Username Invalid
Member
Boat - 2006 Sea Doo Speedster 200 Wake.
I’ve been fighting this issue for too long and I’m frustrated and out of ideas. What I’m experiencing is the Port side motor not firing up after the engine is warm. Starboard fires up with no issues whatsoever. Initially, it was limited to only when the boat was on the water. Now, it won’t start on the trailer after it’s warm. It cranks and sometimes stumbles as if it’s about the start, but doesn’t end up turning over. My temporary fix is when it’s stumbling to start (so I can get some use out of the boat for the year) is to throw it into gear really fast and hit the accelerator. This takes about 5-7 tries, but it eventually gets it going. This prompted me to have someone else start the boat while I open the throttle body by hand and it starts right away. So, I’m thinking an air issue.
What I’ve done to attempt to fix it:
I swapped the following from my starboard motor with no change to either motor:
Idle bypass valve / idle air control valve
Throttle position sensor
Throttle body
MAP Sensor
Completed:
Compression Test - 145, 142, 134 (better than starboard compression at 143, 140, 134)
Fuel Pressure Test - 46-48 psi. (on a new aftermarket fuel pump)
Replaced:
Fuel pump
Fuel filter
Fuel Pressure Regulator
Rectifier
Spark Plugs (gapped)
Coil Packs
Spark Plug Tubes
Stator
Crankshaft Position Sensor
Camshaft Position Sensor
Rebuilt Injectors and swapped injectors with starboard injectors
Starter
Starter Relay
Added 4gauge ground wire directly to battery
Gutted TOPS Valve
I plan on doing a leak down test and swapping the engine harnesses, but after that, I’m fresh out of ideas. I feel like I’m onto something with the throttle body/air intake, but I really don’t know for sure. I can’t take it anywhere to be fixed because no Sea Doo dealerships will touch boats in my area, so it is on me to resolve it. So, any help someone can offer is greatly appreciated.
I’ve been fighting this issue for too long and I’m frustrated and out of ideas. What I’m experiencing is the Port side motor not firing up after the engine is warm. Starboard fires up with no issues whatsoever. Initially, it was limited to only when the boat was on the water. Now, it won’t start on the trailer after it’s warm. It cranks and sometimes stumbles as if it’s about the start, but doesn’t end up turning over. My temporary fix is when it’s stumbling to start (so I can get some use out of the boat for the year) is to throw it into gear really fast and hit the accelerator. This takes about 5-7 tries, but it eventually gets it going. This prompted me to have someone else start the boat while I open the throttle body by hand and it starts right away. So, I’m thinking an air issue.
What I’ve done to attempt to fix it:
I swapped the following from my starboard motor with no change to either motor:
Idle bypass valve / idle air control valve
Throttle position sensor
Throttle body
MAP Sensor
Completed:
Compression Test - 145, 142, 134 (better than starboard compression at 143, 140, 134)
Fuel Pressure Test - 46-48 psi. (on a new aftermarket fuel pump)
Replaced:
Fuel pump
Fuel filter
Fuel Pressure Regulator
Rectifier
Spark Plugs (gapped)
Coil Packs
Spark Plug Tubes
Stator
Crankshaft Position Sensor
Camshaft Position Sensor
Rebuilt Injectors and swapped injectors with starboard injectors
Starter
Starter Relay
Added 4gauge ground wire directly to battery
Gutted TOPS Valve
I plan on doing a leak down test and swapping the engine harnesses, but after that, I’m fresh out of ideas. I feel like I’m onto something with the throttle body/air intake, but I really don’t know for sure. I can’t take it anywhere to be fixed because no Sea Doo dealerships will touch boats in my area, so it is on me to resolve it. So, any help someone can offer is greatly appreciated.
