Your spare was designed for a “modified” 170 which I guess means it’s putting out more than stock HP. How much more than stock they don’t say.
Impellers/props are tricky. That’s why “modified” planes have variable pitch propellers. More hp the more variable helps. My guess is you won’t be able...
You need to isolate the bad wire and then find where it’s corroded or broken. With the ski not working disconnect the wiring bundle from the ECM and the connector of the B wiring harness. Then check continuity with a volt meter of each individual wire. The bad wire/wires will show open. Then you...
Aftermarket maybe a power plug, not a proper install whatever it powers, probably why the ground is disconnected. I would leave it disconnected, find what it is powering and do a proper install.
Batteries are fickle to say the least, the ECM is all about the right voltage and the starter is more about having enuf amperage. Take your battery out of the ski and have it load tested at a battery store especially if it’s more than a couple years old. If the battery checks out okay I would...
12.3 volts is only 50% state of charge for a 12v sealed lead acid battery, take your battery out of the ski and have it load tested at a battery store.
I think you are right the cap was left loose intentionally to keep the coolant system from overflowing from over pressure in the system. Especially since the boat was just sold. Aren’t sellers grand. There are like 12 reasons why coolant can overflow out of the reservoir. Google it.
The pinholes aspirate the open loop water to cool the exhaust gases cooling the muffler and exhaust piping, the temperature sensor is mounted on the muffler. The faster you go the more open water pressure to the pin holes. If they are clogged at all it means less cooling higher temps probably...
Make sure the connected blue tooth device audio is selected to the Seadoo audio system. On a iPhone there is a small speaker symbol in General Controls, not sure for a Android.
Chapter 3 for the flow diagram and chapter 9 for wiring diagrams in the shop manual. Shop manuals for the newer skis are pirated only downloads on EBay. BRP also manufactures airplanes so a lot of trickle down technologies and terminology.
Also, battery, battery, battery. Take it out of the ski and have it load tested at your local auto parts store. Don’t just rely on battery voltage. You have to be sure you have a good battery when troubleshooting anything electrical on your ski.
You have an electrical issue in the start circuit, download a service manual and start reading. There are wiring diagrams in the back to help with the troubleshooting. Pretty common problems especially around salt water and as the ski gets older.
Sounds like it didn’t shut down completely after your last start. Maybe the start/stop switch is not giving the proper stop signal to the ECM or the ECM is getting it and not shutting the ski down. Something in the start circuit is stuck closed.
Jumping is a no no in a Seadoo it will fry your ECM’s. If you have a bad cell in your battery a jumper won’t help. Take your battery out and get it load tested and hope you didn’t fry anything.
My service manual says to blow the exhaust cooling system out with compressed air maximum 55 psi to winterize, but it takes a pretty substantial compressor to get the proper CFM which I don’t have at the cabin so just transfer pump a gallon of RV antifreeze thru the system instead. The service...
Absolutely without the siphon tubes pump pressure will force water past the orings thru the tubes into the bilge. There is also a fitting at the top of your zip tied tubes that has a small hole that if it gets clogged will backflow the water into the bilge.