My Kawasaki ZX-6R J2 keeps coughing when letting the clutch out and pulling away. It was parked up unused for a few days and when I came to use it again it wouldn’t work. The fuel pump had stopped pumping, and the relay would click when the clutch was pulled in. I managed to get the pump working, and the bike running again.
Give it revs and drop the clutch and it doesn’t cough, but once you get going, it’ll start. I’ve put new connectors on the pump, taped up the handlebar where the kill switch bolts and cleaned and checked the sidestand switch. What next?
David Woodford, PS Facebook Group A
Gary Hurd says: I think you’re looking in the wrong place . I’m suspecting a fuel issue. Drain the fuel system completely, clean the carbs. I’m suspecting water in the system or blocked pilot jets. Check the compression too. If there’s a tight valve or valves, they would cause some of these problems too.
Drain and clean entire fuel system is the fix