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Weber Idle Jet, DCOE, F11

Click for a larger picture of Weber Idle Jet, DCOE, F11

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 F11 allows air in through a single 1.20mm bleed hole in the side, while fuel flows through a small 1.5mm internal bore. This makes it the leanest family of idle jets we currently offer. The size numbers do follow a linear sequence, with larger numbers allowing a richer idle mixture. The 50 size is most commonly used as a starting point when changing from one F number to another.

The F8 DCOE Idle Jet (Part No. 74821) is the next step richer, followed by the F9 DCOE Idle Jet (Part No. 74822). The F6 DCOE Idle Jet (Part No. 74819) is the richest available.

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Order Qty
Part No.

Condition: New

Weber DCOE Idle Jet F11 .40

$6.99In Stock

Condition: New

Weber DCOE Idle Jet F11 .55

$6.99In Stock

Condition: New

Weber Idle Jet, DCOE, F11

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