My 500 interceptor will run then won't?! Help!

My 86 500 Interceptor has only 5000 miles. Has new fuel in it. Sat for over a year when I bought it. Tank inside is very clean looking. When it does run it runs ok. Will idle when warmed up. Take it for a mile of two and starts to run out of gas. (Full tank) checked gas cap and free flowing air. Shouldn't be vapor lock? Could the petcock have issues? If I squirt start fluid in air box it will start and eventually start running again? Soon as I go down the road for a few miles it stalls out all over? Any help would be awesome! Thanks!

 

When it does this, if you stop and turn it off for a minute or two, is it good to go after that for the same duration? I had the exact same issue as described and my problem was that when I put the gas tank back on, I had pinched the fuel line from the tank to the carb. Mine were not OEM, so they were a little longer and I had to shorten them. To me, it sounds like a fueling issue.

 

Yes for sure fueling issue. I will check it out.

 

Well took off the petcock and tore into it. I found the diaphragm for the vacuum was crinkled. Fixed and runs awesome!

 

Cool. Nice to find the easy fixes now and again.

 

That's for sure! Hope to get some riding in today.

 

That's great news. Easy fixes are always the best. Let us know how the ride goes.