1994 Johnson Venom 200hp
Symptoms:
Puddle of oil drips from cowling down the shaft and settles on the floor a day after use
Excessive smoke especially at initial warmup idle, but generally excessive smoke all the time
WOT RPM under 5k
Will die out occasionally at idle and almost always when loading the boat on the trailer after letting off throttle
Sluggish holeshot and takes increasingly longer to get to WOT
Always runs and have never died out or surged at WOT. Just idles a bit rough. Boat is on the water at least once a week 9 months out of the year, but typically on no wake lakes.
The oil puddle: I have been dealing with this issue for the last couple years and had a mech tell me possibly have to replace all fuel/vaccuum lines under the cowling, and I would replace all lines from fuel and oil tank while I am at it too (lines before the motor are for sure due to be replaced). I have seen a seep (very small glisten) of oil from all or most of the vaccuum hoses all over the motor and assume this is where my puddle comes from.
It is my understanding that air getting into compromised fuel lines will cause my VRO to see the air as fuel and way over-oil my fuel. I am for-sure going to replace fuel lines between tanks and motor as they are getting weathered.
Questions:
Do I simply replace the lines leading up to the motor and see if that remedies the situation?
Do I do the above AND replace all vaccuum lines?
Do I replace the lines to the motor and test the vaccuum lines? and if so, how?
I considered servicing the carbs along with the above, but I kinda think (hope?) fixing the fuel lines will make that unnecessary
Thanks for looking.
Tim
Symptoms:
Puddle of oil drips from cowling down the shaft and settles on the floor a day after use
Excessive smoke especially at initial warmup idle, but generally excessive smoke all the time
WOT RPM under 5k
Will die out occasionally at idle and almost always when loading the boat on the trailer after letting off throttle
Sluggish holeshot and takes increasingly longer to get to WOT
Always runs and have never died out or surged at WOT. Just idles a bit rough. Boat is on the water at least once a week 9 months out of the year, but typically on no wake lakes.
The oil puddle: I have been dealing with this issue for the last couple years and had a mech tell me possibly have to replace all fuel/vaccuum lines under the cowling, and I would replace all lines from fuel and oil tank while I am at it too (lines before the motor are for sure due to be replaced). I have seen a seep (very small glisten) of oil from all or most of the vaccuum hoses all over the motor and assume this is where my puddle comes from.
It is my understanding that air getting into compromised fuel lines will cause my VRO to see the air as fuel and way over-oil my fuel. I am for-sure going to replace fuel lines between tanks and motor as they are getting weathered.
Questions:
Do I simply replace the lines leading up to the motor and see if that remedies the situation?
Do I do the above AND replace all vaccuum lines?
Do I replace the lines to the motor and test the vaccuum lines? and if so, how?
I considered servicing the carbs along with the above, but I kinda think (hope?) fixing the fuel lines will make that unnecessary
Thanks for looking.
Tim