ben125 Posted April 16, 2011 Share Posted April 16, 2011 hi on my yamaha dt125r i have recently blown my head gasket and have replaced it but there seems to be a lot of pressure in the header tank and keeps on blowing the cap off also all the water in the radiator goes and when i block the pipe going into the header tank it squirts water all through the joints and i have no experience with engines i think its something to do with the thermostat but unshure where its located can anyone help me out?? Link to comment Share on other sites More sharing options...
andyamaha Posted April 17, 2011 Share Posted April 17, 2011 hi on my yamaha dt125r i have recently blown my head gasket and have replaced it but there seems to be a lot of pressure in the header tank and keeps on blowing the cap off also all the water in the radiator goes and when i block the pipe going into the header tank it squirts water all through the joints and i have no experience with engines i think its something to do with the thermostat but unshure where its located can anyone help me out?? Link to comment Share on other sites More sharing options...
andyamaha Posted April 17, 2011 Share Posted April 17, 2011 Hi Ben puzzling have you got your head gasket right way up also check your water pump.do have a thermostat as such only has a temp sensor in the head. Link to comment Share on other sites More sharing options...
andyamaha Posted April 17, 2011 Share Posted April 17, 2011 Hi Ben puzzling have you got your head gasket right way up also check your water pump.do not have a thermostat as such only has a temp sensor in the head. Link to comment Share on other sites More sharing options...
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