Hello,
I am new to the forum, and wanted to post a question to confirm what I just did is correct. My motor, a 1998 25 HP long shaft, pull start, 2 stroke Mercury tiller was starting hard and not idling well, and it seemed like it was not getting enough fuel. I could run it wide open to my fishing spot, but once I got there and dropped it into neutral, it would stall within 15 seconds.
So when I got home, I got brave and started turning knobs trying to make adjustments to the motor such that it starts and idles better. This is the process that I took, and I was hoping for some feedback as to whether this is correct or not. I just wanted some reassurance that I did not do something catastrophic, or that what I did would cause the motor to run too rich/too lean, etc.
1. I rotated the "primer/choke" dial (the red arrow on the right of picture) counter-clockwise until it was all the way in the "off" position.
2. I then turned the brass screw clockwise (red arrow on the left) until the motor would start and idle well. By turning this clockwise, it looks like it gave the motor more fuel to the carb. I then took this brass screw back counter-clockwise until the motor idled at a low, but sustainable RPM.
When I did these steps, the motor starts great, idles great, and gives me the ability to increase the 'primer/choke' dial clockwise on cold starts. Does this make sense, and seem alright? Motor is running great now, but again, just making sure I did not do something bad. The main error of my ways is that I did not keep track of how much I moved the brass screw from where it was originally.
Any feedback greatly appreciated.
I am new to the forum, and wanted to post a question to confirm what I just did is correct. My motor, a 1998 25 HP long shaft, pull start, 2 stroke Mercury tiller was starting hard and not idling well, and it seemed like it was not getting enough fuel. I could run it wide open to my fishing spot, but once I got there and dropped it into neutral, it would stall within 15 seconds.
So when I got home, I got brave and started turning knobs trying to make adjustments to the motor such that it starts and idles better. This is the process that I took, and I was hoping for some feedback as to whether this is correct or not. I just wanted some reassurance that I did not do something catastrophic, or that what I did would cause the motor to run too rich/too lean, etc.
1. I rotated the "primer/choke" dial (the red arrow on the right of picture) counter-clockwise until it was all the way in the "off" position.
2. I then turned the brass screw clockwise (red arrow on the left) until the motor would start and idle well. By turning this clockwise, it looks like it gave the motor more fuel to the carb. I then took this brass screw back counter-clockwise until the motor idled at a low, but sustainable RPM.
When I did these steps, the motor starts great, idles great, and gives me the ability to increase the 'primer/choke' dial clockwise on cold starts. Does this make sense, and seem alright? Motor is running great now, but again, just making sure I did not do something bad. The main error of my ways is that I did not keep track of how much I moved the brass screw from where it was originally.
Any feedback greatly appreciated.
