on the right side of engine below oil filter there is a black cover with 2 8mm bolts . remove these bolts and cover and you,ll find the neutral and reverse switches .
21 Horsepower.
Yes, switch the transfer case to neutral.
10w-30
yes
bad CDI
you have to take out the carburetor and then clean it
2.7 quarts
It takes 24x9.00-11
Simple answer is to buy a workshop repair manual
Honda fourtrax 350
take it off and have it checked
into a form of containment unit