hi CharlieM,i would interesed in your schematic,have runed the inverter whit another cdi on suzuki 50cc scooter and runs fine,but the spark is not so big.....for me!With an 1uF capacitor on the cdi doesnt doo max. revs. only about 7000 rpm, and i need 12000rpm!some sugestions? I used the original inverter schematic with fast recovery diodes ,E-core transformer and only half wave rectified and i got out about 120 voltsfrom the inverter.