Sea-Doo repair without the runaround.

Marks PowerSports is a small, owner-operated shop focused on Sea-Doo repair, maintenance, diagnostics, and the BRP software work that leaves a lot of owners stuck.

Request Service Make An Account

A real shop for real Sea-Doo problems.

Most of my repair work is on Sea-Doo watercraft: maintenance, diagnostics, electrical issues, pump work, carbon seals, wear rings, engine problems, keys, and the weird faults that do not always show up until the ski is under load.

I also help with BRP diagnostic, software, and calibration jobs on other BRP products when the job fits the tools I have. I am not trying to be a full-service dealer for every BRP machine. The main focus here is Sea-Doo.

This shop came from actually working on these machines, not from a marketing template. If your ski needs honest troubleshooting, clear communication, and work done by the manual, that is the lane I stay in.

Sea-Doo first. BRP software support when it makes sense.

If you are not sure whether your machine or job fits, send the year, model, and what you need done. I will tell you straight if I can help.

Sea-Doo Engine Work

One of the jobs that built the shop

Abandoned Sea-Doo
Destroyed Engine Block Shattered Piston Chunk

What came in

This 2019 Sea-Doo GTI was dead and sitting in the dirt. Once the cylinder head came off, the problem was obvious: a shattered piston and a motor that needed real teardown work.

What it took

The engine came out, the block was cleaned and inspected, damaged parts were replaced, and everything went back together using the factory service information.

Why it matters

Not every machine makes sense to save. Some do. The goal is to find out honestly, fix what is worth fixing, and not guess with your money.

Rebuilt Sea-Doo GTI

Sea-Doo service that makes sense

Routine maintenance, repair work, and software support for owners who want a straight answer before they spend money.

Basic oil service

$85

Shell Rotella T6 Full Synthetic, filter, and o-rings included.

Premium oil service

$120

Liqui Moly Marine Jet Ski synthetic oil, filter, and o-rings.

OEM oil service

$140

Manufacturer XPS 4T OEM oil, OEM Filter & o-rings.

Sea-Doo horsepower unlocks

$150

Unlock compatible Sea-Doo Spark 60hp models to 90hp, and 2020-2025 Sea-Doo GTI 130 models to 170hp.

Software and calibration session

$85

For diagnostics, setup, calibrations, resets, active tests, and software functions after a repair.

Key scans and programming

$100 / $140

Aftermarket key / OEM key

$100 for an aftermarket key with programming. $140 for an OEM key with programming.

Carbon seal work

Parts & Labor Quoted

Wear ring replacement

Parts & Labor Quoted

Pump rebuilds

Parts & Labor Quoted

Gauge and LCD help

Starts at $150

Featured service

$85 software session

Diagnostics, calibrations, resets, active tests, programming support, and setup functions for compatible BRP systems.

Did the repair yourself and hit the software wall?

You replaced the part. The machine is back together. Then you find out it still needs a calibration, reset, key function, setup step, or diagnostic check before the job is actually finished.

That is exactly where this service helps. Instead of buying a $1200+ tool for one job, or waiting weeks for a dealer appointment, book a software and calibration session and get the missing step handled.

If the job needs more than software, I will say so. No mystery package. No pretending every machine is the same.

Book A Software Session

When the dealer path is not working

A lot of owners are capable of doing the mechanical work. The problem is the last step needs BRP software.

Older machine?

Some dealers will not take older units, even when the problem is simple and the owner already did the hard part.

Booked out?

If the schedule is weeks or months out, a small software job can turn into a lost season.

Tool too expensive?

Most owners do not need to buy an expensive diagnostic tool just to finish one calibration or setup step.

Simple from the first message

1. Tell me what you have

Send the year, model, what was repaired, and what still needs to be done.

2. Get a straight answer

If it fits my Sea-Doo or BRP software tools, I will explain the next step. If it does not, I will tell you that too.

3. Choose your path

Send a quick request without an account, or create a portal account if you want service history, invoices, and job updates in one place.

Request Without Account Create Account