Hi Guys
I was driving over the weekend back home from my work when yellow diode start flashing and bike died. I could not start it again so I was guessing that my battery is flat therefore battery was not charging when I was riding. Recovery service confirms that. They started up the bike with cables but when they checked charging more revs seems to drain battery. I have refused to be transfer to the bike shop by fear of hefty charge for fixing electrical problem and I’m glad that I did that.
First thing I have checked was rectifier and I have found all connectors completely rusty, female connector inner casing half melted together with insulation on two cables. I have also checked alternator and it was working properly.
So I cut all old connectors off, and attached new wires 10cm with block terminals for easier manipulation and attached new connectors. Next I have cleaned rusty connectors on rectifier and decide to give it try and to my surprise rectifier was fully working!
I have insulated properly everything now I’m on the test mode checking if there will be any more problems but so far it is working like charm.
I will upload some pictures soon too potentially to help anyone who may have similar issue.
This is the cause of the problem according to me...
1. Water
Female 5 connector (on wires coming from bike) contain 5 cables which go into connector holes. Each hole have rubber plug around the cable to prevent water to enter the connector.
Problem is that rubber plugs are quite down in the connector and creating kind of pool because connector is not upside down and water can stands stay there eventually get in. Water must have go this way there is no other way how it get in other way as connectors are very tight sealed to each other when you put them together.

2. Heat
Connector area gets very hot. It gets feed from engine and also from current in rectifier damaging seals in time. Two of the rubber plugs around cables were damaged by heat allowing water to enter. When putting insulation keep it in mind. Do not use normal tape or whatever use heat resistant materials otherwise your bike will stink


3. Connection
My problem was actually caused by loose connector in the melted connector.


This is about 45 min of work, and � 12 for cable, terminal blocks and wire connectors and you also need multimeter. I wonder how much I would pay if I leave it in bike shop.