1995 Yamaha YZF 750 R "exup" Questions

yzf 750 wont rev past 4000 rpm my 94 yzf 750 wont rev past 4000rpm.. the exup valve seems to be working... please help Sounds like you need some plugs and the carbs cleaned and synchronized.

YZF 750 rev counter flicking from 0-9000 and back again? its an error code your exupe valve is jammed rich uk Check your earth connections or/and by using a piece of earth bypass wire. You have a bad ...

...pump,pre ignition test noise is an indication it is connected as it self tests for fuel pump and exup before start. If pump is disconnected she will run like a pig then cut out. Another fault

yamaha fzr 1000 genesis 87' is reduced effect or not? 87-89 was a fzr1000 genesis 89-90 was a early exup and nothing fits either bike exact the carb air intake on the 87-89 is 44mm the carb air intake

...R1's does anybody out there knows anything about R1's I'm having problems with code error 17, and Exup motor not working.... Is there a way maybe connecting the wires to the lil motor that control ...

...DIAGNOSIS ON MY R6 2006 AS COME UP WITH ERROR CODE 18 COULD YOU TELL ME WHAT THIS CHEERS STU Your EXUP is the butterfly / valve that is in-line between your center muffler/Cat and the stock exhaust ...

exup valve location,is it on the engine or exhaust headers??? i know the servos under the seat, I'm not familiar with that bike, but you can download a free service manual at ...

YZF-R1 features a self-diagnosing system for the following circuits: 1. throttle position sensor 2. EXUP 3. fuel level indicator light if any of these circuits are defective their respective condition

there,s a rattle at times coming from the exup valve on the bike,is this common??the rattle stops when you raise the rev,s on the bike. Your EXUP valve must be loosen. Take out the header's part ...