What a difference!!!!  So I took the time to check the cooling system.  I wanted to do it properly so I took the time to take both side plastics, the gas tank cover, the gas tank itself, a sheet of firewall and another plastic protector under the gas tank.  That gave me access to the bleeding screw.  The accelerator cable was on the way so I removed it to have even easier access.  Took the radiator cap off to discover it was not full.  Took the bleeding screw completely out as it turns out it is just a self tapping screw that goes in a rubber housing so if I didn't remove the screw, no liquid would come out from it whatsoever.  Added quite a bit or coolant, plus I let quite a bit of it bleed out of the screw.  Put the screw back in place and topped the radiator even more.  Checked the reservoir and it was at a good level which leaves me wondering why the radiator was low even though there was plenty of coolant in the auxilary reservoir.   It was a pain in the ass to put one of the bolts that secured the gas tank back in place as the access hole in the front plastic does not lined up with the bold...next time im removing the entire front plastic which would be much quicker.    All together it was quite a bit of work, maybe a couple of hours, but I enjoyed it and love the results.  After testing, my machine did not even got up to showing any temperature after pulling the leaf sweeper for 15 mins.  It took nearly half a hour to get the machine up normal temperature so a night and day kinda difference.

hahaha sorry I'm ESL (english as a second language) hahaha.  Yes it is a lawn sweeper very similar to this:
https://www.youtube.com/watch?v=RFiJMNLJFc0

I don't do it that often and when I do use it for pulling the sweeper it's not for a long time maybe 30 mins or less. 

I still want to check for air in the system since I did not do it properly when I change coolant.  In my Cforce 450L that bleeding screw is under the gas tank which will have to the removed to have easy access to it.  It is not a hard job but it is a bit more time consuming and the weather is not cooperating now.   Once it stops raining I will have a better look as it might be possible to reach the bleeding screw without taking the gas tank out, but it would be not that comfortable.  Once I get it done ill report back     

Thanks NMKawierider; I did a service and flush the old coolant.  Washed everything a couple of times are replaced it with new coolant.  I never saw the bleeding screw when filling it up with the new coolant so I guess I have a couple of air bubbles in there.  My machine works ok if I ride it normally, but when pulling a law sweeper at low speeds (usually around 6mph) after around 10-15 mins of this labor the engine starts to get hot.  Guess is back to square 1 for me and redo the coolant fill-up properly to see if this issue disappears.

If I follow the trick of raising the front of the machine, does that bleed the system without having to mess with the bleeder screw which is tucked under covers  and hard to access?

That looks fantastic, pretty cool views.  Here in Ecuador we don't get snow so that's in my bucket list.....but maybe in a snowmobile hahaha. 
I see you have all the metallic skid plates for your machine.  Are they super heavy compared to the plastic ones that come stock?  I have manage to break pretty much all my plastic ones and was considering fabricating some metallic ones until I discover the material we have here are pretty heavy and not suitable for that application.

Oh wow seems like you have a ton of experience riding atv's.  That and the fact that you can communicate your plan and whereabouts seems pretty safe.  I never had to do major work on the field, come to think of it, the worst that ever happened to me was the machine overheating and there was nothing to fix it so all I did was drive it a short distance and spot until it cooled a bit.... there where a lot of stops before getting home hahaha.    Anyway, when can you go back to the spots of the pictures?  I bet it looks completely different covered in snow. 

Awesome views!  What kinda of precautions do you take when ridding solo?  Do you plan a route, tell someone your departure and expected arrival time?  What equipment do you bring with you?  Do you have cellphone services during the ride?

Luckily I was wearing waders, just some cheap ones with the boots heat welded to them so it was no problem to wash the after.  I always have to use the pressure washer but most of the time is with the 40 degree tip and it still takes me a while.   Anyway is part of the fun and a good time to check the machine for any damage.  So far nothing serious has happened to it and im still pretty happy with the quad.

hey whyhike
My 2020 cforce 450L came with a winch from the factory.  I added a rear mounted winch to my unit.  Only used some metal plates that hold the tubes on the frame with some U bolts.  Pretty simple installation and it has worked wonderfully.  I did looked for a winch that was suitable for the space with the drum built more in the middle of the unit but it has the solenoid box in a remote location.  The rear winch came with the typical rocker switch plus a wireless remote control option that I liked so much I later upgraded the front winch to have one as well.  Here are some pics:

Nice Im jealous.  Gas power or electic?

NMKawierider me too but it still takes a while with my 1600psi washer.

After completing some work on my Cforce 450L I took a ride and found a man made pond that was almost drained and yep you guessed it, I could not resist and ended up getting stuck 3 times.  Good test of the front and rear winches.  How do you guys wash your machines after something like this?  Anyway enjoy the pics.

Thanks yamahadm250 I'll keep that in mind if I ever had problems with my bearing.

Hey yamahadm250 so you dont have engine braking at all?  What did you replace the one way bearing with? just a normal bearing?

Hey Oscar011 glad to be of assistance and hope you are on the right track to fix your machine.  Let us know how it goes or if we can do anything else to help.