noticed oil leaking down lower unit from under cowl up near air silincer.cut small gray hose on lower port side of silincer n zip tied it.still seems to be leaking.any tips as to what else would cause leak appreciated ?
noticed oil leaking down lower unit from under cowl up near air silincer.cut small gray hose on lower port side of silincer n zip tied it.still seems to be leaking.any tips as to what else would cause leak appreciated ?
Make sure the fluid is just oil and not oil/gas mixture. If just oil, the VST plumbing is eliminated. If it is premixed oil/gas, the float and or needle valve in the VST is bad. That causes the VST to overfill. The overflow goes into the silencer.
See if oil leaks all the time or after the motor has been tilted all the way up for a while.Those tanks have a tendency to leak out of the sensor cover.
Check main oil tank on motor to make sure it has not overfilled.
Finally, you need to check all the plumbing (hoses) that connect the oil pump as well as see if the pump itself is leaking. If the pump seal leaks, oil usually flows out the exhaust and not the cowling.
thank you for response.tank underhood is filled between the fill lines,seems fine.whats the cure for leak at sensor cover ?is it ok to run motor untill this is resolved ?
thank you for response.tank underhood is filled between the fill lines,seems fine.whats the cure for leak at sensor cover ?is it ok to run motor untill this is resolved ?
The sensor cover is often difficult to seal but I have had success just cleaning the inside of the 'cover' and making sure it is seated correctly. Other folks have added a tie wrap around the cover to help seal it.
The interesting thing about leaks from the sensor cover is that the oil often leaks into the lower motor housing when the motor is tilted up but doesn't leak down the shaft until the motor is lowered.
