2003 yz450f need help from yz450f guys on jetting

killer454

Member
Jan 3, 2011
47
0
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
 
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