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2005 yfz 450 bog

  #1  
Old 12-13-2018, 07:17 PM
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Default 2005 yfz 450 bog

Hello everyone
First of all Iíve searched this problem like crazy and read every post about same problem trying new things along the way
My problem is the quad will start up and idle good but when I crack the throttle it bogs
Bogs so bad it shuts off
If I slowly increase the throttle it will go through the gears but no sudden throttle
Quad is all stock
So far Iíve tried the zip tie mod
And Iíve also changed the jets with no improvement
Jets I went with are 168/50
If anyone has any ideas before I bring to dealership
It would be appreciated
 
  #2  
Old 12-13-2018, 09:14 PM
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Think I found the issue for future reference
Diaphragm in the accelerator pump was shot
New one not the way
🤞🏾
 
  #3  
Old 12-14-2018, 06:20 AM
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Problems like that almost always ends up being a air leak somewhere. Let us know for sure.
 
  #4  
Old 12-15-2018, 01:33 PM
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I will but part wonít be here for 2 weeks!
Ordered it on eBay
Should of paid $10 more at dealer & had i it in 2 days
But oh well
I will update asap
Thanks
 
  #5  
Old 12-29-2018, 04:38 PM
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Ok so I got the new diaphragm
installed it and still has the bog
Iím still not getting any fuel spraying into carb when I hit the throttle?
i noticed other replacement diaphragm kits come with a rod ? Not sure what that is?
thinking Iím going to pull carb & check & clear all passages
any help is appreciated
 
  #6  
Old 01-01-2019, 10:34 AM
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If your machine ran fine before and now it doesnt, the jets were fine.

Did this problem start after the quad was sitting unusued for more than a month without fresh, stabilized fuel?

Make sure the simple things are right. Clean, unobstructed air filter, no air leaks, clean fuel filter in tank etc,

Has your carb been worked on before? If not, and it doesnt have the rod, then you probably dont need. The rod unless it was a factory upgrade to the kit for your machine.

Was the kit you installed an oem kit?

any change at all in performance after the installation?
 
  #7  
Old 01-01-2019, 10:36 AM
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Itís never run ďfineĒ
its had the bog since I bought it
 
  #8  
Old 01-01-2019, 10:42 AM
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Somehow verify if it is the oem carb also. If you are working with an aftermarket carb, I have read those can be sketchy.
 
  #9  
Old 01-01-2019, 10:43 AM
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Definitely own carb
my issue is the accelerator pump isnít spraying fuel into carburetor
any ideas?
 
  #10  
Old 01-02-2019, 08:40 AM
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Have you tried the zip tie mod? Zip tie around the pump arm and throttle. Do a search and you will find directions.
 

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