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Deep Well Float Bowl Nut

$15.95

See applications below in description.

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Description

Increase Float Bowl Capacity

Deep Well Float Bowl Nuts were designed to store more fuel around the main jet, eliminating the potential of running lean due to fuel starvation. The Dial-A-Jet fuel pick-up is placed further from the main jet eliminating fuel cavitation between the two circuits. Deep Well Nuts are also a space saver allowing you to place the Dial-A-Jet, IntelAJet or Thunder PowerJet fuel pick-up on the side of the nut rather than the bottom.

Keihin Deep Well Float Bowl Nuts

Keihin Deep Well Float Bowl Nuts

Mikuni Deep Well Float Bowl Nuts

Mikuni Deep Well Float Bowl Nuts

All deep well float bowl nuts are machined from billet 6061 Aluminum.
DJ-548 and DJ-549 also have diamond hardcoat finish with teflon coating.

DJ-540
Fits: 32mm – 38mm VM roundslide Mikuni carbs and TM 33, TM 42-48, TMX 42-48
and TMS 42-48
-Thread OD on Nut = .6245″
-Depth (from gasket surface to bottom) = .82″

DJ-545
Fits: 40mm – 44mm VM roundslide Mikuni carbs
-Thread OD on Nut = .8585″
-Depth (from gasket surface to bottom) = .9″

DJ-546
Fits most Keihin carbs including most FCR carbs
-Thread OD on Nut = .6945″
-Depth (from gasket surface to bottom) = .78″

DJ-547
Fits most Keihin carbs including most FCR carbs. Great for vehicles with limited space under carb.
-Thread OD on Nut = .6945″
-Depth (from gasket surface to bottom) = .45″

Tech note: The floor of the float bowl nut and main jet are so close to the fuel flow holes in the stock nut that a hard landing will actually force fuel out the flow holes, causing the engine to suck air under heavy load and resulting in extreme engine damage and failure. We have moved the flow holes in the DJ-548 and DJ-549 so that this condition does not occur using these nuts.

DJ-548
Fits: Mikuni 38mm and 40mm TM Rack style carbs (OEM onDial-A-Jet deep well float bowl nut, increase capacity, more fuel, Mikuni, Keihin, Arctic Cat and Polaris snowmobiles). Also fits 38mm and 40mm TM Rack style carbs on Ski-Doo providing you have ample room for the extra length.
-Depth (from gasket surface to bottom) = .87″

DJ-549
Fits: Mikuni 38mm and 40mm TM Rack style carbs (OEM on Arctic Cat, Polaris and Ski-Doo snowmobiles). NOTE: Due to engine placement on some model Ski-Doo’s, only the DJ-549 will fit. The inside bore is deeper in the DJ-549 because it does not have an external bottom bore like the stock float bowl nut (see photo on right).
-Depth (from gasket surface to bottom) = .3″

Photos

Additional information

Weight .4 lbs
Deep Well Nuts

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