Guides: Winterize

Guides to storing, trailering and caring for a jet ski, plus help choosing the right cover size.

  • Jet ski on a trailer in a frosty driveway under a blue and black AllGuard Weatherproof Shield cover

    Winterizing 18 min read

    How to Winterize a Jet Ski: Step-by-Step Guide

    Winterize a jet ski in 8 steps: treat the fuel, flush and drain, change the oil, fog, pull the battery and cover it, plus what Sea-Doo, Yamaha and Kawasaki say on antifreeze.

  • Jet ski on a galvanized trailer in a snowy fenced yard under a gray and black AllGuard Weatherproof Shield cover

    Winterizing 24 min read

    How to Winterize a Sea-Doo (Spark, GTI, GTX and More)

    Winterize a Sea-Doo in the order BRP's 2026 guides set: jet pump, fuel, flush, oil, exhaust drain, fogging, battery, bilge. Plus Spark notes and the 2003 GTX.

  • Jet ski on a trailer in a snowy backyard under a gray and black AllGuard Weatherproof Shield cover

    Winterizing 25 min read

    How to Winterize a Kawasaki Jet Ski (Ultra, STX)

    Kawasaki's manuals drain the fuel tank for storage. Here are the STX 160 steps, the Ultra 310 supercharger extras, the older 900 and 1100 two-strokes, and how to cover it.

  • Jet ski on a trailer beside a snowy garage under a red and black AllGuard Weatherproof Shield cover

    Storage 16 min read

    Jet Ski Winter Storage: Where to Keep It

    Where to keep a jet ski over winter: garage, storage unit, marina, outdoors on the trailer or on a lift. The trade-offs, the facility rules, and how to beat mold, mice and theft.

  • Jet ski on its trailer in a snowy fenced storage yard, under a red and black AllGuard Weatherproof Shield cover

    Winterizing 20 min read

    How Much Does It Cost to Winterize a Jet Ski?

    Dated prices from named dealers and shops for winterizing a jet ski: DIY supplies, basic and full service, storage packages and add-ons, plus what the listings include.

  • Jet ski on its trailer in a gravel side yard in late autumn, under a blue and black AllGuard Weatherproof Shield cover

    Winter storage 22 min read

    Jet Ski Cover vs Shrink Wrap vs Tarp for Winter

    Cover, shrink wrap or tarp for winter? A sourced side-by-side on reuse, venting, access, setup and disposal, Dr. Shrink's wrapping steps, tarp sizing and dated shrink-wrap prices.

  • Jet ski on a trailer under a blue and black AllGuard Weatherproof Shield cover on a frosty morning, with palm trees behind

    Winterizing 15 min read

    Do You Have to Winterize a Jet Ski?

    Most jet skis need winterizing before a layoff of a month or more, even in warm states. What skipping it risks, when to do it, and what to do if you forgot.

  • Jet ski on a trailer beside a snowy lake under a yellow and black AllGuard Weatherproof Shield cover

    Winterizing 21 min read

    How to Winterize a Yamaha WaveRunner

    Winterize a Yamaha WaveRunner the way Yamaha says: stabilize the fuel, flush, change the oil, fog or book a dealer, store the battery, then cover it. Plus model notes.

  • Jet ski on its trailer in a sunny spring driveway under a red and black AllGuard Weatherproof Shield cover

    Winterizing 28 min read

    How to De-Winterize a Jet Ski for Summer

    De-winterize a jet ski in spring: charge and refit the battery, check fluids, fuel and plugs, flush and start within each maker's limit, then check the hull and trailer.