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2005 yfz 450 bog
Hello everyone
First of all I’ve 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 I’ve tried the zip tie mod And I’ve 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 |
Think I found the issue for future reference
Diaphragm in the accelerator pump was shot New one not the way 🤞🏾 |
Problems like that almost always ends up being a air leak somewhere. Let us know for sure.
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I will but part won’t 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 |
Ok so I got the new diaphragm installed it and still has the bog I’m 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 I’m going to pull carb & check & clear all passages any help is appreciated |
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? |
It’s never run “fine” its had the bog since I bought it |
Somehow verify if it is the oem carb also. If you are working with an aftermarket carb, I have read those can be sketchy. |
Definitely own carb my issue is the accelerator pump isn’t spraying fuel into carburetor any ideas? |
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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