[reepsracing]

guys was wondering if anyone come across this-just picked up new 2018 800 force sat.when taking off it jerks and bogs then goes- i know this is not normal-anyone run know whats going on-also goes into park hard sometimes-thank-you -dennis

[NMKawierider]

New there is always some jerking through the wet clutch system..but that gets better over time...the bogging isn't normal though..maybe an issue that needs to go in for and while there most needed the shifters adjusted so let them know about that. Overall the shifting..when it's all adjusted correctly, does get easier as parts in the transmission break in.

[reepsracing]

thank-you that makes me feel better-ill give it some time-dennis

[NMKawierider]

thank-you that makes me feel better-ill give it some time-dennis

And remember not to ever put it into Park while on any kind of angle. That puts enough pressure on the paw that you may need to rock it to get it out of park....and on some hill sides that won't be an easy thing. Most of us just use neutral with the hand brake.

[MarAgt]

Mine does it too.  I don't know that it gets better or you just get better at driving w/it.  But there was a thread not long ago on this very topic. 

http://cfmoto-forum.com/uforce-800/uforce-800-low-speed-drive-ability-hesitation-bog-lean-condition-fix/

[NMKawierider]

Yeah..bad ECMs in the Us.

[MarAgt]

Yeah..bad ECMs in the Us.

I do like my UForce 800 and all that I got for the price.  Even the jerking at slow speed is more a nuissance than a problem.  I'll probably breakdown before too long though and by the new ZForce 800 ECM; which by the author of the thread I posted takes care of that.

[reepsracing]

thank-you guys what a great forum-i didn't know none of this stuff-yesterday i thought what did i do buying this-now i can sleep tonight-thanks -dennis

[bob the slob]

I have a 2017 it's jerky when it's cold but when it warms up it smooths out  a good bit

[NMKawierider]

I have a 2017 it's jerky when it's cold but when it warms up it smooths out  a good bit

Sounds pretty normal for one with a wet clutch. They all do it to some degree. If it's real bad, there were some bad springs on some wet clutches... otherwise, use a good Jaso rated synthetic oil.