Re: Oil primer question 1999 150 Johnson
Mine is like that too, I think its the nature of oil , I removed the line from the engine and put big pliers on the bulb, it loosened up again but its still not as soft as the fuel bulb.
When you install the oil line, purge it until oil starts coming out the end of the tube, then push it on the fitting, secure with clamp.
BTW, you have to PUSH the line off the fitting at the engine, don't pull it.
Have you checked the engine out before the first splash, I would make sure everything is oky doky before taking it out.