2008 yamaha vk professional shop manual - Sport & Outdoor - Others

No too old

Follow your plug wires back to the coil and then change it.

I have the book but I cant find the codes.

So find out if your rad fan is coming on. If it does then pull out your thermostat and place it in a pot of water and see at what temp it opens at. The open temp should be stamped on the thermostat.

If it is stuck closed or opening to slow, replace stat.

Good luck!

There should be a dip stick on the chain case remove it and add oil there. until it is full on the shight glass.
Hope this helps.

What info would you like on the chain case?

Locate chain tension bolt.

Loosen locknut.

With 2 fingers tighten the lock bolt until it is tight.(not crazy tight)

Then back off the lock bolt 1/4 of a turn.

Hold bolt and tighten lock nut.

You are done now.

Good luck!