4 degree ignition advancer

[fazer390]

I fitted mine this weekend... It didn't make any differance to the starting, but it has made the engine and throttle response so much smoother.
The downside I found is a slight lack of X factor at the lower end... and it doesn't pop and rumble as much when slowing down off the throttle...
I'll live with it for a while (getting out when the weather dries up a bit). I might change it back; however it does make it feel a bit like a brand new bike at the moment...