Hello all - every year the basic maintenace - top end, clean up carburator, clean up cylinder and decarbonize exhaust valves, change reeds, spark plug, muffler packing,etc - but the bike is just not screaming, sounds clogged - valves go up and down when I accelerate, but it´s just not smooth - I guess its electrical, the CDI, which sould spark up the control levels that move the valves.