OSD "Back To OEM" Sea Doo Dual Carb Rebuild Kit (GTX SPORTSTER SPEEDSTER 657X)

  • Model: OSD1280
  • 17 Units in Stock
  • Manufactured by: OSD

Starting at: $134.99

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Fuel System Opt. Extras






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NOTE THIS 657X BTO KIT DOESN'T INCLUDE NEEDLE SPRINGS. IN ORDER FOR THIS KIT TO WORK PROPERLY YOU NEED TO REUSE YOUR ORIGINAL OEM 270500242 SPRINGS. ALL 657X ENGINES USE SPECIAL DISCONTINUED NON STANDARD NEEDLE ARM SPRINGS AND THERE'S NONE AVAILABLE THAT ARE EVEN CLOSE. IF YOU DON'T HAVE THE ORIGINAL SPRINGS YOU MIGHT HAVE TO SOURCE THOSE FROM SOMEPLACE LIKE EBAY.

Over the years and various carb rebuilds, parts in your carb often get swapped out with parts that don't belong in them. We decided to fix that issue with these "Back To OEM" kits. What this complete carb rebuild package will basically do is bring your carb back to how it came from the factory. The package we offer features OEM Mikuni parts instead of aftermarket since if you want your carb back to OEM specs it needs OEM parts! The best feature of all though with this kit is you don't have to set popoff with this one since you're basically bringing your carbs back to how they were when new. Sea Doo never messed with popoff and you shouldn't have to either!

  • Includes all OEM Mikuni soft and hard parts to rebuild your dual carbs including internal filters, gaskets, formed o-rings and more.
  • Includes One (1) OEM Fuel Pump Rebuild Kit which includes diaphragms, o-ring, gasket, check valves and grommets.
  • Includes Two (2) NEW 1.5 OEM MIKUNI Coated VITON Needle Valve Assemblies.
    Viton is the best needle you can use and resists the alcohol in todays fuels and these most current Coated ones resist fuel additives that can cause needles to stick.
  • Includes Two (2) Carb Base Gaskets. (NOT SHOWN)
  • Also as an added bonus we include NEW Stainless Hex Cap Screws to replace oem slotted ones!*

  • We've noticed due to no clear instructions or diagrams in service manuals, lots of people tend to assemble Sea Doo carbs incorrectly so we've put together diagrams to help put parts in the proper order and places. THE FUEL PUMP CARB / THE NON FUEL PUMP CARB That should cover where everything in our kit goes but refer to an oem service manual if you need more detailed instructions.

This kit works on the following Sea Doo watercraft...

YEARMODELADJUSTMENT
1994
SPEEDSTER
LOW- 1-1/4 HIGH- 1/4
1995
GTX
LOW- 1-1/4 HIGH- 1/4
1995
SPORTSTER
LOW- 1-1/4 HIGH- 1/4
1995
SPEEDSTER
LOW- 1-1/4 HIGH- 1/4

(NOTE BOAT ADJUSTMENT SPECS BASED OFF 1995 GTX PWC SPECS. ALL THESE USE SAME CARB SETUPS SO SHOULD BE THE SAME FOR INITIAL ADJUSTMENTS)

(Note although this page says this kit is in stock, depending on time of year it may take 5-7 days to ship one of these kits since we sell lots of these so take that into consideration when ordering. If you want to know if we actually have one when ordering, e-mail us for availability and make sure to let us know which kit you''re interested in.)
* Note due to the many different configurations on Sea Doo carbs, this bolt set may not fit all models. You may have to add washers or use the oem bolts in place of some/all.


This product was added to our catalog on Saturday 09 July, 2022.

*PARTS SEARCH*

NOTE WE WILL TENTATIVELY BE CLOSED 4/18-4/24.
We don't have a way for you to look up oem parts yet but you can use the parts search HERE to get part numbers then use the OSD search to see if we have what you need. If the part doesn't show contact us and we'll add any parts not listed to our site (if not discontinued).

Payment Methods Accepted...

IF YOU'RE ORDERING PARTS, BEFORE YOU CHECK OUT MAKE SURE IF YOU HAVE A PAYPAL ACCOUNT, YOU HAVE FIRST LOGGED ON PAYPAL AND DELETED ANY BAD ADDRESSES FROM PAYPAL. NO MATTER WHAT YOU PUT ON THE OSD SITE, IT REVERTS TO WHAT YOU SELECT IN PAYPAL FOR SHIPPING.
IF WE HAVE TO CANCEL AN ORDER BECAUSE YOU DIDN'T DO THAT AND USED THE WRONG SHIP TO ADDRESS, IT'S GOING TO COST YOU THE PAYPAL FEES WE CAN'T GET BACK ON CANCELED ORDERS.




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USING THE PAYPAL GATEWAY
TO USE YOUR CREDIT CARD SELECT PAYPAL FOR YOUR PAYMENT METHOD THEN ONCE REDIRECTED THERE CLICK THE BUTTON THAT SAYS "PAY WITH CREDIT/DEBIT CARD". YOU THEN CAN ENTER YOUR CC INFO.


Looking for a discount coupon? Our prices are already 10-20% less than everyone else so we don't play that game. If you find an item on another site for less though let us know so we can fix that!
Other Payment Methods Accepted Too!

Manufacturer Info

TECH LINKS

Sea Doo Tech
RAVE Valve/Housing Wear Check
PWC Engine Ref. Chart
Jetboat Engine Ref.
Choke Cable Info Chart
Coil Reference Chart
Crank Exploded Views
Driveshaft ID Chart
Engine Torques Specs
Fuel Baffle Chart
Gauge Information
Impeller Info Chart
OEM Kit Info Chart
Mikuni Carb Specs
Mikuni Test Tips/Tricks
MPEM Ref & Programming
Non-Wired MPEM Test
SDS Opinion on Oil
Rotax Crankcase ID
Rotax Engine Info
Rotax Casting Info
Sea Doo Paint Codes
Seat Reference Chart
Spark Plug Reading
1995-2004 VTS Test Info
1995 & UP VTS Tech Info
029/358 VTS Module Test
Water Flooded 2 Stroke
Wear Ring Removal
4 Stroke Fault Codes
More SDS Tech Info
Sea Doo Manuals

If you've bought one of our carb kits, a great page by GroupK that details the procedures for carb fine tuning can be found HERE

TECH TIP...
If you're installing an impeller on a Sea Doo, don't follow the manual when it calls for red loctite on the threads... use anti-sieze instead. That way if you want to take it apart again you can. We've built hundreds of pumps now with anti-seize and it works great!


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