it didnt change the sound or help the rear cylinder.
The bike has 16,000 miles on it and its an 88 if this makes a difference, also when I put the new carbs on I also de-eared and rejetted. When I removed the airbox and installed the coasters, one bolt broke off in the head on the rear... right now I just have one bolt holding on the rear coaster and it is not sealing completely, could this cause a problem? My understanding is that it pushes air out of the head and into the exhaust through the valve which I removed, so I am thinking that it is not that urgent right now to drill and tap.
Sorry for the long post I am just running out of ideas, the only other thing I can think of is a rocker maybe popped off the intake but it doesn't look like the valve cover wants to come off with the motor in the frame
Anyway any help is appreciated thanks