2003 yz450f need help from yz450f guys on jetting

[killer454]

i have a yz450f and it has a slight bog when you go from 1st to 2nd while on the gas real good.
i have checked the excelerator pump and it is set perfect.
i live in missouri and from 0-1000 ft is what i ride in elavation.
valves and head have been redone recently

im running a 160 main right now with a 48 pilot and it still has the bog.

i bought the bike it had a dj for the main but cant read the size on it.

can anybody give me a good list of jets to buy,and a good starting point to start jetting procedures for this bike.
i will even buy aftermarket parts if it helped your bike with this problem.

thanks from killer454

 

[Matt90GT]

The bike should be good stock. Should have a 45 pilot, stock main and #40 leak jet.

Be sure the leak jet and 1 way valve is clean:

http://home.comcast.net/~m.bobbitt/yz426fm/tech/floatbowl.jpg

When I had my 03 yz450, it had plenty of power. I did have a JD needle in it, 45 pilot, stock everything else. I did swap the forks with a set of TC units off a 05+ bike which helped tons.