01 rm125 problems

im posting this on request from my brother. he recently bought a 2001 rm 125 and is having trouble with it running to rich. the previous owner but a bigger jet in it but we dont know what size, the needle is on the 1st clip, he's running a 32:1 ratio mix, and the filter is alil dirty but even when it was new we still had this problem

any suggestions??

-Justin

alright sweet. oil blows of the pipe tho when riding it but when its ready to be put away the oils runs out the pipe.. any reason for that??

-Justin