Hello we just inherited a 68 eska 3.5 HP out board model number 217 59860. Its been sitting for about 20 plus years. Before storage all fuel was drained, we put fresh fuel mixed at 16.1 it fired up after about 12 pulls. we let it run for about 10 or 15 seconds and shut it off. My question is i cant see a place to add or check the motor oil. Also its air cooled so im assuming it doesn't have a water pump. We are also looking for an owners Manuel. Thanks in advance