YES yes and yes to everything above, Your best bet is to clean out real good
DONT even hook up the fuel lines, Get the sparkplug clean, tight, and gap'd Make sure your kill switch is DISCONNECTED, Tape the end of the white wire, then spray some starting fluid in The carb and try to start it if you hear even 1 or 2 pops then your ignition and compression are good for sure, then check your fuel mixture (when making new gas) Fill the tank, open the valve and see if gas Pours onto the ground, If yes then add your fuel line and other filter and turn gas back on again and check for flow, if yes then connect to carb. Turn on gas, press the Tickle button a couple of times and try to start the bike, While tinkering with the Choke from FULL ON (TOP) to half , to FULL OFF (bottom) if choke doesnt help it start remove the air filter and try again... If still no luck Check and make sure when you move the choke lever that the little "(0)==" moves around, Then try again......
If it still doesnt start.... You did remove the kill switch right?