[cr8ts]

Hi,

I own a 2021 CFMOTO Cforce 800 XC. I have 700 KMS on my machine.
For 650 KMS my machine always ran flawless and my temp bars would sit at 4 bars and sometimes 5.

One day I went mudding and after that day my machine started to overheat. Before realizing my fan was not kicking on, I cleaned out the rad and made sure my coolant level was all good. When I noticed the fan was not working I checked the fuse and have replaced it since.

Went to go riding today, about 23 degrees out so not really hot at all. After riding for about 10 kms, my bars started to climb all the way to 7 (level before the beep).
I was getting paranoid from the experience before so I kept shutting off the machine to let it cool down before I would hear the beep.

I then decided to ride the machine till I would hear the over heating noise. Instead it decided to drop a bar down. Then it would climb again.

As I finished my ride my heat temp was sitting at roughly bar 6 and 7, never got down to 4 or 5 bars

Can anyone share their knowledge or experience with what I am going through.

It is not fun looking at my gage and just assuming that I will hear this overheating noise at any minute.

Thank you,

Mark

[NMKawierider]

Well, the first thing I can tell you is any CFM machine that runs over 3 bars consistently has a problem. 3 is the norm with the occasional 4 in extreme conditions not 4 and 5 bars. Yours has had a problem from the start and now..it needs taken in. Do know though that 5 bars has been known to take the top ends out on CFMs...let alone 7 for all day. Take it in and cross your fingers it's only a temp sensor.

[cr8ts]

Thank you NMK for your response.

Well I am not happy to hear that.

Do you know what the temperature for each bar is? I read through the manual and it does not provide any of that information.

[NMKawierider]

Thank you NMK for your response.

Well I am not happy to hear that.

Do you know what the temperature for each bar is? I read through the manual and it does not provide any of that information.

No, but...the temp sending unit provides the data for both the ECU to turn on and off the fan and the gauge in the dash so if it's bad...and hundreds were...that might be the entire issue all together. It would need testing as per the manual. Unfortunately I Don't have a manual for that year.   

[cr8ts]

I have been really busy so I havent had a chance to ride much or address this problem.

I ended up taking my bike back to the shop. They replaced the thermo switch.

My first ride after it was a very open trail and keeping a speed of 50km/h. No problem, bike worked perfect for 100km.

Went for a ride on a small trail only going about 15km/h and my bike started to overheat again.

The mechanic at the dealer suggested that I raise my fan amp (in black box) to 20 amp. Is that okay to do? My fan is constantly working the whole time. When I was using the 15amp i kept blowing the fuse, but that was before I changed my thermoswitch

I was reading the other gentlemans thread and he said he just moved the relays around. I am going to try that next.

If that does not work do you think my next step is checking out the thermostat?

Any help is appreciated.

Mark

[NMKawierider]

I have been really busy so I havent had a chance to ride much or address this problem.

I ended up taking my bike back to the shop. They replaced the thermo switch.

My first ride after it was a very open trail and keeping a speed of 50km/h. No problem, bike worked perfect for 100km.

Went for a ride on a small trail only going about 15km/h and my bike started to overheat again.

The mechanic at the dealer suggested that I raise my fan amp (in black box) to 20 amp. Is that okay to do? My fan is constantly working the whole time. When I was using the 15amp i kept blowing the fuse, but that was before I changed my thermoswitch

I was reading the other gentlemans thread and he said he just moved the relays around. I am going to try that next.

If that does not work do you think my next step is checking out the thermostat?

Any help is appreciated.

Mark

No stock ATV or UTV fan should pull more then about 8 amps and should be on a 10 amp fuse. If you are blowing 15 amp fuses, which I'm sure is already exceeding the circuit's wire size limits, the fan has a problem and needs replaced. Do not increase the fuse to 20 amps. You are already risking a fire in the harness at 15. Find and fix the problem. Also, the fan, if running at full RPM, should not run all the time. If your shop told you to increase the fuse rating, and didn't test the fan's draw,.. change shops..NOW. 

[huntnmachine]

My youngest boy took my CF 600 for a hard ride with his buddies back on a hot day in August and said it did over heat, (It didn't want to start until cooled down for a bit). They run the crap out of everything so I'm not too concerned.
I rode in extreme heat this summer and didn't have a problem. My only issue with it is when the fan kicks on the side panels under the fuel tank gets very hot on your legs.
Other than that I am very happy with it.