Odd Noise From Throttle Body

Makkat · 12-19-2017, 09:39 PM

I have removed the Cobra fuel controller, had the ECU flashed and put everything back together tonight (showed error 98 and reset everything). When I turn the key on the fuel pump cycles like normal and I get a high pitched buzz/whine coming from the throttle body actuator. The bike starts and runs but I shut it off due to the noise. If I turn the key off the throttle plate cycles open and closed and the buzz/whine goes away (changes tone while the throttle plates are moving). Anybody else have this problem, I think it is more associated with removing the fuel controller from the injectors than the flash but I don't want to rule anything out.

Makkat · 12-19-2017, 10:29 PM

Here is the video, you can hear the fuel pump shut off and the noise continue.

vimeo.com/248086706

Peg · 12-20-2017, 02:12 AM

vimeo.com/248086706

Nothing there that sounds unusual to me - sounds exactly like mine does.

**buckey1313** · 12-20-2017, 02:41 AM

I agree with Peg it is nothing different than a 1700 normal sound

Makkat · 12-20-2017, 07:56 PM

Confirmed with Ivan also, normal.

Snake Ranch · 12-21-2017, 10:34 PM

Quote:

Originally Posted by Makkat

I have removed the Cobra fuel controller, had the ECU flashed and put everything back together tonight (showed error 98 and reset everything). When I turn the key on the fuel pump cycles like normal and I get a high pitched buzz/whine coming from the throttle body actuator. The bike starts and runs but I shut it off due to the noise. If I turn the key off the throttle plate cycles open and closed and the buzz/whine goes away (changes tone while the throttle plates are moving). Anybody else have this problem, I think it is more associated with removing the fuel controller from the injectors than the flash but I don't want to rule anything out.

Correct me if I am wrong, but:

Part of that sound is the fuel pressure being pumped up and the rest is the computer going through it's boot up process. I think if you watch your gauges you will see them go through the same start up process.

I let mine go through the cycle before each startup.

Just my 2 cents.

**smokier** · 12-23-2017, 05:45 AM

Quote:

Originally Posted by Snake Ranch

<snip>

I let mine go through the cycle before each startup.

Just my 2 cents.

Greetings,

Wasn't there another thread on this topic of waiting a few seconds after turning on the key before starting? If my fading memory is recalling correctly, if one turns the key on and starts the bike immediately, before the bike is 'ready', odd gauge or light behavior was frequently obeserved?
Something like that.

I am with you Snake. I let it go about ten - twelve seconds after the key is on before hitting the button. This actually gives me time to back the bike out of the garage and get turned around to head out.

To the original post: Sounds very similar to what I hear on mine...

Ride safe,
Smokier

Makkat · 12-23-2017, 10:58 PM

I always wait for the fuel pump to cycle before starting, I just hadn't heard the noise coming out of the throttle body/plate before. Talked to my mechanic who told me cars do the same thing, you just never hear it.

12-19-2017, 09:39 PM	#1
Makkat Jr. Member Join Date: Jun 2016 Location: KC Posts: 26	Odd Noise From Throttle Body I have removed the Cobra fuel controller, had the ECU flashed and put everything back together tonight (showed error 98 and reset everything). When I turn the key on the fuel pump cycles like normal and I get a high pitched buzz/whine coming from the throttle body actuator. The bike starts and runs but I shut it off due to the noise. If I turn the key off the throttle plate cycles open and closed and the buzz/whine goes away (changes tone while the throttle plates are moving). Anybody else have this problem, I think it is more associated with removing the fuel controller from the injectors than the flash but I don't want to rule anything out. Login or Register to Remove Ads Last edited by Makkat; 12-19-2017 at 10:30 PM.
	0

12-20-2017, 02:12 AM	#3
Peg Sr. Member Join Date: Apr 2012 Location: West Coast, North Island, New Zealand Posts: 1,375	vimeo.com/248086706 Nothing there that sounds unusual to me - sounds exactly like mine does. __________________ Nothing screams poor workmanship like wrinkles in the duct tape '02 1500 blonde Nomad (Sold) '97 800 burgundy Classic (Sold)
	0

12-20-2017, 02:41 AM	#4
buckey1313 Join Date: Feb 2013 Location: Westlock, Alberta Posts: 442	I agree with Peg it is nothing different than a 1700 normal sound __________________ Dave Leyh Edmonton, Alberta 2009 Kawasaki 1700 Vulcan Nomad
	0

12-20-2017, 07:56 PM	#5
Makkat Jr. Member Join Date: Jun 2016 Location: KC Posts: 26	Confirmed with Ivan also, normal. Login or Register to Remove Ads
	0

12-19-2017, 10:29 PM	#2
Makkat Jr. Member Join Date: Jun 2016 Location: KC Posts: 26	Here is the video, you can hear the fuel pump shut off and the noise continue. vimeo.com/248086706
	0

12-23-2017, 10:58 PM	#8
Makkat Jr. Member Join Date: Jun 2016 Location: KC Posts: 26	I always wait for the fuel pump to cycle before starting, I just hadn't heard the noise coming out of the throttle body/plate before. Talked to my mechanic who told me cars do the same thing, you just never hear it.
	0