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Where can I find carbs kits for these???

CRei

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Jersey Shore
1997 GTX. 787Image1577927278.392867.jpgImage1577927296.742440.jpgImage1577927333.729138.jpg
They look different are they the same? Pretty clean inside, think most of the problem was a kinked feed line between them.Image1577927461.163780.jpg
 

gazzaskirepair

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Water Crafts
RXT. RXT IS SPEEDSTER 2006 REPAIR SEADOOS WEEKLY FOR CUSTOMERS
Thejetskistore.com
Replace the grey hoses with new as the gum up inside
Same shop May have
 

mikidymac

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Do not buy your carb parts from thejetskistore they sell SBT carb kits that will give you nothing but problems if you go by the ski model selector. They do have Mikuni but are more expensive than other places.

Only buy genuine mikuni parts. You can buy the Mikuni MK-BN38/44 SPR kits on Amazon and eBay and needle and seats or order the complete kits from OSD Seadoo.

The nice thing about OSD is you get all the parts and carb base Gaskets in one place.
 
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mikidymac

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23-43 is the spec but shoot for about 35.
Do not use the springs in the kits, yours has to have the 80 gram black/army green springs
 

PorknBeans

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Fouling the tracks...
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'96 Sea Doo GSX 800
'98 Sea Doo SPX 800
'90 Kawasaki 550SX
Pop off pressure for your model is 23 psi - 43 psi. Be sure the Needle/Seat valves are a 1.5; Main jet is a 142.5 and the Pilot jet is a 70
 

mikidymac

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For some reason I can’t see the picture.
 

CRei

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Sorry about that was never a good photographer. I have not rebuilt them yet was doing like a before and after. There’s two inlets I used smaller one for test. The bubbling was around the seat and was holding no pressure. IMG_1279.JPGIMG_1278.JPGIMG_1280.JPG
 

GGuillot

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Alabama
Water Crafts
1997 GTX
1996 GSX
Sorry about that was never a good photographer. I have not rebuilt them yet was doing like a before and after. There’s two inlets I used smaller one for test. The bubbling was around the seat and was holding no pressure. View attachment 46067View attachment 46068View attachment 46069
You're using a penetrate like W40 on the seat? Rebuild them and try new genuine needles/seats and see if it pops. If you use new oem kits, needles/seats/arms and blk 80 gram springs you should see 34-35 psi on the pop off.

OSD marine or bayareapowersports should have the genuine kits. I think I spent $136 shipped with bayarea which included the 1.5 needle/seats then another $10 for 2 blk 80 gram springs. If you strip the screws taking it apart there's a guy on ebay selling a ss allen head kit for about $9 per carb.

Use everything in kits but the springs, don't overlook the HS and LS needle o rings. And clean, clean, clean, use compressed air and blow it out.
 

mikidymac

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You also need to clean those a lot better. They need to be spotless inside.
 

CRei

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Ok thanks !! Very useful info, which port is the correct to hook the pop off gauge too? Guy said these were rebuilt about a year ago too, I’ll get a new needle and seat thanks again
 

mikidymac

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On the fuel pump cover side you will see an arrow in and an arrow out. Your pop-off tester goes on the one with the arrow facing in, you cap off the one with the arrow going out.

That last one looks petty nasty inside for being rebuilt a year ago. Also with all that corrosion on the diaphragm groove you might have a hard time getting it to seal. Make sure you pressure test the carbs once they are back together.
 

GGuillot

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Location
Alabama
Water Crafts
1997 GTX
1996 GSX
So I need two 1.5 needle and seats and. Two black 80 gram springs? Thanks
Yes, dual carbed. Here's the kits I purchased for my 97' GTX and again for my 96' GSX. Sea Doo Dual Genuine Mikuni Carb Rebuild Kit Base Gasket & Needle Seat 787 XP 95 | eBay

Search "mikuni 80 gram spring" on ebay, you need two... Genuine Mikuni SQ BN Needle Valve Arm Spring Pop Off 80 Grams Black 730-03033 | eBay

If you want a SS allen screw set... you need two. Totally worth it for $16 shipped. Mikuni Carb Stainless Screw Kit Super BN SBN 38 44 46 Seadoo Sea doo XP SPX GTX | eBay
 

mikidymac

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As another option you can get everything including base gaskets from OSD Seadoo.
 

GGuillot

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Messages
973
Location
Alabama
Water Crafts
1997 GTX
1996 GSX
As another option you can get everything including base gaskets from OSD Seadoo.
The dual kits I posted above for $136 shipped includes the base gaskets, needles/seats and unopened genuine kits. Only the springs are separate. With OSD, you still need to buy the needle arms separate, since the kits are pieced together from bulk parts and some stuff is left out. My experience doing a carb rebuild for a ski buddy the old/new arms made a difference. My carb rebuilds were dead on 34-35 psi with the pop off using a new arm, spring, and needle/seats.

Guess the decision is preference....
 

mikidymac

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Needle & Seat and springs look correct.
 

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