flyf4i

Member
Apr 8, 2007
1
0
hey guys, I have performed several 125 rebuilds and I know the inns and out of the 2 stroke engine. however i have bought my first yamaha 125 and it has done nothing but disappoint me. it gives symptoms of the jetting being off but it varies from ride to ride even though it is in the same weather conditions. i seem to remember that in the early 2000's yamaha increased their carbs to flow more but they all wound up running fat. does anyone remember the years yamaha increased the size of the carbs? and what size they were before that.
 
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