Engine: Yamaha Vmax Two Stroke 200HP 6 cyl. - 2001 model year w/ 151 hours
I seem to have an intermittent issue with my the oil pressure gauge on the dash cluster. I do not think I have an actual oil pressure problem, but instead a gauge reading issue.
The gauge itself is electrical and deriving a voltage from the engine where there is likely a sensor. I can see a plastic line off the block which is typical of oil pressure gauges in cars, but I was not able to locate a 'sending unit'
The engine appears to be consuming oil at a normal pace & I can see exhaust at start up / normal operation. The engine reservoir on the motor remains full & is drawing oil from the reserve as it should. I've never had any sort of alarm / shutdown. The engine appears to be functioning perfectly in every way except for the PSI level on the oil gauge.
The correct oil pressure reading on the gauge should be around 5-10 psi at idle & 20-25 psi when on plane at higher rpm.
Right now the gauge is reading 0 psi at idle & about 10-15 psi at high rpm (so the gauge is now showing about 10 psi less than it should).
I've also noticed that every once in a great while the gauge will instantly jump to a 'normal level' for a very short instance (1-2 seconds), then go right back to it's 'inaccurate' state. For example, at idle I've seen it jump from 0 psi to the 'normal' 10 psi, but that happens very quickly....just ~1-2 seconds.
This all leads me to believe that I don't have a true oil injection pressure problem, but rather some sort of issue with the gauge not reading "true" pressure present in the engine. I have looked around the engine compartment. I can't see any signs of a problem. Whatever it is, it's difficult for me to diagnose without knowing what to look for / inspect / replace.
Before I cave in and visit a dealer on this matter, does anyone have any suggestions as to what may be causing this ? ...Or better yet, how I can diagnose / fix it on my own?
I seem to have an intermittent issue with my the oil pressure gauge on the dash cluster. I do not think I have an actual oil pressure problem, but instead a gauge reading issue.
The gauge itself is electrical and deriving a voltage from the engine where there is likely a sensor. I can see a plastic line off the block which is typical of oil pressure gauges in cars, but I was not able to locate a 'sending unit'
The engine appears to be consuming oil at a normal pace & I can see exhaust at start up / normal operation. The engine reservoir on the motor remains full & is drawing oil from the reserve as it should. I've never had any sort of alarm / shutdown. The engine appears to be functioning perfectly in every way except for the PSI level on the oil gauge.
The correct oil pressure reading on the gauge should be around 5-10 psi at idle & 20-25 psi when on plane at higher rpm.
Right now the gauge is reading 0 psi at idle & about 10-15 psi at high rpm (so the gauge is now showing about 10 psi less than it should).
I've also noticed that every once in a great while the gauge will instantly jump to a 'normal level' for a very short instance (1-2 seconds), then go right back to it's 'inaccurate' state. For example, at idle I've seen it jump from 0 psi to the 'normal' 10 psi, but that happens very quickly....just ~1-2 seconds.
This all leads me to believe that I don't have a true oil injection pressure problem, but rather some sort of issue with the gauge not reading "true" pressure present in the engine. I have looked around the engine compartment. I can't see any signs of a problem. Whatever it is, it's difficult for me to diagnose without knowing what to look for / inspect / replace.
Before I cave in and visit a dealer on this matter, does anyone have any suggestions as to what may be causing this ? ...Or better yet, how I can diagnose / fix it on my own?
