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Offline Leofric

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engine idle speed
« on: 20 March, 2018, 07:31:11 PM »
Engine idle speed on my 2012 CBF1000FA is 1500rpm, after cold start up, which seems a bit high.
Have recently fitted Beowulf silencer and Healtech servo eliminator and wonder if this has affected idle speed, or is 1500 rpm normal after cold start ?
Regards

Offline alan sh

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Re: engine idle speed
« Reply #1 on: 20 March, 2018, 10:48:09 PM »
Is this 1500 rpm all the time, or only when cold?

Alan
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Offline Leofric

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Re: engine idle speed
« Reply #2 on: 21 March, 2018, 07:35:26 PM »
Alan, 1500rpm idle speed was just from cold start. Checked idle speed after ride today when engine was warm and it was about 1200 rpm which is normal, so hopefully ok.
What I did notice though was F1 light kept coming on after riding a while.
F1 light would come on at start up and then go off as it should, but then sometimes light up when riding. Have read that Healtech servo eliminator can take a while to 'settle in' so will have to see. Can't do with F1 light coming on when it shouldn't. Presume there is nothing wrong with engine as F1 lighting up is intermittent.
Regards

Offline jm2

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Re: engine idle speed
« Reply #3 on: 21 March, 2018, 10:47:14 PM »
Once running, the FI will only be brought up (other than wiring faults) by the ECU when it thinks there is a fault (usually by the input of one or more sensors).

I'd work through chap5 of the manual (pgm-fi) but the IACV that controls idle air (speed) and/or your Healtech sound favourite without finding any stored codes.
Only do it right - no bodging please.   Keeper of the failed stator list.   John.

Offline Leofric

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Re: engine idle speed
« Reply #4 on: 22 March, 2018, 12:27:33 AM »
The removal of the exhaust servo motor would appear to have caused the problem with the  F1 light but the purpose of the Healtech servo eliminator is to prevent the F1 light coming on ! If it carries on the Healtech is obviously not working.
Idle speed is ok when the engine is warm so doesn't seem a problem now.
Regards

Offline Leofric

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Re: engine idle speed
« Reply #5 on: 30 March, 2018, 07:31:13 PM »
F1 light comes on continuously after riding about 10 miles. 5 pins in ESE connector seem ok. Have sprayed wd400 inside connector blocks and am in touch with Healtech who have asked to be kept informed after I have ridden a few more miles.
With ESE disconnected F1 light flashes some code as it should.
To be continued.

Offline Leofric

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Re: engine idle speed
« Reply #6 on: 26 April, 2018, 12:29:02 AM »
Engine idle speed is 1500rpm from cold start which is apparently normal, and 1200rpm when engine warmed up which is normal. After riding more miles Healtech servo eliminator is now doing the job and F1 light only comes on briefly when ignition switched on, and stays off when riding. Have read others reporting that these servo eliminators can take a few miles 'to settle in'. So all seems ok, touch wood.