Hello! Bike rides, come home – Blub! – out. Checked everything: main safety. Well, new part with 30A straight in above the magnetic switch, runs, excellent. For safety reasons 30A fuses plugged in before the next ride. Ordinarily turned up, about 10 km driven – swollen! – fuse there. Ok. Not funny. Thought: Maybe thermal problem? New pure, a time maintained – bike rides. Fine. Speed limit 4000 observed, driven home. For safety reasons all cables, all connections e checked for errors, battery discharge, recharged – everything ok. Errors searched in forums. Read: Charge controller can tear fuse. OK. I try driving without charge controller (it gets quite hot …) and without consumer, properly warmed up and turned up – problem does not occur. Diagnosis: Charge controller has thermal problem. New ordered, lasts until it comes. Ok. A few days driven with speed limit – always so 10 km, then pause, then return. Everything is fine. Today ge So: Charge controller suspended, new fuse in, not maintained, immediately further without all consumers. No 100 meters further: fuse over again (500 meters I would have needed to reach the destination). Diagnosis: Charge controller was not the problem after all. Last fuse in, charge controller again attached, cooled down, driven home with speed limit 4000. Between it worked, bike is at home, and I have no idea how and where I made the mistake. Since the fault was without the charging controller, it can’t be the alternator either. The battery probably wasn’t, all the other consumers weren’t there, all the other fuses are ok – what can that be, which suddenly starts to eat more than 30A after a time, and goes again after a cooling break? Something else struck me: Shortly before the fuse goes, there’s a stuttering engine and rev counter playing crazy. Please help! Thank you! PS: Is the old GPZ, EX500A