Electrical Problem, lights etc not working, engine ticks over tho

For your bike you should use 15w 40 oil. Buy some better known mark oil.

harness issue?i was an electrical sysems troubleshooter on planes.do any other switches do anything crazy?

Not always necessary to change the regulator/rectifier. Check all connections to make sure they are clean, use a good contact cleaner and finish off with dielectric grease on your electrical connections.
When some bikes get a few years on them the connections get dirty. Check to see if there are any burned or discolored wires anywhere around the regulator. The FIX on some bikes is to cut the connector completely out and solder the wires together and either seal them with heat shrink of a good electrical tape. Loose or bad connections get hot. As long as the regulator and rectifier are working there is no need to replace them if the connections are good.
Ride Safely, Ed

your best try is to contact your dealer, and get them to order you the short red wire that runs from the + terminal on the battery, to the starter soleniod ( also has a thin red wire that runs to fuse holder) i had exactly the same problem and this solved it. i have however re done all the electrical connections on my bike using 7amp wire and bullet connectors, as i have had many faults with the electrics before.
My bike is a Kymco Cruiser 125 (almost exactly the same bike, i use kymco zing parts when replacing) i paid approx £16 GBP for the wire.

the problem may be that there is not anuf power in the battery or the starter motor is on its way out