I think I have turned to conor on the restore of my 300 ex 2x4. I was sure that it would nver run right but after
1) New Spark plugs
2) New Front Tires
3) New Front Light
4) Some STP gas treatment
5) A Shop manal
6)A New Air filter
7) A New Battery
8) New Fuel Filter

When I was given the ATV It was a basket case covered in Red East Texas Dirt with a flat and and 3 plugs in the other tire and no battery.

Well after a good cleaning with eagle one eteching wheel cleaner the ATV looked new. IT powered off the red dirt
well a new battery and draining the tank and fresh gas got it running. Changing the air filter was not to bad the fuel filter was kinda hard. the new spark plug was also easy. Well after that iit was still a bit hard to start and was running very rich and a would not iddle. WEll I added stp and ran it and it was a bit better and as I read I adjusted the carb and not one puch of the start button with no choke it starts GREAT
New purchase will be

1) rear tires AT489's
2) Front and rear brakes
3) New handlebar The oldes are Rusty