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Backpack Brushcutters · part-number series 4119

FS 220, FS 220 K, FS 280, FS 280 K, FS 290

17 exploded views, 488 part numbers.

Factory tuning settings

Idle speed2,800 rpm
L screw (low speed)1 turn
H screw (high speed)1 turn
Confidencesourced

Screw figures are turns open from lightly seated. Set the final mixture by ear and tachometer against the machine in front of you — running a two-stroke lean to hit a published number is how pistons get scored.

Others on part-number series 4119

These share the powerhead, so a sheet you cannot find here may be filed under one of them. That does not make every part interchangeable — check yours.

Parts are not interchangeable across series — check yours before ordering.