my initial thoughts are fuelling or ignition
Originally Posted by Englischdude
Decompression lever issue was on Chinese made/assembled singles, manufacturing/wear issue with decompression lever. Compression drop when hot Unlikely with KM 13000 mileage on yours , unless valve clearance minimal , closing further when hot, even at KM 20-25k rarely need reshimming .
float levels/needles, choke mechanism- been mentioned, sounds like rich mixture to start ok with no or minimal choke, may need adjusting, see FAQ's for full info ,
you say; " I know that the carbs were completely stripped down and professionally cleaned before I got the bike,"
I am wary of verbal or service history , would not be first time in my experience of cars & bikes what was said to have done hasn't . maybe worth a check float levels, crud in bowls, main jets, needle jets blocked or worn? If runs / starts better after fuel tap closed bit of a pointer.
Coil issue or plug lead corrosion Issues common with this model, especially when hot. Whilst you have a new battery (check terminals tight, vibrations loosens them, can cause this issue ) , suggest voltage check static & running, VR major issue with this model, causes all sorts of symptoms, should get about 13.6v max running, may exceed this briefly on start up. Again see FAQ's for detailed info.
2003 GS Dakar
BMW Panniers, top box, tank bag
+ loads TT stuff that came with it!