Hard Starting

[Joker2]

Hey guys I recently got rid of my VRO tank and went to mixing oil into the gas. Everything is fine except when I go to use the boat after e few days to a week of not using it, it is hard to start the first time. It takes about 10-15 cranks to get it going, when it starts there is a fair amount of smoke initially. after that she runs and starts fine all day ( no smoke ). I never had this problem with the VRO hooked up. is this normal ?