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Discussion Starter #21
If I were in your shoes I’d try @Dust Devil recommendation. I have lurked on the website a lot and he always gives sound advice. Checking valves costs no money and is a great place to start. If you find that’s not the problem maybe inquire what a dealership would charge to check your butterfly.
That was my plan. My feeler gauges arrived today so hopefully get to check it this weekend!
 

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Here is the link to the post I found. Unfortunately it’s from 07 and idk how I would find the guy and it sounds like an issue from the dealer but I do think i have a similar issue
Quote from the same posting...(
kawi_kx
06-08-2007, 06:30 AM
I got the quad fixed last night! The butterfly was not properly adjusted from the factory. It was completely shut unless the throttle was open, therefore there was no fuel air mixture unless you opened the choke/idle knob or opened the throttle. I adjusted the butterfly valve to Kawasaki specs and it works beautifully now.
^^_^^__^_

The only things is I can't find any spec's on the butterfly adjustment...If you want to try yourself...I recommend you adjust, 1/8 of a turn each time until you think it's fix...!!

With that said...The screw on the bottom of the throttle body is the butterfly adjustment...see picture below

You'll need to install & reset the TPS to spec's 0.58~0.62 DCV each time you adjust the butterfly every 1/8th turn...

Here's a thread from Duster about the throttle body... It's just a throttle body, don't be skeerd
Quotes from this thread...
Duster
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12,056 Posts
Discussion Starter • #9 Jan 14, 2011
OK here is looking into the back / air filter side of the throttle body.

Throttle butterfly is closed... so how does it breathe to idle...

The answer is through a straw... lol...

As you can see in the 1:00 position there is a port...
I call this the idle air bypass venturi.

As air bypasses the throttle butterfly through this venturi.



The screw with the yellow line is the butterfly adjustment..the yellow line is the factory setting. just in case you have to return it too factory spec's..

Good Luck...!!!
 

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Discussion Starter #23
So I currently have my whole intake off. I completely removed it and have been cleaning all the dirt and scum off it Since I was waiting on some tools to come in. I tried looking into the throttle body while moving the choke in and out to see if I can see anything but unfortunately I can’t see anything past the throttle valve. Is there anything I could look for while I have the intake off? If not I will be putting the intake all back together tomorrow and will move on to check my tps voltage and valve clearances
 

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Discussion Starter #24
Quote from the same posting...(
kawi_kx
06-08-2007, 06:30 AM
I got the quad fixed last night! The butterfly was not properly adjusted from the factory. It was completely shut unless the throttle was open, therefore there was no fuel air mixture unless you opened the choke/idle knob or opened the throttle. I adjusted the butterfly valve to Kawasaki specs and it works beautifully now.
^^^^_^_

The only things is I can't find any spec's on the butterfly adjustment...If you want to try yourself...I recommend you adjust, 1/8 of a turn each time until you think it's fix...!!

With that said...The screw on the bottom of the throttle body is the butterfly adjustment...see picture below

You'll need to install & reset the TPS to spec's 0.58~0.62 DCV each time you adjust the butterfly every 1/8th turn...

Here's a thread from Duster about the throttle body... It's just a throttle body, don't be skeerd
Quotes from this thread...
Duster
Registered

Joined Mar 5, 2009
12,056 Posts
Discussion Starter • #9 Jan 14, 2011
OK here is looking into the back / air filter side of the throttle body.

Throttle butterfly is closed... so how does it breathe to idle...

The answer is through a straw... lol...

As you can see in the 1:00 position there is a port...
I call this the idle air bypass venturi.

As air bypasses the throttle butterfly through this venturi.



The screw with the yellow line is the butterfly adjustment..the yellow line is the factory setting. just in case you have to return it too factory spec's..

Good Luck...!!!
I’m going to check my valves and tos voltage before I attempt this. You might be right as far as this not being my issue considering it seems like it’s a very rare issue that not too many people have
 
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