PLEASE HELP! MY 1994 ZZR600 E1 SEEMS TO IDLE OK BUT A LITTLE ERATIC. HOWEVER, THE MAIN PROBLEM IS THAT I CANNOT GET THE BIKE TO GO MORE THAN ABOUT 35MPH. IT PULL SATISFACTORILY IN FIRST AND SECOND GEAR AND THEN AS YOU APROACH 30 ISH IS STARTS KANGAROOING, LOOSES POWER AND EVEN CUTS OUT ALTOGETHER IF YOU GIVE IT MORE THAN VERY LIGHT THROTTLE. I AM FULL TIME BIKER AND DON'T HAVE BACK UP TRANSPORT SO ANY THEORIES WOULD BE GRATELY APPRECIATED.
Hi and welcome to FixYa,
Initially, remove the sparkplugs, note and postback the colors of the tip.
Almost always, idling problem is a carb issue (air/fuel mix & amount), On the otherhand, refusing to accelerate past a certain speed (or more particularly, a certain RPM while under load) indicates an air leak. Test drive the bike again and note where it starts to fail to accelerate, consistently on 35MPH or a particular RPM.
Please postback results of above checks.
Good luck and thank you for asking FixYa.
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