Re: VRO what is it?
Newbie here, but I just went through this on a 40 hp Evinrude. If the oil line has a lot of air in it, you will need to squeeze the primer bulb lots of times to get the air purged. The service manual I bought for my engine said to squeeze it at least 50 times. Yeah, 50, like 5,0. It didn't take near that many squezzes to get a full flow of oil, though. Just don't think 5 or 10 will do it, cause it might take a lot more. I too, ran a 100:1 mix for the first two 6 gal tanks of fuel to insure the lubrication of the motor. The oil level doesn't go down very fast in the oil tank. The VRO will vary the ratio from 50 to 150 to one. That doesn't use a lot of oil. The marking of the oil tank works quite well.<br /><br />Charles