smudger984 Posted October 14, 2010 Report Share Posted October 14, 2010 Hi All At present I run my boys bike at 75ml of oil to 5 litres which works out at around 66:1. I run this the same as my txt 250. I do get oil splats coming out the exchaust, GAS GAS Uk said that they run it 50ml of oil to 5 litres. What oil amount does anyone else use? Thanks Smudger Quote Link to comment Share on other sites More sharing options...
gronno Posted October 14, 2010 Report Share Posted October 14, 2010 63ml / 5litres which I think is 80:1, runs well plug colour good. Quote Link to comment Share on other sites More sharing options...
smudger984 Posted October 14, 2010 Author Report Share Posted October 14, 2010 63ml / 5litres which I think is 80:1, runs well plug colour good. With your bike if you run on a stand and rev it wide open does it bog slightly? I have cleaned the carb (its got a 70 main jet in it) cant think what else to do..... I have played with the air/mixture screw but this does not make any difference, sometimes when holding it wide open it will also pop and backfire, riding it under load it does sound ok but I still think if my boy tries to go uphill wide open it will back fire like it was last weekend. I have also checked all electrics and they are also dry and look in good condition, the bike is 2010 and only done 4 - 6 hours??? Any ideas or help would be greatly aprreciated!! Quote Link to comment Share on other sites More sharing options...
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