our '89 hawk has developed the nasty habit of pissing coolant out of the drain tube even though the temp gauge registers nothing higher than a mid-level engine temperature. the coolant flow stops after we turn off the bike to let it cool. you can hear it burbling somewhere within the bike.
i've checked the fan by shunting the fan switch and the fan works and the fuse is good. we recently swapped out what we presume was a 50/50 glycol mix for a water wetter solution (this was done just to change out the existing coolant which appeared to not have been changed in eons, not to drop the engine temp). the bike temp gauge registers temperature, though it could be bad and out of calibration.
barring the situation where the thermostat AND the fan switch have given up the ghost, it seems that the general conclusion on this board is that the radiator cap is bad and can no longer hold pressure in the cooling system.
i have seen mention on BARF that people have swapped out this cap with one that vents at a higher pressure. is this possible? recommended? should i go through a dealer to get this part? should i replace the fan switch or thermostat just to safe?
thanks for your help.
jeremy and traci
i've checked the fan by shunting the fan switch and the fan works and the fuse is good. we recently swapped out what we presume was a 50/50 glycol mix for a water wetter solution (this was done just to change out the existing coolant which appeared to not have been changed in eons, not to drop the engine temp). the bike temp gauge registers temperature, though it could be bad and out of calibration.
barring the situation where the thermostat AND the fan switch have given up the ghost, it seems that the general conclusion on this board is that the radiator cap is bad and can no longer hold pressure in the cooling system.
i have seen mention on BARF that people have swapped out this cap with one that vents at a higher pressure. is this possible? recommended? should i go through a dealer to get this part? should i replace the fan switch or thermostat just to safe?
thanks for your help.
jeremy and traci
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