My son has a yamaha dt125r, we have to keep filling with coolant/water as it shoots out the expansion tank when riding. Changed engine & radiator to no avail please help
if water is coming out of the expansion tank under the side panel it is almost definatly head gasket
des
September 2008
give the bike 2 me and the problem is solved
bluerider
August 2008
Hi
My son had the same problem.
We fitted a new radiator cap and a new cap for the expansion tank, which was a much tighter fit than the old one and also removed the thermostat from the top of the cylinder head. It seems to have stopped the coolant problem but the bike still overheats on long journeys.
I hope this helps
Andy
July 2008
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