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serious bog
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Posted by: jjm400ex

06 yfz all stock, couple of months old.
has a serious bog and will sometimes die. not even fun to ride because of this. What is the stock size m.j. and pilot jet.
Does anybody have any suggestions on how to cure this?????

Posted by: THEQUADSHOP

main jet 158, need to install a power now system,look on power now website ,it goes between carb and air box to tumble air flow better

Posted by: THEQUADSHOP

48 pilot jet

Posted by: Pappy

no need to do anything but play with the jetting.

Posted by: 250r4life

quote:
Originally posted by Pappy
no need to do anything but play with the jetting.

IMO power now is a waste of money... great in theory, but...
my buddy has had good success with the accelerator pump, although im sure jetting could take care of it as well...

Posted by: oldskoolex400

didnt they change that on the 06s to where it doesnt need the quickshot?

Posted by: 250r4life

quote:
Originally posted by oldskoolex400
didnt they change that on the 06s to where it doesnt need the quickshot?

nope

Posted by: 07yfzdenial

uhh, i have the Scary Fast power now unit and it beats the **** out of an ACC pump anyday. I have the 07 SE 450 also. 170 main and 48 pilot.

Posted by: jjm400ex

do u have to remove carb to change pilot

Posted by: infantry317

-00 LEAK JET $10

Posted by: 06YFZ450SE

I have both Power Now and Power Now Plus and a Boyesen Quick Shot. and Jetted the Carb and My Throttle reponce is awsome and no bog.

Posted by: blown331

my buddies yfz450 had the same issue

he put ona k&n powerlid, + k&n + cam mod

we jetted the bike to 162 main, 45 pilot, needle n the 2nd click down (dyno jet needle?) and fuel screw 2 1/2 turns out

throttle response has amazingly increased, no bog