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Model VX225TLRB (2003) with 590 hours on it. It has the original sensor which I have cleaned numerous times (with Yamaha combustion chamber cleaner). Tested the sensor with the test harness two months ago and it was within specs although the voltage at idle was a little high. Perhaps...
This problem cropped up 3-4 years ago and I thought it was related to fuel pump diapragms leaking, but now I'm not sure. The last time this happened I checked the pumps and they were fine. The motor usually starts with the touch of the key, and always starts right off the trailer with the...
Reading through past posts I see this is recommended along with the VST Screen, but when I look at the schematics I don't even see a screen (filter) on the injectors. I have done the VST in the past (easy). I see the Pressure Regulator screen. This can be replaced for about 5$. I'm guessing...
I have a 2003 Ox66 yamaha 3.1 225 with 350 hours. I have gone through 6 mechanical fuel pumps in the last 100 hours (changed all three twice) and now today I find I have one leaking again (the middle one). The other two are fine. I am wondering what is causing this? I have heard the...
