Hello there.
A little update lately.
The day I tried the new EJK setting, I was swimming a bit too deep, with the buggy. 
But I did experience the difference for 30 minutes, and it became a lot faster response.   
So I can recommend these values ​​for EJK, but check your spark plugs for safety.
The intake rubber was not fixed properly after service, water came in that way, which luckily drove slowly with low speed.
So the gasoline is diluted with water and it stopped!
Had water up to the shift knob.
Empty the machine on water and oil, filled up with new oil and started ...
It works and sounds and goes as it should ... I breathed out ...
Five oil change and three filters later all water is gone.
Later I'll snorkel,
Until then, I have put an extra filter for the intake, what do you think about it, for dust, not water? 
I have also got home the new S clutch and Dr Pulley 24 g weights, so when I get time I'll test C1 and them. Returning after the test.
/ Ulas

[2015 Z Force 800 53/Trail EPS]

That top filter will not give you anywhere enough air. You will be choking it all the time off idle....and that means not only poor running but over fueling which will take out the rings way faster. Put a filter on the top with as much or more surface area as the one in the box or none at all. You can confirm by putting a vacuum gauge on the drain port of the air box and watching it as you run. I got a little vacuum even with a good filter...that why I changed the complete intake pipe to 2.5".

I took the foam filter off my old stock air filter, zip tied the one end to make it look like a cap or cone and pulled it over the nylon bag filter works great. Still good air flow and picks up a lot of dust.

Hi.
Thank you again for your support NMK and gfmoto.
If I understand you're both right, I'll remove the red filter, and replace it with a better one.
If I remove both, and replace it with the same type I use in the air can, (see the picture) and tighten it with a zip strap, can it work?
I'll mount snorkel 2.5 "pipes, but not yet.

[2015 Z Force 800 53/Trail EPS]

Hi.
Thank you again for your support NMK and gfmoto.
If I understand you're both right, I'll remove the red filter, and replace it with a better one.
If I remove both, and replace it with the same type I use in the air can, (see the picture) and tighten it with a zip strap, can it work?
I'll mount snorkel 2.5 "pipes, but not yet.

Sure, that would be fine. Long as it isn't smashed-down

@NMKawierider

I'm doing a complete rebuild of my motor as I've talked to you before about different odds and ends questions. When reclocking your position, you don't have to replace springs like do on rzr? You just adjust the spring to the setting for you want it? I want more low end not really worried about top end. Plan on getting bigger tires before it's all done with. Just hard do it with every internal replacement!! But not sure which position would be best. I do a lot of trail/woods riding all that's local here. And I'm not sure on the altitude I'd have to get back with you on that. Anyone help me?

I would go to B2, 23g or 24g DR pulley sliders. No you don't change the spring the set the spring tangs in the correct holes to get the position then you will have to rotate the helix while threading the bolt to get the helix over the shoe. What you are doing is adding spring tension.

So will it be noticeable low end change? And may be a dumb question I see dr pulley sliders for sale everywhere but how do you know there for cf moto? Or link can guide me to? And isn't there a video on how to adjust clocking on here?

I would go to B2, 23g or 24g DR pulley sliders. No you don't change the spring the set the spring tangs in the correct holes to get the position then you will have to rotate the helix while threading the bolt to get the helix over the shoe. What you are doing is adding spring tension.

[2015 Z Force 800 53/Trail EPS]

I would go to B2, 23g or 24g DR pulley sliders. No you don't change the spring the set the spring tangs in the correct holes to get the position then you will have to rotate the helix while threading the bolt to get the helix over the shoe. What you are doing is adding spring tension.

X2

[2015 Z Force 800 53/Trail EPS]

So will it be noticeable low end change? And may be a dumb question I see dr pulley sliders for sale everywhere but how do you know there for cf moto? Or link can guide me to? And isn't there a video on how to adjust clocking on here?

Yes, you will notice a drastic change...and if you don't, then you forgot to rotate the helix to the ramp when assembling. On the sliders, look for any CFMoto 800 application(if that's the motor you have). 30x18 is the size. Here is a set of 24 gram sliders that I and Redrider would recommend.

http://www.ebay.com/itm/DR-PULLEY-ROLLERS-30x18-24G-for-CAT-Arctic-Cat-1000i-CF-Moto-terralander-800-/401368727416?hash=item5d7370bf78:g:uAYAAOxyTMhR-4~L&vxp=mtr

if you type in "clutch clocking" in google I think the first you tube video that pops up will cover you