is my thermostat f@@ked?

[markauk]

was driving in heavy slow motorway traffic, GT125 with Malossi 210 kit cut out but restarted, then backfired alot and cut out, started again..... pulled into hard shoulder and saw that 2 rubber pipes had melted at the nipples - the 2 brass nipples in the photo
not the tube that carries the coolant
what would cause it to overheat so much that the pipes melted? is the thermostat goosed or is there another reason??

was driving in heavy slow motorway traffic, GT125 with Malossi 210 kit cut out but restarted, then backfired alot and cut out..... pulled in and saw that 2 rubber pipes had melted at the nipples
not the tube that carries the coolant
what would cause it to overheat so much that the pipes melted? is the thermostat goosed or is there another reason??

[e type]

Thermo or water pump or the head gasket could be goosed tbh or all of them lol don't u just know it ..

[markauk]

turns out the sensor for the temp gauge had come off, so Ive been riding it without a clue that it was overheating..... sensor wire re-connected but the gauge is going to red within a few minutes
any ideas?

[e type]

All of the above if none of them a blocked rad but I bet it's the head gasket or water pump ...

[markauk]

changed the thermostat but its still overheating.... how big a job is changing the water pump and is there a way of seeing if it isnt working?

[JETEX]

Do the coolant hoses go solid when the engine is running ? If so, the head gasket has gone. There is a test for this with a chemical " sniffer ".