2013 Te310 help

Hey all need a bit of help.
My 2013 TE 310 was running fine etc then in the bush just stopped and had to tow it back to the car. We couldn’t roll start or kick it (electric start is stuffed seems to go at the same time as the electric start)the speedo no longer works either? The kph and miles just flashes on the Speedo. When we tried to roll start it just sounded like fart . I did install a new battery around Easter as well and tried running a bigger negative wire to see if it would fix the speedo issue. It’s at the mechanics now and see if they can find the issues. Only has about 2000ks on it as well. Any advice ideas would be great and I hope this makes sense

My 2011 te310 had the wires from the stator to rectifier melt in side the the connector up near the left side of the head. This shut down the charging system and bike would not restart with out enough battery voltage.