Help starting X-90

#1
I just purchased a HD X-90. I think the bike was 'pieced together'. It has an oil tank and is oil injected. What type of oil do I use? 2 stroke or regular oil?
The gas cap has SAE 40 oil imprinted on the cap. Do I mix the oil and gas?
Where is the 'kill switch'?
Thanks for all and any help.
 
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