Hello all, I have a 2021 Cfmoto force 800 trail. And the problem I am dealing with one cylinder not firing. I have checked cam timing, compression, spark, and made sure injectors are squirting. It is only running on cylinder, cylinder 2(cylinder that is towards the front of machine). Cylinder one(cylinder towards the back of machine) has spark and strong compression. So at this point I am pretty stumped. If you have any incite on this I would really appreciate it. 

yeah, definitely a bummer.

Do you think I should flush oil cooler?

I went under both valve covers and everything seamed to be in good condition, even fired it up for a second just to make sure and it looked good.

But I did pull the oil filter and there is a lot of copper colored flake.

Thanks again for the help!

Okay I will dig more into it!

I just pulled the wet clutch out(so there is not drive train in) and the noise is still there.

so its gotta be a rod knock or spun bearing?

Not sure if there's a way to check the actual pressure, but after I start it the light flashes for 2-3 seconds then shuts off.

I appreciate all the help!

I do not right now but I can get some when I take it back apart.

Do you think that it could be the clutch making the noise or does it sound like the motor?

I am going to try and attach a video so you can hear the sound. The wet clutch appears to be working correctly but is still making a racket.

Note: the one way bearing is not installed.

https://youtube.com/shorts/_YeW4FEudtY?si=2sbKGGPCiR-M-5gs

Thank you

Thank you
I got down to the wet clutch, and it is the earlier one so does have the wet clutch. Everything looks ok. While I was in there, I went ahead and replaced one-way and the primary clutch shaft bearing. and the there is still the noise, not as bad but still there. and doesn't want to disengage.

the Wet clutch spring appear to all be on there, but haven't taken off the machine. Just stumped at this point.

Note:The one-way was installed backwards first(only ran on jack stands, never drove), but now installed correctly.

Hello everyone.

I was recently riding my 2022 zforce 800 trail, when riding I started hearing a heck of a knocking sound and when coming to a stop it stalled out.

When fired back up in park it ran but made a lot of noise from clutch side. When put in gear it would get louder or stall.

So Im thinking the wet clutch is not disengaging or something is wrong with the one way bearing. Looking for a little more professional help! Thanks for reading!