Hey everyone
Recently purchased a 1980 road legal enduro yamaha DT 175.
Problem: runs like a bag of crap in the lower revs (less than say 5500) kinda makes a 2-stroky uneven sound, its a real pain in the butt when you are trying to drive around town at 50kmph, its sort of jerky and not smooth.
Although... once you hit the power band she goes like a cut cat! It also starts really easily, spark plug is looking good etc. Its just ugly in the lower revs, seems to use a fair bit of gas too.
I pulled the carb and checked the jetting, main is 135 and pilot is 25, everything was clean and clear. Air filter is clean and in good condition (looks like someone has drilled some holes in the airbox thats all).
After looking in the manual a main of 135 seems quite small, but then again it runs great in power band... or with the throttle wide open.
Any ideas?
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