Idle sound not stable and popping

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10/3/2018 1:21 PM
Edited Date/Time: 10/3/2018 1:22 PM

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?

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10/3/2018 2:30 PM

What bike?
Has the bike set for some time?
EFI bike?
Carb bike?
Any engine work done?
More info needed.

Paw Paw

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10/3/2018 4:06 PM

Is that idling with the cold start button on?

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10/3/2018 5:11 PM

Your idle sounds low. Make sure its at 2000rpm +/-50.

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10/3/2018 10:56 PM

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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10/4/2018 12:18 AM

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?

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10/4/2018 12:22 AM

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 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

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10/4/2018 12:30 AM

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 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? 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.

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10/4/2018 1:35 AM

If the cold start knob is pulled out that perfectly normal. Don’t stress

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10/4/2018 2:21 AM

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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