Fabian
Well-Known Member
Firstly you have a problem: your brothers and brother-in-laws fail to respect that "your bike" is specifically "your bike", and it's not someone elses toy to youride and then walk away from the damage they've caused.
Before you go too much further, that fundamental problem needs to be fixed; their lack of respect for your possessions.
The engine needs a minimum about of oil added to the fuel. The very leanest oil/fuel mixture these engines will cope with (when given a hard time, for an extended period of time) is 40:1, but if really beating on the engine, you're best to run the oil/fuel ratio at 25:1
Before you go too much further, that fundamental problem needs to be fixed; their lack of respect for your possessions.
The engine needs a minimum about of oil added to the fuel. The very leanest oil/fuel mixture these engines will cope with (when given a hard time, for an extended period of time) is 40:1, but if really beating on the engine, you're best to run the oil/fuel ratio at 25:1