Hello all. I am fairly new to this forum and would like to throw a question out to see if anyone has had the same problem. I have twin 115 Yams on my 2012 2360 Wac. The motor had 65 hrs on them when I got the boat and the issue was there then. My issue is this: My port motor kicks at certain RPM's usually 4000 or higher. The funny thing is that it does not happen all of the time. I can get it to WOT and keep it there for sometimes 1/2 a day then suddenly it starts to buck until I lower the RPM's down to 4000. It has gone on for a year now and I have chased it in many directions. I notice that sometimes my gauge on the dash will read 13.5-7 volts and the other motor always reads 14.4-6. The port motor, however, reads 14.4-6 volts as well at times seemingly with nothing wrong. I have been told it was a fuel problem and a dirty VST filter or injectors.
Here is what I have done so far:
1. Batteries
I have put a third battery and designated it to the house battery and now each motor also has a battery. I have also switched the batteries as well from motor to motor. Taken them out and had them inspected for charge and all good. I do have a VSR in the boat as well.
2. Filters
I have changed all of the filters on the boat and motors including cleaning the VST filter in the port motor.
3. Change of components from one motor to another
I have switched the wires, coils and plugs from motor to motor.
4. Injectors
I have taken out and cleaned the injectors from the port motor.
5. I have put a computer on it and no codes have shown up. (At idle speed)
When I bought the boat I noticed that the previous owner had taken the 3rd battery out and left me with a ground lead which lead me to believe he may have changed the wires around in the VSR. I do have a wire in the setup that I am not sure should be there. I have seen a few schematics on this particular setup and never seen this wire setup. Could it be a power issue causing this??
I have spent a lot of time on the net to solve this issue as well as looking up schematics for the VSR and now I am posting on here for some assistance. I would appreciate any feedback one can share.
Regards
John
Here is what I have done so far:
1. Batteries
I have put a third battery and designated it to the house battery and now each motor also has a battery. I have also switched the batteries as well from motor to motor. Taken them out and had them inspected for charge and all good. I do have a VSR in the boat as well.
2. Filters
I have changed all of the filters on the boat and motors including cleaning the VST filter in the port motor.
3. Change of components from one motor to another
I have switched the wires, coils and plugs from motor to motor.
4. Injectors
I have taken out and cleaned the injectors from the port motor.
5. I have put a computer on it and no codes have shown up. (At idle speed)
When I bought the boat I noticed that the previous owner had taken the 3rd battery out and left me with a ground lead which lead me to believe he may have changed the wires around in the VSR. I do have a wire in the setup that I am not sure should be there. I have seen a few schematics on this particular setup and never seen this wire setup. Could it be a power issue causing this??
I have spent a lot of time on the net to solve this issue as well as looking up schematics for the VSR and now I am posting on here for some assistance. I would appreciate any feedback one can share.
Regards
John