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Seadoo, Kawasaki and yamaha Jetski Engine and Supercharger mail in rebuild service

Questions? Call or text 678-228-8476

Our Jet Ski Engine Rebuild Service specializes in Kawasaki STX 12F/15F engine rebuilds, Kawasaki Ultra rebuilds (250/260/300/310) and Sea-Doo 4-TEC engine rebuilds including RXP, RXT, GTR, GTX, and more. (155/185/215/255/260/300) Seadoo 325 Motors will need to be sent in first (no cores)


We focus on delivering a complete, reliable, and cost-effective engine restoration that brings your ski back to factory-level performance.


This is a rebuild service, not a full remanufacturing service. Your engine is rebuilt using a combination of brand-new components and high-quality OEM parts that pass inspection. This keeps the cost reasonable while maintaining top-tier reliability

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Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

 

  • Full degrease, hot tank & strip all components


  • Pistons as needed (2014-2022 310 may need to be upgraded to 300 pistons or aftermarket)


  • Cylinder head pressure test. (Please note we don't take Ultra 250 heads anymore because they almost all have cracks)
     
  • Cylinder diamond deglaze or jug replacement
     
  • Head gasket, valve cover gaskets and spark plug seals
     
  • Valve stem seals


  • Valve grinding 


  • Valve Lash adjustment to spec
     
  • Timing chain & guides (as needed)
     
  • Inspect Crankshaft
     
  • Replace Center, end, rod bearings and thrust washers
     
  • Crank/pto cover seals
     
  • Oil pump inspection gasket
     
  • Full bottom end gasket kit. Specifically resealing case halves, oil pan, PTO cover o rings, metal base gasket.

Seadoo 4Tec rebuilds 2002-2025

Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

  • Full degrease, hot tank & strip all components


  • Piston ring replacement (note we reccomend replacing cast pistons from 02-05 NA models)
     
  • Cylinder hone
     
  • Head gasket, valve cover gaskets
     
  • Valve grinding 


  • Upgraded flywheel bolts
     
  • Timing chain
     
  • Inspect Crankshaft
     
  • Replace all bottom end bearings
  • Oil pump inspection and replacement (almost always needed on 4tec)
     
  • PTO housing oil pump machining (Please send with PTO cover - starter not needed)

Yamaha TR-1 Rebuilds 2016-2025

Kawasaki Jetski 2003-2025 STX/Ultra Rebuilds

Yamaha TR-1 Rebuilds 2016-2025

  • Full degrease, hot tank & strip all components


  • Piston ring replacement
     
  • Cylinder diamond hone deglaze
     
  • Head gasket, valve cover gaskets
     
  • Valve grinding 


 

  • Timing chain
     
  • Inspect Crankshaft
     
  • Replace all bottom end bearings
  • Oil pump inspection


  • Crank bearing replacement & crank seals


✔ Core Fee Policy

A rebuildable core is required for every engine build.

  • If you send in your engine → No fee
     
  • If you DO NOT send in a rebuildable core →
    A $1,500 core fee will be invoiced
     

This applies to both Kawasaki STX/Ultra and Sea-Doo 4-TEC engines BESIDES sea doo 325 as those cores are cost prohibitive.


✔ Shipping & Freight Information

We ship and receive engines nationwide.

Typical freight cost for a stripped jet ski engine shipped from Georgia:

  • Approximately $200 to most East Coast & Central states
     
  • Around $300 for West Coast deliveries


 We offer complete Seadoo, Yamaha and Kawasaki engine rebuild services for all Rotax 4-TEC, RXP, RXP-X, RXT, GTI, and GTR models, as well as professional Kawasaki Ultra 250X, 260X, 300X, and 310R supercharger rebuild services using OEM-spec components and precision slip settings. Our shop also provides trusted Seadoo supercharger rebuilds, exhaust manifold surfacing for Seadoo and Kawasaki manifolds, and performance-focused machine work for jetski parts including cylinder surfacing, head machining, supercharger case refinishing, and port cleanup. Whether you ride a Seadoo RXP-X 300, RXT-X 300, Kawasaki Ultra 310, or any 4-stroke PWC, our rebuild and machining services help restore power, increase reliability, and keep your jet ski running at peak performance. 



 Jet Ski Models We Service

Sea-Doo Models (Rotax / 4-TEC / ACE Engines)
RXP • RXP-X 215 / 255 / 260 / 300 • RXT • RXT-X 260 / 300 • GTX • GTX Limited 215 / 260 / 300 • GTR 215 / 230 • GTI 90 / 130 / 155 • GTS • Wake 155 / Wake Pro 215 / 230 / 300 • Spark • Spark Trixx • Sea-Doo 4-TEC NA and SC models • Sea-Doo 1503 engines • Sea-Doo 1630 ACE engines • Sea-Doo supercharged and non-supercharged models

Kawasaki Jet Ski Models
Ultra 250X • Ultra 260X • Ultra LX • Ultra 300X • Ultra 300LX • Ultra 310X • Ultra 310R • Ultra 310LX • STX-15F • STX 12F • STX 160 / LX / X • SX-R 1500 • Kawasaki supercharged Ultra series • Kawasaki STX series • All Kawasaki Jet Ski 4-stroke models

Yamaha WaveRunner Models
• GP1800 / GP1800R • FX HO • FX SHO • FX SVHO • FX Cruiser HO / SHO / SVHO • VX / VXR / VXS • V1 • EX / EX Sport / EX Deluxe • SuperJet 2-stroke & 4-stroke • Yamaha HO, SHO, and SVHO supercharged model

Need Something else?

Send us a message for a quote, if we can't handle your request we will refer you to someone who can.

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Better yet, see us in person!

We love our customers, so feel free to visit during normal business hours. 7541 Lanier Islands Parkway Buford, GA 30518

Lake Lanier Jetski & Watersports

7541 Lanier Islands Parkway, Buford, GA, USA

(678)228-8476

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