Blown rectifier

Hi to the electrics gods out there
My rectifer recently died but not before cooking my battery, but strangely not blowing any bulbs. I ran a multimeter over the system and output from the alternator was not reaching the battery. Seemed to point to the rectifer so i have replaced it, On replacing the old rectifier I noticed that the cables from the alternator had got hot enought to melt the connectors together. I managed to seperate them and fit the new unit. Battery is now charging as it should and resistance across the alternator is within tolerances, my issue is this. The cables from the alternator are still getting hot, probably not hot enough to melt the cables, but enought to concern me on a long journey they might. Is this normal ? Bike is a 10 year old M900 ( that has only done 4K)

Thanks in anticipation

Clive