Hi - Used 70hp Nissan, 1990. Ran fine first two trips out. Now will not run above 1/3 throttle. Have replaced in-line water separator, cleaned fuel bowl, and cleaned fuel strainer. Also replaced the plugs. Still doing the same thing.
I am not a mechanic but can take thing apart and put them back together. There is a rod with a ss piston surrounded with a wire core on the starboard side of the motor...... it appears to open the carb ports for more air (?) when the throttle is advanced. When I observed this mechanism yesterday on the ocean, it did not move when I increased the fuel. When the motor started acting up, I thought it was being starved of fuel....... now I'm thinking it might not be getting the air mixture it needs for the increased fuel supply????? Also, what do you call that piston/wire core assy??
Anybody out there have a thought? Model is NS70A2 ..... 1990.
Thanks for any ideas!! Steve in Maine
I am not a mechanic but can take thing apart and put them back together. There is a rod with a ss piston surrounded with a wire core on the starboard side of the motor...... it appears to open the carb ports for more air (?) when the throttle is advanced. When I observed this mechanism yesterday on the ocean, it did not move when I increased the fuel. When the motor started acting up, I thought it was being starved of fuel....... now I'm thinking it might not be getting the air mixture it needs for the increased fuel supply????? Also, what do you call that piston/wire core assy??
Anybody out there have a thought? Model is NS70A2 ..... 1990.
Thanks for any ideas!! Steve in Maine