Join Date: Jun 2009
Location: Chicago, Illinois
Shouldn't fuel be coming out of here?
Well, it's my first post, but I've been lurking for a while! Great place!
I picked up my 1990 Vulcan about 3 weeks ago, and it's in great shape! Was 100% stock when I got it, 19k original miles on it, ran very good and was very well maintained and clean.
The bike ran great, except for a hard to start when hot problem, which searching around I found much info on. I put in an AGM battery, and iridium plugs. This immediately solved my issue, and it started each and every time with no effort after this! Ran great! Previous owner just did wires not long before he sold it to me, and he had the carbs cleaned and everything about a year ago. Along with changing out the battery, I tore most of the bike down and checked ALL of the electrical connections, and changed the oil. Everything lookin good!
Well, I've been cruising on this, loving it for like I said, almost a month now. Bikes been running great! Not a problem with it once the battery and plugs were switched out, however now I have my first problem.
Today, I rode up to my girlfriends work, bike ran perfect the entire way up there. Nothing out of the ordinary. Upon pulling into the parking lot, I started to park, and the bike started sputtering and died on me and wouldn't idle. I started it back up, didn't want to idle, died again. Well, I managed to find out that I could get it started and then give it enough gas to keep it idling, and once I got it about 2k rpms it ran perfectly fine as usual. I decided I needed to get it home before I got stranded, so I ran home quickly with it. Along the way, no problems aside from keeping it idling. If I was sitting at a stop light, I would have to hold the gas to keep the revs up, and it would take a little work to get it going in 1st, but then again no problems.
I pulled it into my garage, checked everything. Fuel tank is FULL. Now, mind you I don't have my experience with bikes or carbs, but I do have a lot with car engines and fuel injection. My understanding is that these carbs are gravity fed correct? I noticed the main fuel line coming STRAIGHT down from the petcock had a crack near the top, but it didn't look under the nozzle, so I replaced that line no change. For kicks, I left this main middle fuel line disconnected, and turned the petcock down to ON. No fuel came out?! Shouldn't fuel be coming out of this pretty good? Like I said, the fuel tank is full all the way.
I didn't pull the other 2 lines on the left and right sides of the petcock, because I ran out of time before I had to goto work, but I'm assuming on our bikes gas should freely pour from here when the petcock is turned to the on position. I'm guessing there's a little screen in there as well. A couple days ago I put some SeaFoam in the gas tank, maybe it clogged this screen?
So...Could this be causing my problem? Maybe it's too clogged at idle, but under some throttle the vacuum is enough to suck past this? Or am I wrong in asuming gas should be pouring out of this petcock with no lines attached under ON?
Also, the previous owner told me these bikes have no reserve. Is this true?
Any insight on this problem would be appreciated! I love my baby and I want to get it runnin again ASAP!