it is 32:1 4 ounces oil to 1 one gallon gas make sure you have a ngk b10Eg spark plug too to ignite the gas / oil properly some people use the 40:1 ratio too but that ratio might spell danger for your piston
32.1
Check with dealer
40:1
its says to use 32:1 ratio, if the bike has a fresh rebuild of the cylinder and piston use 15:1
they have oil injection. but if your are not using it, 40:1 is a good ratio.
If your Yamaha TTR 250 starts but keeps cutting out after a fuel minutes, it might not be getting enough fuel. Check to ensure the fuel line is not clogged.
It is 20:1
32:1
32:1 with Yamalube 2r
32:1
it is either your fuel lines arnt hooked up to the carbarator right or your fuel lines a clogged and it is starving for gas
how do youchange he handlebars on a 2005 yamaha 250