Help from the pros

[Crucialval]

I have a big problem with my bike. It starts ok, warms up, runs good and I ride it down the hill and back. It ran great half way up the hill then started dieing out. I had to push it up hiil to the house. Once I got home I try starting it, it was hard to start and when it did it run like crap. It had no power, it almost seemed like the timing of a car being off, I'm wondering if possibly my valves are out of wack. anyone got any input? 

[ben2go]

did ya try running the petcock in pri?dirty carbs or filter.That's a steep hill going to your house the float level maybe off.

[Crucialval]

I haven't checked the float level but I just cleaned the carbs when I rejetted. I run ok for a few days after rejetting but it was running to hot . I put one more washer under the needle it has no more flat spots but losses all power after about five minutes of riding. I'll check the foalts and see what that does.

[Mk1inCali]

Make sure all the vacuum ports on the carbs/vacuum lines aren't being pinched off, as well as the fuel line(s) from the tank.

[Crucialval]

Ok I think the valves are bad. I put a piece of paper over the exhuast and it sucks it in and blows it out. would this be a sign that the intake valves are not opening, or the exuast isn't closing completely.

Correct me if I'm wrong but I think this is a problem.