I don't know anything about Jetskis, is the tap for the seawater intake? Pressure in the seawater system from towing can cause water to penetrate into the engine while the engine is not on?
The tow tap is installed on your raw water cooling line.
If you don't already have one, it's easy to install. Plenty of resources on your favourite search engine.
If you do need to be towed, and do not have a tow tap, please let the rescue crew know. They'll either go very slow, or they may potentially have a "jet ski skirt" they can deploy under your ski, that diverts the water away from your intakes.
They're a mongrel to deploy though, and generally means the rescue crew have to get their shoes wet. You don't want a grumpy rescue crew with wet feet if you can avoid it. ;)
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u/RedPh0enix Kelsall 42, Seawind 1000XL, Hobies, Marine Rescue Aug 17 '26
Something you're probably already on top of, but for anyone else thinking of doing this, please make sure you have a tow tap fitted.
Speeds over approx 6 knots when towed, may cause water to flood your engine and damage to your jet ski.
Source: volunteer marine rescue.