Hello,

I have noticed that my machine is really touchy when accelerating while in reverse. It will literally chirp the tires when I'm on the drive way. I really have to ease into the accelerator to keep this from happening.

My cforce 500 has much better manners and is smooth in forward or reverse acceleration.

Has anyone else noticed this with their 800? Any suggestions for improvement?

Thanks

Mine is the same way, I have no suggestions for improvement.  I've just learned to be easy on the throttle.  It's the same way in low. 

[2015 Z Force 800 53/Trail EPS]

There are several factors that effect this. Inherently the standard CVT system..aka "belt-slammer" system on easy engagement slipped a little wearing the starting contact areas of the primary and causing accelerated wear on the belt. Most old-timers knew not to slip it..rather get on it and get it locked-in right a way. But thousands of new people didn't.. and were having issues. Some like Kawasaki re-ramped theirs and changed flyweights to have a "tip-in" point where as at some point on the throttle it closed quickly and was engaged. It eliminated the easy engagement as well as the slipping. A little scary for anyone not used to it but manageable because Kawasaki's idled around 900-1100 and engagement was before 1600. CFM may well have also done this but they..have their idle and engagement RPMs so much higher then anyone else, it's almost like dumping the clutch on your street rod...well...that's an exaggeration but you get the point. Many did not like or want their engagement RPMs at this level and have opted to either increase the weight of the flyweights or go with a lighter spring in their secondary. This does help but with the already high idle RPM its important not to go too far as you need at least 300 RPM difference between idle or disengagement and engagement. Most of the people doing this are Z1000 and 950 owners but some are with the 800 and 500s as well. You can also clean, polish and pit a little graphite on the flyweights and tracks which will help for a while. But idling in the high teens and clutch engagement in the mid 2Ks is always going to be a problem...IMO. All this so CFM can claim/squeeze a few more HPs out of their engines.