I have honda nc29 1992 and i have a problame with fuel pressure when i leave the bike a couple of week it wont start unless i run fuel straight down to the fuel rail to prime the system up then it will be ok anyone else had this problame or know of soltuion to stop this.

Regards
steve

Check your tank breather an filters?

The fuel going following route: tank--> tank tap --> fuel filter --> fuel pump --> carburator --> engine. Check all underlying above. The pump only run when you crank engine.