serious bog

[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?????

[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

[THEQUADSHOP]

48 pilot jet

[Pappy]

no need to do anything but play with the jetting.

[250r4life]

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...

[oldskoolex400]

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

[250r4life]

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

nope

[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.

[jjm400ex]

do u have to remove carb to change pilot

[infantry317]

-00 LEAK JET $10

[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.

[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