Idle sound not stable and popping

Hoaxr
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Hoaxr
I dont really know if this is normal but the idle sound seems to go up and down and pops sometimes. Something wrong with the timing or valves?

https://youtu.be/SQ0CwdTaclc
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Paw Paw 271
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Paw Paw 271 10/3/2018 2:30pm
10/3/2018 2:30pm
What bike?
Has the bike set for some time?
EFI bike?
Carb bike?
Any engine work done?
More info needed.

Paw Paw
Radfonz
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Radfonz 10/3/2018 4:06pm
10/3/2018 4:06pm
Is that idling with the cold start button on?
kb228
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kb228 10/3/2018 5:11pm
10/3/2018 5:11pm
Your idle sounds low. Make sure its at 2000rpm +/-50.
Hoaxr
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Hoaxr 10/3/2018 10:56pm
10/3/2018 10:56pm
Paw Paw 271 wrote:
What bike?
Has the bike set for some time?
EFI bike?
Carb bike?
Any engine work done?
More info needed.

Paw Paw
Kawasaki kx450f
Build year 2017
EFI bike
Maybe by the last owner

Also sounds like this with the cold start button pulled out. But a little bit higher RPM. Turning the knob doesnt change the idle RPM much.

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kb228
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kb228 10/4/2018 12:18am
10/4/2018 12:18am
Sincd your idle knob is not making a difference id probably start looking af your temperature sensors. Does the problem go away if you crack the throttle?
Hoaxr
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Hoaxr 10/4/2018 12:22am
10/4/2018 12:22am
kb228 wrote:
Sincd your idle knob is not making a difference id probably start looking af your temperature sensors. Does the problem go away if you crack the...
Sincd your idle knob is not making a difference id probably start looking af your temperature sensors. Does the problem go away if you crack the throttle?
It rides fine, but the idle is not how it should be. Even after riding is keeps idleing like this. Where is the tempature sensor located? This is my first 4 stroke so bear with me
kb228
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kb228 10/4/2018 12:30am
10/4/2018 12:30am
kb228 wrote:
Sincd your idle knob is not making a difference id probably start looking af your temperature sensors. Does the problem go away if you crack the...
Sincd your idle knob is not making a difference id probably start looking af your temperature sensors. Does the problem go away if you crack the throttle?
Hoaxr wrote:
It rides fine, but the idle is not how it should be. Even after riding is keeps idleing like this. Where is the tempature sensor located...
It rides fine, but the idle is not how it should be. Even after riding is keeps idleing like this. Where is the tempature sensor located? This is my first 4 stroke so bear with me
So we dont skip steps.., have you made sure you have consistent spark, and that your fuel delivery is adequate? Do that first. Then make sure your tps voltage is set to .6 volts.

You have a coolant sensor on the back of your cylinder. And you have an air temp sensor back by the air box.

Radfonz
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Radfonz 10/4/2018 1:35am
10/4/2018 1:35am
If the cold start knob is pulled out that perfectly normal. Don’t stress
Hoaxr
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Hoaxr 10/4/2018 2:21am
10/4/2018 2:21am
Radfonz wrote:
If the cold start knob is pulled out that perfectly normal. Don’t stress
Yes but when its off it still does the same but in lower rpm popping not a stable idle sound etc

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