Need help on blaster engine

[Oscar]

So I bought this 2000 yamaha blaster the guy said they ran it with just straight fuel he said they never seen the oil container under the seat so before so what can it really be or what do I need to fix ?

 

[BlasterOwner420]

what's the problem ?

 

[Slydog]

So I bought this 2000 yamaha blaster the guy said they ran it with just straight fuel he said they never seen the oil container under the seat so before so what can it really be or what do I need to fix ?

Is there oil in the oil tank under the seat?
Like mentioned above. What is the problem?
Runs,don't run?smoking?