Just look around for any years size they are all the same
The spark plug gap for all years/models of Yamaha PW80 and BW80 is 0.024" and NGK part number is BP6HS. NGK plugs come "pregapped" but it's always a good idea to double check before you install any plug, old or new.
2004... the tenth digit tells you what year it is... there is a chart here http://forums.atvconnection.com/yamaha/315326-how-determine-model-year-yamaha-warrior-350cc.html
2002
It is very hard to pull off a wheelie on a pw80 seeing as they hav not much power u can do them in first gear but any faster gear u wont keep the bike up.
Kawasaki Kx500, any year will do, but the best bike for a beginner is a Yamaha yz490
Any 4-stroke 10W-30 motorcycle oil can be used in clutch case.
Yamaha dealerships can assist with any questions relating to a bike. The company can let a person know how to find out the year and model of a bike owned. The dealership usually assist with any repairs as well.
Any website about tanks, usually has photographs.
tanks,worms
In 1944, the Soviet Union produced more tanks then any other nation. 29,000 tanks were produced in 1944 and Germany was a distant second with 17,800 tanks produced in that year.
I don't think there really is any cheats for tanks. You just have to be skillfull. Sorry!