Ive changed plugs wires and sealed gas tank new air filter new regulator bike fires up immediately idles high on choke on can lower choke a few minutes and idels perfect can give throttle good response reves good but go for a ride and it is like bogging down a little when giving throttle and catches sperodicay and gets full power then completely dies after 10 mins will crank over but won´t start / then starts like 30 mins later idels perfect reves good 10 mins later engine stalls