This is my first post but I've been gathering some great info from here for awhile now. You guys sure know your stuff. Anyways the motor is a 99 Johnson 90 hp with the oil injection system and it has become hard to start, smokes and idles rough (dies usually) after start up. If it doesn't die and I give it alot of throttle the smoking will quit and it runs fine until shutoff then it starts doing the same thing again. From what I've read on here it sounds like a VRO pump problem but how do you determine if it's the fuel or oil part thats the problem? Would the fuel or oil line primer bulb loseing prime tell which part was bad? It smokes so bad that you can't work on it while it's running. I use the correct start up procedure so that's not the problem. Any ideas or suggestions would help.<br /><br />Thanks