January 9, 201016 yr Hello again. About a month ago I had a problem with me carb on a ty 125. The float was blocked thus flooding me engine. Thanks to various people on this site alls working dandy now. Its just the first time I took it out I had this muck dribbling out the exhaust. I assummed it was just excess fuel passing through the system. Anyway I've taken the exhaust off to decoke and there was quite alot of this treacle. Please tell me its not me autolube system needs tinkering with as I've looked at me manuel and it looks a bit beyond me. Cheers Squid.
January 9, 201016 yr That thick black treacle is un-burnt oil so its over-lubing the barrel. Either re-adjust the autolube or blank it off and mix in the tank and use a good oil or a fully synthetic one that will burn off better thou they all leave some unburnt oil behind Dave
January 9, 201016 yr Yamaha pumps have small shims to adjust them.There is/was a special tool to sort them. Many were set rich back in the day. Your best bet would be remove it altogether and use premix, you can run a leaner mix nowadays compared to when your bike was new as oils have moved on big time. Someone else will need to advise on the mix.
January 9, 201016 yr Slosh 500ml of petrol around the disassembled exhaust to get the goop out. Let it stand before using..... to let excess evaporate.
January 12, 201016 yr You could also put the entire system on the BBQ or a fire and heat it to burn out the gunk!
January 12, 201016 yr hi squid , cant see no reason that the 125 would not be ok on 40:1 mix but i can be corrected if wrong guys
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