Stihl model · engine series 1106
090 / 090 AV 136.8 cc
136.8 cc; 090 AV export production into the 2000s
The production, market and rarity details above are specific to the 090 / 090 AV roster record. The displacement below is specific to this roster record. The chain, bar and mount are the published family fitment for engine series 1106; confirm the pitch, gauge and drive-link count stamped on your installed bar before ordering.
Model & family fitment specs
Chains & bars that fit the 090 / 090 AV
Pitch & gauge .404″ · .063–.080″ · recommended bar 25–42″ · bar mount 3002 / E099 / D033 / E031 / E086 · round file 7/32" (5.5 mm)
Chain & bar by length
| Bar | Drive links | Shop |
|---|---|---|
| 25″ | 80 DL | Chain → Bar · 3002 → |
| 30″ | 91 DL | Chain → Bar · 3002 → |
| 36″ | 108 DL | Chain → Bar · 3002 → |
| 41″ | 123 DL | Chain → Bar · 3002 → |
Drive-link counts come from STIHL's saw-chain catalog. Bar searches include mount 3002; still confirm the mount stamp, pitch, gauge and drive-link count on your installed bar before ordering.
Files, oil & sharpening
Suggested match: Oregon 27/59-series. Confirm the drive-link count for your exact bar length before ordering. These are equivalent aftermarket (Oregon) chains, not genuine STIHL chain — STIHL sells its own chain through its dealer network, and we're not affiliated with STIHL. New to fitment? See the bar-mount identification guide and chain & cutter guide.
Some links earn us a commission. It never changes the specs or what we recommend.
Factory tuning settings
| Idle speed | 2,000 rpm |
| Max speed | 7,500 rpm |
| L screw (low speed) | 1 turn |
| H screw (high speed) | 1 turn |
| LA screw (idle stop) | 1/4 turn |
| Confidence | sourced |
Screw figures are turns open from lightly seated. These are the figures every model in this family shares; an individual model page may be more specific. 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.
Parts diagrams (19)
511 part numbers. The catalogue files these under the 090, 090 G, one bill of material covering this model.
Related models in series 1106
Data confidence
Chain, bar, mount and displacement confidence comes from the shared Contra · 070 · 090 · MS 720 family research.
Something wrong or missing for the 090 / 090 AV? Report a correction →