When I start the bike it runs and sounds well but the throttle does not spring/return back . So I took the tank off to get a proper look at the carbs and the first thing I notice is it appears to have A4 float bowls, [according to the parts book from Z Power.] Is this a " bodge up" do you think or are they interchangable? Could Kawasaki have done this at the factory?
I think the bike is quite a late B model [Z1F 070791].
I suspect this is just the start of my carb problems

Gary