1983 Honda Xr350r Dual Carb

1983 honda Xr350r dual carb, it runs and is easy to start. The only problem is right now it only runs for like 5 to 10 minutes and then dies while riding, but it will sit and idle forever so I did some research, and im going to replace some parts sparkplug ignition coil etc and im going to try and tune the carbs and ride it tomorrow and see how it acts Update: turns out the problem was a dirty sparkplug and the gas cap vent was clogged bike runs good now but could use a carburetor tuning i will continue working on it and trying to get it running perfectly i just have to figure out how to tune these carbs I do have the title for it, and it's a great bike. I also have the rear fender and brake light. i just took them off because the bolts rattled out the last time I rode it, so they were flopping around Will only trade for a running 350cc or higher dirtbike, not a dual carb bike. Preferably a suzuki dr350, but show me what you got