2003 VTX Cut out - Can't Fathom a Reason
A couple weeks ago, I was riding to work and the bike shut off. Was dripping gas out of the carb. Would run, but only 1/4 throttle or above.
I tore it apart, and replaced the needle/seat with an All Balls racing one. New gasket, etc. I decided, given mine is a 2003, this would be a good opportunity to ditch the fuel pump. So I bought a new 3/" fuel line, took one of the thin heat shields off the other lines and ran it from the petcock, across the top of the motor to the carb inlet. Used about 18" of fuel line. I'm a little worried about the fuel flow when I get down to reserve level, but we'll see.
Well I took it for a ride, it was fine for about 10 minutes, then it started cutting out and actually died. I was doing about 70mph, when I pulled the clutch in, it died, I let it out, and obviusly it would bump start again. I pulled over, and all I could find was the vent hose from the right side of the tank was unplugged. I plugged it back in and decided I'd try and limp it home (about 10 miles). It ran fine. So I then went for broke, got back on the highway for 10/15 miles and kept the rpms up (trying to burn fuel in case the bowl was going dry). Never hiccuped.
There is about a mile long steep grade and I went Wide Open in 5th from before the hill through the top, she runs out of steam at about 105/110, but she didn't buck, sputter, or cut out in the least. It was a solid mile WOT, and if there was a restriction
Could the unplugged vent from the back right of the tank caused some sort of positive pressure or something in the tank causing fuel to not flow with gravity? I can't explain why it did what it did, looking for some insight.