[Dutchtrekker]

The new 800 of 2017 ( is in Europe called 820 ) has a problem. Fast turns and heavy braking causes the Oil pressure light to come on. The dealers don't know why that happens; every thing seems to be oke. Now they overfill the engine with 0,5 liter Oil. It is better now, but not gone. Is that a Problem in issue in USA / Canada ??

In 2013 the first serie of 800 ( the 800-1 engine) had the same problem............

[NMKawierider]

I have not had this problem with my Z8. But if I did I think I would put an actual pressure gauge on it to see what it's actually doing and if it's in the normal range the rest of the time. One that is low anyway may have a pump or pick-up problem. Maybe the pickup screen is blocked. May also be just a bad sending unit..some have been found.

[asam9]

The new 800 of 2017 ( is in Europe called 820 ) has a problem. Fast turns and heavy braking causes the Oil pressure light to come on. The dealers don't know why that happens; every thing seems to be oke. Now they overfill the engine with 0,5 liter Oil. It is better now, but not gone. Is that a Problem in issue in USA / Canada ??

In 2013 the first serie of 800 ( the 800-1 engine) had the same problem............

Did you ever resolve this issue. Mine does the same thing

[Skogsvarelse]

Check the cable from the oil switch to the dash. My dad had about the same problem on his 800 and found out the wire to the light in the dash had come out a bit so somethimes it lost conection and the light came on often when the machine was hot and was on uneaven terrain.

He first measured the oil preasure to make sure that was not the problem, then changed toe oil preasue switch and that didn't halp ither so he started to check the wires and found that it almoust had came out of the display.

[asam9]

You know where the connection had the problem?  Its hard to follow the wire

[Diego]

Hi, did you solve the issue? It seems to be related with the oil moving forward and to the sides, evertime you brake or turn rapidly. This is tipically due to a low oil level. The oil intake tube is note deeply inmersed into the oil, so, every time the oil flows away, it fails in sucking up the fluid. You mentioned that the service guy overfilled the engine with oil, and the problem was almost solved. It makes me think that there is some tube/pipe disconnected in the oil circuit, and the oil pump is sucking the fluid from a higher level than it should. Is this teory makes any sense to you? Regards,

[asam9]

Hi, did you solve the issue? It seems to be related with the oil moving forward and to the sides, evertime you brake or turn rapidly. This is tipically due to a low oil level. The oil intake tube is note deeply inmersed into the oil, so, every time the oil flows away, it fails in sucking up the fluid. You mentioned that the service guy overfilled the engine with oil, and the problem was almost solved. It makes me think that there is some tube/pipe disconnected in the oil circuit, and the oil pump is sucking the fluid from a higher level than it should. Is this teory makes any sense to you? Regards,

I haven't figured it out yet. The dealer says that cfmoto wants them to tear apart the motor next to check the oil pump. But they can't do that for another 5 weeks. I'm hoping Someone has a answrt tk this problem by then. It seems alot of 800 out there are having this problem and its not the oil pressure switch or low on oil. Something must be wrong internally

[Grandmaster Splash]

Oil light coming on under heavy braking and cornering CFMOTO C force 800 X8 Euro 4 spec

Your countries dealer and importer will have little or zero knowledge of this as their dealer support technical training network and technical bulletin reporting is potentially non-existent if it is the same as is here in the UK. Here in the UK they do not have the time or inclination to begin to understand or want to understand.  Their only aim being to sell quad bike bikes and quad bike parts, the majority of dealers here in UK are Garden Machinery providers for this type of quad bike, there are few that specialise in off road and on road quad bikes and the in depth technicalities and requirements. There are some professional & knowledgably quad bike dealers, but they deal exclusively with racing quad bikes only.

This is a common problem on the V twin cylinder, liquid cooled, 4-stroke, SOHC, 8-valve,  800cc engine, more of a problem if you believe the engine dipstick indicated “Full Oil Level” position on the dipstick as produced and exited the CFMOTO factory.

 
If you follow the instruction in the CFMOTO manual the engine is filled with oil when at the top of the taper bit on the dip stick, well it might be but the oil light will come on under heavy braking and cornering. With extensive testing and different combinations in my experience fill the engine until the oil level is approx. 25% above the taper on the dipstick. I am not sure what this equates to in oil quantity or if indeed it matches the extra quantity of oil your dealers have recommended. This definitively worked for me, with zero issues of oil light coming on under heavy braking and cornering once filled as recommended above.

