Hunting??

[X21ekx]

Morning peeps
Question?
The last few morning(not particularly cold) I've started the bike up and it's been fluctuating between 1 and 2k rpm?? Without touching the throttle(hunting for revs)
A couple of times it stalled just shortly after leaving the house, once it's been ridden for 5/10minutes it's fine??
Anything I should be particularly looking at?
Cheers in advance

 

[fizzer]

just check you have not lost one of those rubber blanks on the bottom of the throttle bodies,the ones you take off to balance the throttle bodies

 

[comberjohn]

Check for moisture in the TPS plug on the side of the left TB.
Sounds exactly like the symptoms I used to get when I had a PCV due to sealing issues. Which is why I don't use it anymore.

 

[Bendy toy]

After a cold start mine was ticking over at 2000 rpm but not hunting.
I couldn't find anything wrong and once warmed up it was back to normal.
I have a PC-V.
Wrapping connectors and the unused O2 sensor sockets with self amalgamating tape seems to have kept the weather out.

 

[Mistacat]

Find a local GS911 and check the real time values, Idle actuators vs throttle position vs rpm, might show up a vacuum leak.
But first check the air temperature sensor is reading true.

 

[Bendy toy]

Find a local GS911 and check the real time values, Idle actuators vs throttle position vs rpm, might show up a vacuum leak.
But first check the air temperature sensor is reading true.

Intersting point. I suspect mine under reads but only by a degree or two which I doubt would make any difference to cold starting tickover speed.

 

[Mistacat]

A couple of degrees will not make any difference as the BMSK Will adapt this out.
If you have disconnected the lambda sensors to fit a PC 5 this will not be true but you will be able to correct it with the PC 5.
When I said reading true , I had a bike in that was difficult to start when cold and would not run properly until it was hot.
The air temperature was 10 deg C the GS911 showed the bike reporting air temperature of 60 deg C.
Changed the sensor, Job done.