I have just bought GPz 400 (1990 Ninja) that has not bean used for 4-5 months and I am lousing coulant from overflow pipe( the one that comes underneath the bike near back tire. I have remouved thermostat thinking that that is the problem but I am still lousing coulant. This hapens when I stop after bike is driven for 15-20min and the coulant that comes out is not hot.
Someone told me to bleed the couling system ( how to doo that? I have tried to do that trough bleed nipple on water pump but I am not sure for how long shuld I do this or how !? ) Could it be that there is a blockage in the system ( how can i unblock it?)