Sea-Doo engines are cooled by drawing in surrounding water, so anything that restricts that flow can push temperatures up quickly, sometimes without any obvious sign until the warning appears.
Common Causes
A clogged water intake grate, a failing water pump, debris in the cooling channels or a stuck thermostat are the most frequent reasons for overheating.
Confirm the Temperature Trend
The M-JET DIAGNOSTIC tool lets you watch coolant temperature live and check stored overheating codes, so you catch a developing problem before it becomes a shutdown.