monixxxxxx

I have an ongoing problem that Yamaha Dealer garage cannot even solve. It had the ignition coil changed, ignition switch as well. It starts perfectly every time but once the engine goes to 6000 rpm, it goes into limp mode and switches off few seconds after. They checked "all possible outcomes that Yamaha system suggests" and checked with different ECU and no luck. Anyone can help? It's Yamaha YBR 125 2007. Thank you!