Symptoms
- Nothing happens when pressing the start button
- Engine cranks but won't fire
- Ran fine last season but won't start now after storage
Likely causes
- CommonSafety lanyard clip not attachedMost PWCs won't start or will immediately shut off without the lanyard clip properly in place.
- CommonDead or weak batteryPWC batteries are small and drain easily, especially after a season of storage without maintenance.
- CommonStale fuel after storageEthanol fuel sitting over winter is a very common cause of hard starting or rough running on PWCs.
- PossibleEngine cut-off/safety switch issueSome models have additional safety interlocks that can prevent starting if not properly reset or engaged.
What to do
- Confirm the safety lanyard is properly clipped in place at the start switch.
- Check the battery; charge or jump it if it seems weak, and clean any corrosion off the terminals.
- If the PWC sat all winter without fuel stabilizer, consider draining old fuel and replacing it with fresh fuel.
- Check for any specific safety switches or interlocks on your model (consult the owner's manual) that might need to be reset.
- Listen to how the engine cranks; slow, labored cranking points to the battery, while a healthy crank with no firing points more toward fuel or ignition.
- If basic checks don't resolve it, especially after a long storage period, a marine/PWC mechanic can service the fuel system and check ignition components.
Tools and parts
- Basic hand tools
- Battery charger
Fresh fuel and stabilizer for future storageSearch: “fuel stabilizer for personal watercraft”
When to call a pro
If the PWC still won't start after basic checks, especially coming out of storage, have a PWC-certified mechanic inspect the fuel system and ignition.
Safety
Use caution
Always keep the safety lanyard attached to the rider while operating, both for starting and for safety if the rider falls off.