Anythingcanhappen
New member
Hey guys and girls. I recently picked up a boat with a 175hp 2 stroke Mercury Racing oil injected motor. (oil injection is disconnected and oil is just mixed in the gas) I have no Idea what year (older) as it doesnt have a serial number sticker. (motor was repainted at one point). I am a gear head but I am a noob when it comes to outboards
First things first. Any where else where I can check to find the serial number stamped?
Next. I got it running great out of the water with a garden hose hooked up to it. Went to put it in the water and went for a nice ride. Motor wont go wot. Without the motor running you can floor it and the throttle linkage all moves and opens the throttle blades up all the way. In the water when you floor it it doesnt seem like it wants to open up. What could be going on here?
Next. How do I hook a tac up to it as I have no idea what rpm the motor is running? The boat has a tac but I dont see any wires from the tac going to the motor. Where do I hook it up at the motor?
After going for a ride when the motor heats up at low rpm / speeds it runs a little rough. I was planning to change all the plugs to see if that helps (has surface plugs in it) any other ideas here?
Thanks for all the help. I will post some pics tomorrow!
First things first. Any where else where I can check to find the serial number stamped?
Next. I got it running great out of the water with a garden hose hooked up to it. Went to put it in the water and went for a nice ride. Motor wont go wot. Without the motor running you can floor it and the throttle linkage all moves and opens the throttle blades up all the way. In the water when you floor it it doesnt seem like it wants to open up. What could be going on here?
Next. How do I hook a tac up to it as I have no idea what rpm the motor is running? The boat has a tac but I dont see any wires from the tac going to the motor. Where do I hook it up at the motor?
After going for a ride when the motor heats up at low rpm / speeds it runs a little rough. I was planning to change all the plugs to see if that helps (has surface plugs in it) any other ideas here?
Thanks for all the help. I will post some pics tomorrow!