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  1. #1
    Slxrider's Avatar
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    19 gp 1800r oil leak?

    Has anyone had oil sitting on the bottom of the Hull in front of the supercharger? I took mine out yesterday and upon washing it seems to oil on the bottom of the Hull. Ski was built in October from the factory if it matters. I know the early engines had oil cooler issues but not sure if they still do


  2. #2
    Bernies10's Avatar
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    Sorry to be that guy but are you sure it was oil? Is the dipstick showing loss of oil after use? 17's and onwards had the better oil cooler.

  3. #3
    MSX 150 guy lives on Mr. GP1800's Avatar
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    Are you running the stock air box or the riva power filter?

  4. #4
    MSX 150 guy lives on Mr. GP1800's Avatar
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    I had that issue with mine. I was running the riva power filter with the crankcase vent hose connected to the power filter tube. I had oil in the bottom of the hull. It seemed like what you are describing. I pulled the power filter tube off the supercharger and there was oil in the tube and it was dripping down from where the tube connects to the supercharger. I have since installed a catch can and the problem went away and the catch can is bone dry. I bet that’s what is going on here

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  6. #5
    Slxrider's Avatar
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    I made my own cold air intake filter above gas tank. Crank case vented to Yamaha engine cover bracket by cylinder 3 in exhaust side. Ski has 1 hour on it so far. I’ll double check to confirm it’s oil hit the color makes it seem like it is

  7. #6
    If you pulled the oil pump off like say for a broken clutch, the O rings on the tube are easily damaged. Very soft material and I had damaged mine when I put Deans clutch in.

  8. #7
    Rook87's Avatar
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    Mine will spit out the crank case filter..

  9. #8
    Saum700p's Avatar
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    I'd say clean it and run it again. Make sure the 6 supercharger bolts are down tight and it not coming from the mating flange or coming out the breather and just running forward under the motor. I installed a catch can like ole Tom above and plumbed mine not the inlet. Possible it was from the initial fill at the dealer?

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