Hi there, I own a Yamaha Model #
ro 50LF. I'm currently experiencing 2 problems. <br /><br />This engine is equipped with oil injection. When I tilt the engine up for travel, oil seems to be leaking out of the front of the carbs, making a huge mess under the cowl and in the back of the boat. In addition, it appears as if too much oil is making its way into the engine. When I lower the tilt some oil drains out the exhaust (slow leaks). It seems to do these things worse when it sits for a while. I'm wondering if the oil valve (or whatever its called that lets oil into the hoses running to the carb) is blown causing too much oil to run through. <br /><br />Secondly, the engine stumbles when I give it full throttle, but after it bogs for a few seconds it will begin to hit it's power range and accelerate. Once at full throttle it doesn't bog at all. Just at intial throttle response. Does it sound like I need to adjust carb screws? If so, does anyone have a schematic to show high speed screws, or can someone please point me in the right direction.<br /><br />Thanks
ro 50LF. I'm currently experiencing 2 problems. <br /><br />This engine is equipped with oil injection. When I tilt the engine up for travel, oil seems to be leaking out of the front of the carbs, making a huge mess under the cowl and in the back of the boat. In addition, it appears as if too much oil is making its way into the engine. When I lower the tilt some oil drains out the exhaust (slow leaks). It seems to do these things worse when it sits for a while. I'm wondering if the oil valve (or whatever its called that lets oil into the hoses running to the carb) is blown causing too much oil to run through. <br /><br />Secondly, the engine stumbles when I give it full throttle, but after it bogs for a few seconds it will begin to hit it's power range and accelerate. Once at full throttle it doesn't bog at all. Just at intial throttle response. Does it sound like I need to adjust carb screws? If so, does anyone have a schematic to show high speed screws, or can someone please point me in the right direction.<br /><br />Thanks