Topic: Truth about my clogged tank/petcock caused stop. Friend helped taking bike home

[PeWe]

Today I found the real root cause of my stop in spring 2015.  I had just mounted a tank I had derusted with vinegar, then a quick rinse with water- alcohol that removed the water.

Bike stopped after about 10 miles. I was sure it was clogged petcock. A friend helped me to get my bike home on a wagon after his car.  I changed tank to my new tank complteley fresh and clean.

I drained the tank from fuel today. It stopped fllow after a short while. Removed petcock bowl and mesh filter. Still same problem.
I opened the fuel cap and the fuel started to flow.

Fuel cap was clogged, no air supply into tank, not the petcock!! If I had understood that I could have driven the bike home with fuel cap open.

I hope this will help others. If you think your fuel supply is clogged, open fuel cap, it might help.

[turboed13b]

My buddy had the same problem but his tank had the wrong cap on it without a vent but it looked exactly like the stock one. we even drilled a hole in it to try and fix it to which did not work. Bought a used cap with vent and all the problems went away.

He has a clear fuel filter inline to the carbs so troubleshooting was actually pretty easy to do on the side of the road.

[PeWe]

I will check the fuel cap air vent. If bad, new fuel cap.