FreeBeeTony
Captain
- Joined
- May 15, 2002
- Messages
- 3,991
Recently installed a pair of new to me '05 175 Evinrudes.
Launched boat, started engines w/ no problems, idled @ 650RPM after warm-up.
Backed away from the ramp and was impressed with how well the engines idled and spun the boat when the engines were shifted in opposite directions.
After underway in a no wake zone @ ~ 1000 RPM the port engine started to fluctuate in RPM (1000-1500RPM), seemed to smoke a bit also, thought because it was the 1st run w/ a load?
After exiting the no wake zone, I attempted to throttle up, and the port engine would not go above ~2500RPM, seemed like it wanted to but couldn't.
No lights/horns or anything.
Got to the slip, set the lines and left.
Was just thinking maybe I could have tried pumping the bulb?
Looking for some suggestions........hoping it's something stupid.
The stb engine seemed to run great!
Checked static and dynamic tests w/ Diag Software, seems to react accordingly.
Checked the TPS Sensor, 0.40V @ Idle position, ~4.0V at WOT (using Diag Software, engine not running)
Hearing it could possibly be the Lift Pump...Tested and is steady @ 7PSI when problem is present.
Thinking it may be the high pressure pump but it doesn't have the Schrader Valve.
Any/all suggestions welcome.
Launched boat, started engines w/ no problems, idled @ 650RPM after warm-up.
Backed away from the ramp and was impressed with how well the engines idled and spun the boat when the engines were shifted in opposite directions.
After underway in a no wake zone @ ~ 1000 RPM the port engine started to fluctuate in RPM (1000-1500RPM), seemed to smoke a bit also, thought because it was the 1st run w/ a load?
After exiting the no wake zone, I attempted to throttle up, and the port engine would not go above ~2500RPM, seemed like it wanted to but couldn't.
No lights/horns or anything.
Got to the slip, set the lines and left.
Was just thinking maybe I could have tried pumping the bulb?
Looking for some suggestions........hoping it's something stupid.
The stb engine seemed to run great!
Checked static and dynamic tests w/ Diag Software, seems to react accordingly.
Checked the TPS Sensor, 0.40V @ Idle position, ~4.0V at WOT (using Diag Software, engine not running)
Hearing it could possibly be the Lift Pump...Tested and is steady @ 7PSI when problem is present.
Thinking it may be the high pressure pump but it doesn't have the Schrader Valve.
Any/all suggestions welcome.