How much alcohol to use in tank?

[Gnasher]

A lot of mid 80's on bikes are prone to icing these bikes have heating systems (water or electrical) fitted as standard to over come the issue, the Fazer has such a system.  If you look at the carbs you will notice small black pipes going into to even smaller polished elbows this is the heating system.  Due to insufficient anti freeze mixture or poor quality anti freeze these and other small galleries are prone to blocking and therefore stop the system working, if you search the board myself and others have posted how to sort the issue.

Basically you dont need anti freezing additives just fix the heater system.