To recommend an engine strip down and check from your dealer is in my opinion unwarranted and sounds like an excuse to generate some labour income without extensive diagnosis beforehand. Like for example checking oil pressure with an oil gauge checking and testing the oil light switch and its circuitry. All which will cause an oil light to come on if there are issues, oil samples should also be taken and sent away for analysis before and engine strip down. But if there are true oil pressure oil circulation issues, drain some oil out, squiggle it around in your fingers and look for metal particles, smell it for clutch material, use a magnet to check for metallic parts. It is referred to as a rough and quick finger check, not scientifically accurate but a good pointer, if you see/smell bits of metal or clutch material then and only then should and engine strip down be considered.

The engine strip down should be the last resort, there are many basic checks and tests as above to be considered before we reach engine strip down

Take care & enjoy your ride Grandmaster Splash & his Furious Drive

[ctdls]

You raise many good points that explain why this brand will never be a serious contender in the off road business. In fact they cause serious issue's with very low re sale value, trade in etc. Leaving the consumer with a very bad experience dealing with what they thought was a bargain.

The lesson the Chinese brand is not capable of learning is the best or worst product will not survive the test of time if it is not supported properly. In this case of the CFMOTO brand they will never attract the true professional dealer & if they do by spewing unrealistic BS it will be sort lived.

You did make one comment I disagree with & will try & explain why. "To recommend an engine strip down and check from your dealer is in my opinion unwarranted and sounds like an excuse to generate some labour income without extensive diagnosis beforehand."

Professional after sale service needs to be profitable, this is how they stay up to date with diagnostic equipment, tools & training. The technology moving into off road industry is just like the automotive industry, accept it or be left behind.

The very last thing a good service department wants to do is work on somethings that will cost them money & time. In the case of CFMOTO doing warranty work they pay a reduce hourly rate the shop needs to be profitability. CFMOTO also flat rates their warranty work so sword now has two edges, reduce hourly rate & not enough time for through job.

My point here a professional shop will never tear into the problem you describe here without it being a last resort.

[Grandmaster Splash]

Hi ctdls,

All points noted especially flat rate or zero rate for warranty work from most brands these days, in fact if the dealer diagnosis is in-correct for some the brands do not pay the labour warranty rate. Its a night mare as you state and these days warranty is not a profitable part of the business. Selling labour and parts are the most profitable elements of the business.

As a seasoned professional Technical Consultant of 45 years working for major Franchised European Vehicle manufacturers I also acknowledge the other valid points you make concerning the Automotive industry as a whole and yes it is the same in the Quad bike world for some but not all.   

However my point concerning the post was if CFMOTO and or the dealer authorised a strip down of this engine it is bizarre to do this without simple diagnosis checks/tests before hand, with or without warranty labour payment guaranteed from CFMOTO.

Also acknowledge your extremely valid point of "After Sales Customer Support" treat your customers poorly and you loose loyalty, treat your customers well and they return time after time. Amazon, good old Geoff hey, spend a pound with him and you get 6 emails confirming your purchase. Spend 1,000's of Dollars or pounds for a CFMOTO product and they do not even acknowledge that, let alone responding to an email for assistance. 

Take care enjoy your ride............Grandmaster Splash & his Furious Ride

[Greendot]

I have the same problem on my Cforce 820.
I thought there was some sensor error, but unfortunately it is not, sometimes when I stop the quad the oil pressure drops to zero and quickly rises again and therefore the oil light flashes. 
Quad is 2017. Y. A possible problem is the oil pump, the oil pressure regulator and the worst flying bearings on the crankshaft.  Did anyone destroy the engine on that 800/820 model?
 
Apologies for bad English

[BoatFixx]

My Brand New Zforce 800 Trail...
I took it out yesterday for its first shake down ride of only 15 miles.
I left the crankcase oil original not knowing if they are using a specific "break in" oil or just a standard 10w40 oil.
I too am seeing a low oil pressure light coming on, and off after the engine is at running temp, and seeing it flicker as I was bouncing, and braking along a mountain trail.
Therefore, I too have concerns.
Thursday, I am taking it to Long Beach on our Washington coast which is a drivable beach of some 25 miles.
Up just above the tide line, but not up in the deep sand is a nice harder surface to run on. I will do further testing and break-in there.
I will be prepared to slightly overfill the oil as part of my testing and if necessary.

[BoatFixx]

My oil pressure at idle was @ 5psi at best.
I took it back to my dealer a week ago.
After only 4 work days, CFMOTO authorized my dealer to replace the entire motor.
I'm very impressed at how fast they are taking care of this for me!