1998 Sea Doo Carburetor

[Bentaxes]

Hi i am looking to get new carbs for my engine BN 40-38-30 and BN 40-38-29.

However the only carbs available are BN 40I-38-27 and BN 40I - 38-26. What's the difference between bn40-38-30 bn40-38-27 carburetors
and can they fit?

For Seadoo Speedster 1998 twin 787

 

[POPPS]

Okay...why would you need new carbs?,,,I have never had to replace a pwc carb..small engine carbs for sure.,,

 

[Bentaxes]

The engine is stalling out while idling. I replaced the fuel pump, fuel filter, and spark plugs.
I sprayed carb cleaner and ran it at full throttle same result.

 

[POPPS]

What motor?

 

[mikidymac]

You need to rebuild the carbs with new genuine Mikuni parts and new needles and seats following the carb rebuild thread sticky.

Just replacing the fuel pump won’t fix dirty carbs.

 

[Bentaxes]

787

 

[Bentaxes]

What motor?

787

 

[Bentaxes]

You need to rebuild the carbs with new genuine Mikuni parts and new needles and seats following the carb rebuild thread sticky.

Just replacing the fuel pump won’t fix dirty carbs.

I prefer to buy two carbs but having troubles finding the replacements

 

[mikidymac]

Check with OSD Seadoo.

OSD Sea Doo 787 800 MAG Side Carb​

OSD_787MAG
$219.99
... more info

OSD Sea Doo 787 800 PTO Side Carb​

OSD_787PTO
$219.99

 

[Bentaxes]

Check with OSD Seadoo.

OSD Sea Doo 787 800 MAG Side Carb​

OSD_787MAG
$219.99
... more info
View attachment 56389

OSD Sea Doo 787 800 PTO Side Carb​

OSD_787PTO
$219.99

Thanks, out of stock waiting for back order

 

[POPPS]

Wow,,,2 OEM carb kits and you should be golden,,,

 

[BucksNasty]

When you pull you old one's off can I have them please?

 

[Bentaxes]

Will keep you posted

 

[Bentaxes]

Received the carburetors from OSD, however the old carburetor did not have pulse fitting only on the fuel pump. Could I bypass the fuel pump and attached the hose from the fuel filter directly to the carburetor and carburetor pulse hose to the engine?

 

[themk]

No, it will not work right without the fuel pump.

 

[Bentaxes]

What modification is needed? I have a 1998 sea doo speedster jet boat and the old carburetor does not have pulse line fitting only on the fuel pump. Original Carburetor Part number 270500385 and 270500386.

 

[mikidymac]

Please post some pictures.

If you have a boat with the external fuel pump then just use the old blockoff plate from your old carb on the new carb and remove the integrated fuel pump from the new carb.

 

[Bentaxes]

Please post some pictures.

If you have a boat with the external fuel pump then just use the old blockoff plate from your old carb on the new carb and remove the integrated fuel pump from the new carb.

Will try it