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Offline huntnmachine

High idle
« on: March 27, 2022, 04:56:51 PM »
My 2022 CForce 600 has only 50 miles on it but it idles quite high. I have to shut it off to switch from drive to neutral. If I let it idle in gear it will move forward if I don't apply the break, is this just a break in thing or does the idle need adjusting?
I'm heading to Northern Ontario in a few weeks for a three day trip so I would like to get this resolved if there is an issue
2022 CForce 600

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Offline NMKawierider

Re: High idle
« Reply #1 on: March 27, 2022, 05:23:38 PM »
Clearly that's too high so..need to find out why. There have been some issues with the idle air control valve but also some with the 21s have had the throttle cable adjusted too tight.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline Outdoorsman16

Re: High idle
« Reply #2 on: March 28, 2022, 08:12:08 AM »
You're valves need to be adjusted.

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Offline huntnmachine

Re: High idle
« Reply #3 on: March 28, 2022, 06:12:55 PM »
Even though it is brand new the valves need adjusting? that doesn't seem right, but thanks
2022 CForce 600

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Offline Outdoorsman16

Re: High idle
« Reply #4 on: March 29, 2022, 06:57:18 PM »
Ok. You think because its brand new that its not the problem , I guess you'll have to figure it out on your own. When a guy offers you some help after going through the very same issues and you brush it off as nothing , you don't deserve anyone's help or opinions.

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Offline NMKawierider

Re: High idle
« Reply #5 on: March 29, 2022, 07:10:46 PM »
I'm a big believer in checking the valves anyway..and with today's EGR systems..who knows what effect tight..or loose valves may play on running. Worth a check for piece of mind for sure. When mine was brand new..when it had it's first oil change I also checked the valves. Something I have always done. So glad I did..most were as expected or near the outer limits but two were actually well under the minimum and one of those had a seized roller that was already starting a wear mark.   
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline huntnmachine

Re: High idle
« Reply #6 on: March 30, 2022, 03:20:52 PM »
Outdoorsman16
I wasn't questioning what you said I was just shocked that the valves on a new machine maybe the problem. I thanked you for your input so not sure why you took my reply that way.
I am new to CF Moto (I had Polaris and currently own and Arctic Cat 500 Limited...my wifes now) so thus the question. I can update.

It seems like the high idle is only when the ambient temp is below 32F. Today it finally reached 50F and the idle was much less. Shifting was a none issue. Thanks for your help, sorry if you took my reply the wrong way....was not my intent
2022 CForce 600

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Offline glenlivet

Re: High idle
« Reply #7 on: June 19, 2022, 06:33:45 PM »
A malfunctioning idle air control valve can cause a high idle as well as the inability to idle or to start without depressing the throttle. I am going through this issue right now. Apparently for emissions reasons CF Moto wants to sell this as a whole throttle body/intake manifold and TPS unit, at great cost. The iacv by itself however is an easy replacement part. Finding the right one on the other hand...
For a nation to believe it can tax itself into prosperity is like a man standing in a bucket and believing he can raise himself by pulling on the handle - Winston Churchill

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Offline glenlivet

Re: High idle
« Reply #8 on: June 19, 2022, 07:24:28 PM »
It begins to look like the CF Moto's Delphi Idle Air Control Valve is becoming a rather common failure item. I found my 800 Z force starting to occasionally refuse to idle after thorough warming up. Releasing the throttle at a stop made it just die.  Also it would not start without I give it throttle and nurse it to keep it alive.
Some research pointed toward the idle air control valve, a stepper motor and plunger that regulates the amount of air admitted to the intake to allow a proper idle RPM. (not a simple solenoid that fully extends when activated, and fully retracts with a spring when released. This is a motor that extends and retracts its plunger by a given amount and it stays where it's put) The unit behaved as though extended and 'stuck' there, not allowing any air into the throttle body when the throttle is closed.

Hoping the problem might be simple grit on the plunger I cleaned and reinstalled the IACV (It's not a sensor so there's no issue with using the right cleaning 'stuff'), and I went on a several hours long ride. Toward the end however it began to idle at around 2000-2100 RPM, as though the plunger were stuck fully retracted this time, and acting just as though there was a big vacuum leak at the intake! By the time I got back to the truck it idled normally again.
Now a stepping motor is pretty strong and the likelihood the plunger would just up and stick one way or equally stick the other, seems low.
I have an idea that there's an electrical fault in the IACV and I'm looking for a new one.

Thing is, it seems that CF Moto doesn't want to sell just the IACV nor just the TPS either, their parts diagrams and those of Alpha Sports don't even list the IACV or TPS separately from the throttle body/intake manifold, they just want to sell you the whole intake manifold with TB, TPS, and IACV all as one very expensive piece!

eBay has a few identical looking IACV's (for Hisun 400, 500 etc) at much more reasonable rates, some Delphi, some not. I think I'll pick one and try my luck. :)

Edit: I got a tip from another site member re: a very reasonable priced and exact matching IACV, on eBay. I ordered one and I will update this post when it shows up.
« Last Edit: June 20, 2022, 03:02:39 PM by glenlivet »
For a nation to believe it can tax itself into prosperity is like a man standing in a bucket and believing he can raise himself by pulling on the handle - Winston Churchill

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Offline huntnmachine

Re: High idle
« Reply #9 on: June 20, 2022, 07:12:25 PM »
Clearly that's too high so..need to find out why. There have been some issues with the idle air control valve but also some with the 21s have had the throttle cable adjusted too tight.

I would buy a throttle adjustment over a valve adjustment

Thanks for your input   /quote]
2022 CForce 600