Hi there i have this z force 550 efi ex utv and havent used it for a couple of months and now its missfiering and dont have any higher speed for some unknown reason.

i have changed the sparkplugs and done a new service on it, and replaced the fuel injector, but havent gotten any better.

any ideas? and allso i would love to have a service manual if anyone can pm me one or link

[2015 Z Force 800 53/Trail EPS]

Hi there i have this z force 550 efi ex utv and havent used it for a couple of months and now its missfiering and dont have any higher speed for some unknown reason.

i have changed the sparkplugs and done a new service on it, and replaced the fuel injector, but havent gotten any better.

any ideas? and allso i would love to have a service manual if anyone can pm me one or link

Sorry but all I have is a very bad copy of a ZForce 500...which will be the same...just hard to read in places. I'll send you a PM with the link. In the meantime test the fuel pressure and crank speed sensor...aka CPS.

Try this site ...

https://www.motorcyclemanuals.info/motocycles-atvs/cfmoto/