My 2000 burgman 400 starts fine from cold and runs for 5 minutes and then cuts out and refuses to start again until engine is cold, i have repleased rubber inlet pipe between carb and engine and cleaned out carb and checked the diapharm which looks fine, would be very grateful for any ideas thanks.

there is a code in the ECM....need to find someone that has the scan tool able to access the ecm on your bike.

It would seem that you have a failed alternator. you should take it to a Suzuki mechanic and get the Alt checked.

Did you find a fix?
Same problem, wondering how you fixed it?

It sound more like a plugged catalytic converter. When you start the engine the pressure starts to build until the engine sufficates then after you let it set the pressure bleeds off and lets the engine restart.

Ok, time for car school. The vehicle is operated by the computer, every electrical concept that is. When the engine is cold, it starts fine because the computer has placed it in "cold start mode", putting more fuel into the engine than normally would until Once the engine is warmed up, a temperature sending unit or temp sensor tells the computer to change to normal run mode. IF said temp sensor is faulty and is not telling the computer to make said change, it stays in cold start mode, still dumping excess fuel in the engine that is now not required, cause it's warmed up. Like keeping the choke closed on older vehicles. Now I think you can answer your own question, when this no start action is happening after warm up and it always starts fine when cold, what's the first thing you check ? Right, the unsuspected temp sensor. Change that and no more start problem. Have a wonderful day. Glad I could be of service.

Clean the temperature sensor wire connector.
Replace the temp sensor.
Check the condition of the sensor wire cut(s) or short onto the engine block.
Monitor the fan operation with the hood open during warm up (0-15 minutes.) It should ran after the engine coolant temp get above 195F +.

Try the WD-40 spray in intake of throttle body with air intake hose off, to see if it will kick at all, even for a second or 2. We need to confirm whether your losing fuel or spark when it dies. Ignition & fuel, can cause similar symptoms in this case.

umh,have you checked the cambelt/chain tension its a bit strange for two sensors to go down at the same time !! cranksensor would make it stop but normally on sequential injection if the camsensor fails the car will keep running untilll you stop it then refuse to start....

check your tail pipe for a "clog" engine not breathing correctly.