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Weber Idle Jet, DCOE, F9

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The idle jet is installed under the jet cover on the Weber DCOE series and 45 MCHH carburetors. The F designation indicates that this jet controls both air (side inlet hole) and fuel (inlet hole at the tip). The F number refers to air control, and the size number refers to fuel flow. Two idle jets are required per carburetor (one for MCHH). Sold individually.

Note that Weber assigned F numbers chronologically, as they designed the jets. They do not follow a linear "richest to leanest" sequence. The F9 allows air in through a single 1.00mm bleed hole in the side, making it leaner than the F6 but richer than the F8. The size numbers do follow a linear sequence, with larger numbers allowing a richer idle mixture. When switching from one F number to another, experts recommend starting with the same fuel size number.

DCOE idle jets, listed in order from richest to leanest air bleed:
F6 DCOE Idle Jet (Part No. 74819): Single 0.70mm air bleed
F9 DCOE Idle Jet (Part No. 74822, this jet): Single 1.00mm air bleed
F8 DCOE Idle Jet (Part No. 74821): Single 1.20mm air bleed (large fuel bore)
F11 DCOE Idle Jet (Part No. 74824): Single 1.20mm air bleed (smaller fuel bore)

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Desc.
Price
Status

74822-F9-40
Condition: New
SKU: 35717

Weber DCOE Idle Jet F9 .40

$6.99In Stock

74822-F9-45
Condition: New
SKU: 35718

Weber DCOE Idle Jet F9 .45

$6.99In Stock

74822-F9-50
Condition: New
SKU: 35719

Weber DCOE Idle Jet F9 .50

$6.99In Stock

74822-F9-55
Condition: New
SKU: 35720

Weber DCOE Idle Jet F9 .55

$6.99In Stock

74822-F9-60
Condition: New
SKU: 35721

Weber DCOE Idle Jet F9 .60

$6.99In Stock

74822-F9-65
Condition: New
SKU: 35722

Weber DCOE Idle Jet F9 .65

$6.99In Stock

74822-F9-85
Condition: New
SKU: 44870

Weber DCOE Idle Jet F9 .85

$6.99In Stock
 
Related Product Groups
Weber DCOE Parts & Jets