Hi all my name is Shane and I am a proud owner of 1982 katana 1000sz fitted with a gs1000 engine. My question is does anyone out there no how to get to it to go faster as it maxes out at around 130 klm per hour, which is consistent with the Speedo of my bike. This bike handles like a dream but it makes it hard to take away on a ride with my mates as it is so underpowered. Any advice/help would be greatly appreciated.