Idle rpm

Cf1000 · July 20, 2023, 05:22:51 PM

Manual states if I recall correctly 1350 +- something small.

On my machine cold startup is 1600 then it gradually lowers to 1450 where it stays when it is up to temp.

What's your machine's idle rpm?

Read somewhere in the manual idle rpm check and adjust.

Is there an adjustment on these machines for idle rpm? I thought it is entirely dependent on the ecu.

NMKawierider · July 20, 2023, 05:29:46 PM

Being EFI that is controlled by the ECU through to the idle air control valve...and that is one thing CFM has had more then it's fair share of problems with. It also gets sticky with incoming particles and oil from foam filters that were over-oiled. That fix is easy-blast one carb cleaner through the intake port or pull it and manually clean it. A bad one...is a problem because some can't be bought separate from the throttle body...at least here in the US they have a problem doing that.

Cf1000 · July 22, 2023, 04:15:51 AM

Quote from: NMKawierider on July 20, 2023, 05:29:46 PM
Being EFI that is controlled by the ECU through to the idle air control valve...and that is one thing CFM has had more then it's fair share of problems with. It also gets sticky with incoming particles and oil from foam filters that were over-oiled. That fix is easy-blast one carb cleaner through the intake port or pull it and manually clean it. A bad one...is a problem because some can't be bought separate from the throttle body...at least here in the US they have a problem doing that.

Thanks,
Where is this valve located?
From your experience would you say 1450 is high or normal?

NMKawierider · July 22, 2023, 08:52:26 AM

Quote from: Cf1000 on July 22, 2023, 04:15:51 AM
Quote from: NMKawierider on July 20, 2023, 05:29:46 PM
Being EFI that is controlled by the ECU through to the idle air control valve...and that is one thing CFM has had more then it's fair share of problems with. It also gets sticky with incoming particles and oil from foam filters that were over-oiled. That fix is easy-blast one carb cleaner through the intake port or pull it and manually clean it. A bad one...is a problem because some can't be bought separate from the throttle body...at least here in the US they have a problem doing that.

Thanks,
Where is this valve located?
From your experience would you say 1450 is high or normal?

The Z1000 says it idles at 1300 +-130 so it can idle at 1430..which I think is too high...(I think anything over 900 is too high) but the fact that it starts higher and works down says its possible the valve is sticking or slow reacting. Its on the throttle body.

Cf1000 · July 23, 2023, 03:27:10 PM

Quote from: NMKawierider on July 22, 2023, 08:52:26 AM
Quote from: Cf1000 on July 22, 2023, 04:15:51 AM
Quote from: NMKawierider on July 20, 2023, 05:29:46 PM
Being EFI that is controlled by the ECU through to the idle air control valve...and that is one thing CFM has had more then it's fair share of problems with. It also gets sticky with incoming particles and oil from foam filters that were over-oiled. That fix is easy-blast one carb cleaner through the intake port or pull it and manually clean it. A bad one...is a problem because some can't be bought separate from the throttle body...at least here in the US they have a problem doing that.

Thanks,
Where is this valve located?
From your experience would you say 1450 is high or normal?
The Z1000 says it idles at 1300 +-130 so it can idle at 1430..which I think is too high...(I think anything over 900 is too high) but the fact that it starts higher and works down says its possible the valve is sticking or slow reacting. Its on the throttle body.

Gotcha, thanks