Originally Posted by Hightower
My Oil priming bulb is rock-ard. By my reconing if there is no air in the system then why would the primer bulb be soft?
Not the same for the fuel line and no the bulb does not stay rock hard.
I just had a few problems myself this weekend with fuel delivery on a 1998 Yamaha 115 2-stroke. Both lower carbs had partially blocked jets with dirt in the float chambers even with an inline filter. I replaced all my fuel lines, took appart completely the carbs and fuel pump. Also I found a hairline crack in my fuel filter that pulled in some air.
Now after everything was put back in place it started on a half turn and runs like a race horse.
I opted to not try and chase the problem but instead just go through the entire fuel system. In the end it took less time and pain than chasing the problems or guessing it.