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Edgers · part-number series 4140

FS 55, FS 55 C, FS 55 R, FS 55 RC, FS 55 T

28 exploded views, 667 part numbers.

Factory tuning settings

Idle speed2,800 rpm
Confidencesourced

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 4140

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.