Full Bore

 

Sea Doo 650 top end kits.

Take the guess work out of rebuilding your Sea doo 650 657X top end.

Everything you need to rebuild your Seadoo 650, 657X top end.  Starting at $285

Full Bore top end kits are returned to you with everything needed for your top end rebuild, including Your cylinders bored to the next available piston size.  pistons, rings, pins, bearings, circlips, head gasket, base gasket, exhaust gaskets and any other gaskets that come in a top end gasket set for your model.

limited time free return shipping on our Seadoo top end kits to the 48 Continental States!!!

Free return shipping on top end kit's purchased here on the website only!

Top end kit

All work is guaranteed!!!

After we receive your cylinders we will inspect them and determine what oversize pistons it will take to make the cylinders straight (usually 1st or 2nd over) then bore your cylinders on a boring bar, final sized with a rigid hone.  The ports are chamfered in a 3 stage process to ease the rings back in, including a final hone to extend engine life, and improves performance. The kit is returned to you with everything needed for your top end rebuild

No more trips home from the machine shop without your cylinders because the pistons weren't big enough to clean it up.  Let alone the fact you have to send those pistons back and order another set.  We keep it simple and offer solutions for your top end rebuild and get you back on the water.

All cylinder work is done here at Full Bore.

If you send your old piston and spark plug, we can usually tell you what caused the failure so you can keep this from happening again.  Please note old pistons and spark plug will be disposed and not returned.

Sea Doo 650, 657, 657X Top End rebuild Kits

Full Bore top end rebuild kits include everything needed for your top end rebuild.

Your cylinders (2) are bored up to 0.040" (1mm) oversize. Includes 2 WSM pistons, rings, pins, bearings, circlips, head (o-rings) gasket, base gasket, and exhaust gaskets. 

  • Pistons
  • Rings
  • Gaskets
  • Circlips
  • Upper bearings
  • Wrist Pins
  • Your cylinders bored to fit.

The Platinum pistons are molly coated to reduce friction.

Sea Doo 650/657X top end rebuild kit. 

Standard kit (with WSM pistons) $285. Platinum kit (WSM Platinum pistons molly coated) $295

'94 and newer 657/657X

Select Platinum or Standard '94 and newer
 

'93 XP 650/657 Available in standard style only.

Select 93 only

 

We highly recommend sending the upper rod bearing with cylinders so we can verify fit.

If your cylinders are already 0.040" (1mm) over, or need to go larger to clean up they would require resleeving or Wossner pistons.

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Wossner logo

The ultimate top end rebuild kit for your seadoo Rotax 650/657x!

Wossner pistons are a German made pistons realized by revolutionary computerized manufacturing technique coming from GP and F1 racing. Forged piston for strength and Mos2 coating reduces friction and heat for added performance.

Sea Doo 650, 657, 657x top end rebuild kit with Wossner forged pistons. 650/657x $349

  • Wossner forged and mos2 coated Pistons
  • Rings
  • Wrist Pins
  • Circlips
  • Upper bearings
  • WSM Gaskets
  • Your cylinders bored to fit.
  • Free return shipping to the 48 Continental States!!! 
Choose year and model
 

We highly recommend sending the upper rod bearing with cylinders so we can verify fit.


Parts only top end rebuild kits.

Sea doo 650, 657x Parts only top end rebuild kit's.

Includes WSM piston kits, upper bearings and top end gaskets.

94 and newer 650/657 650/657x

WSM O.E.M.  Style kit retail $229.88 our price $199.95.

Choose piston size in drop down menu.

Piston size
 

WSM Platinum kit retail $245.40 our price $225.95

Choose piston size in drop down menu.

Piston size
 

93 XP only

WSM O.E.M.  Style kit retail $229.88 our price $199.95.

Choose piston size in drop down menu.

Piston size
 

$15 shipping and handling.


Shipping your cylinders.

When shipping cylinders, pad them tightly with crumpled newspaper or dense foam, be sure cylinder (s) are secure and don't move freely in the box causing damage.

Don't forget to insure your shipment.  If you keep your shipping receipt, you can check online to see when it is received on our end.  Please send with signature required.  When we ship your cylinders or engine back,  you will receive an email with tracking info.

Be sure to include clear instructions of work requested, return address, and billing info, phone # and email address. 
If you have a pay pal receipt, please put a copy in with the cylinders.


Turnaround time

*Turnaround time is running 7-10 business days on our top end kits.

*Turnaround time is initiated when the product is checked in by Full Bore. The turnaround time provided is an estimate based on the incoming repair volume.


Placing an order is straight forward.

First find what you are looking for and make the payment right here on the website.

After making payment with buy it now button, ship your cylinders with a copy of receipt, contact phone #, return shipping address and any special requests.

If paying with a cashier check (certified bank check)  please contact us at info@fullboreonline.com to let us know it is coming so we can keep it in mind for scheduling.  Please note that we schedule our  workload by payments received and or deposits.  Shipping us something overnight doesn't mean we can do it immediately.  If you are in that big of a hurry, be sure to find out our current turn around time before ordering. 


Contact us

Email us at info@fullboreonline.com

Phone 989-340-1321

9-5 Monday - Thursday

9-4 Friday Eastern time.

Shipping address (shipping only)

Full Bore
486 S Ripley Blvd
PMB #228
Alpena, MI 49707