My rm 125 has been leakin gas when i leave the gas on and its because the float height is wrong. when the bike is off the float doesn't shut off the gas so it leaks. what i need to know is the height so it will work properly.
Are you sure it is the float height or is the needle/seat worn and need replacing? Don't have our manuals anymore but if I recall correctly our 05 was 8.7 mm.