kawaski 900 stx

[jwr44]

loses power after 3500 rpm but not all time. seems to be fuel but does not occur every time. changed to new gasx=, replaced filter. is there another filter and where would it be located any help appreciated. could this be cooling or electric issue thank you in advance for any input

 

[Jeff Walkowiak]

Re: kawaski 900 stx

have you looked to see if the chokes are sticking partially closed, also you could have a worn out fuel pump or a loose pulse tube to the pump,or a plugged up fuel selector switch, water in the fuel tank, loose fuel hose letting air in the suction side.