johnsugar

For anyone just finding this thread and new to the ECM issue like me, there are two avenues to fix it. See the thread on PlanetNautique. https://www.planetnautique.com/vb5/forum/nautique-topics/maintenance-technical-discussion/510361-hope-for-gt40-efi-ecu

Thank you Dan!

Old Thread, first post for me. 95' ski natuique gt40 transmission slipping bad suddenly. Found fluid very low. I have had a small leak at the back seal for a couple years. I have tightened bolts but it's to the point the seal will have to be replaced. Anyway, I refilled fluid and it still slips. It can take a few seconds to get into fwd or rvs but even after getting boat on plane at say 2000 rpm and then gassing it, it will slip. Sounds like new clutches needed. Anything else I should get done while it's out or any other tips? Fluid clean and I replaced it 25hrs ago. Cooling good. Thank you! John Winter Haven, FL