I have also just got a -83 Kawasaki GPz 750. It has been standing in a garage for 12 !! years. I just got it started today. new batteri, oil and brakefluid. It runs uneven but what do you expect after 12 years! I need to adjust the carb. and change tires. I also think the piston to my rear brake needs new gaskets. The little a ran it it could really feel the POWER ! Best regards JT