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View Full Version : How to fix bogg on brand new stock yfz's?



atvrider26050
06-08-2008, 06:11 AM
how do you fix the bogg of the yfz stock thanks

cataway
06-08-2008, 06:47 AM
the leak jet is were i would start

leveldrummer
06-08-2008, 09:13 PM
most people have had luck with just putting a #35 leak jet, then fine tuning the rest of the jets in the carb for your altitude, look around and get some people advice on your main, pilot and needle. it will help tremendously, but some people still have a very very slight bog after.

400exrules
06-11-2008, 07:37 PM
what is the leak jet?

bsjoe
06-11-2008, 08:01 PM
I believe its a jet for a little squirter that squirts extra gas into the engine when you push the throttle fast.

leveldrummer
06-11-2008, 09:17 PM
clickthis (http://www.dieseltwitch.com/YFZ450/home.htm)

read the accelerator pump section.

XCRacer236
06-19-2008, 06:46 PM
in 2007 yamaha put a better one in the motors that was suppose to help this i believe. now whether it really helped or not i dont know.

greenblood01
06-19-2008, 09:00 PM
We put a 45 pilot in before most new ones leave the shop. It eliminates the bog.

Unlukky
06-20-2008, 07:44 AM
Zip tie the accelerator linkage, 35 leak jet, problem should be solved.

represent618
06-20-2008, 01:41 PM
Replace it with a HONDA!!!

Just kidding, sounds like jetting I agree with the posts above..