Stihl engine series 1127 · FR
029/039 · MS 290/310/390
MS 380/381/382 are series 1119 (038 descendants, 1119-prefix parts) — previously mislisted here.
Chains & bars that fit the 029/039 · MS 290/310/390
Pitch & gauge 3/8″ · .050–.063″ · recommended bar 16–20″ · bar mount 3003 / D025 · round file 7/32" (5.5 mm)
Chain & bar by length
| Bar | Drive links | Shop |
|---|---|---|
| 16″ | 60 DL | Chain → Bar · 3003 → |
| 18″ | 66 DL | Chain → Bar · 3003 → |
| 20″ | 72 DL | Chain → Bar · 3003 → |
Drive-link counts come from STIHL's saw-chain catalog. Bar searches include mount 3003 / D025; still confirm the mount stamp, pitch, gauge and drive-link count on your installed bar before ordering.
Files, oil & sharpening
Suggested match: Oregon 72/73/75 EXL. 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.
Reference service specs
Reference-only service facts. STIHL revised parts by serial number, market, and production revision; verify against the saw label, IPL, or dealer parts lookup before ordering.
| Spark plug | Bosch WSR 6 F · NGK BPMR 7 A |
| Fuel filter | 0000 350 3500 |
| Air filter | 1127 120 1621 (compensating) · 1127 120 1611 (non-compensating) |
| Starter rope | 3.5 mm · 38″ |
| Guide coverage | 029 · 039 · MS 290 · MS 310 · MS 390 |
| Source | 2019 STIHL Technical Reference Guide · sourced |
- 029/039 air-filter variant depends on compensating vs non-compensating carb setup.
Factory tuning settings
| Idle speed | 2,800 rpm |
| Max speed | 13,000 rpm |
| LA screw (idle stop) | 1/4 turn |
| Confidence | reconstructed |
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. Matched on the base model number rather than this exact variant, so treat it as a starting point. 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.
Models in this family (5)
700 part numbers across 25 exploded views — the Diagrams column goes straight to them.
| Model | Years | Market | Rarity | Diagrams | Notes |
|---|---|---|---|---|---|
| 029 54–56.5 cc | 1992–00 | Global | Common | 12 | 54 cc → 56.5 cc; → MS 290 |
| 039 64 cc | 1992–00 | Global | Common | 12 | 64 cc; → MS 390 |
| MS 290 Farm Boss 56.5 cc | 2000–13 | Global | Very Common | 13 | 56.5 cc; US production ended 2013, stock sold into 2014 |
| MS 310 59 cc | 2000–12 | Global | Very Common | 13 | |
| MS 390 64.1 cc | 2000–11 | Global | Very Common | 13 | 64.1 cc; end date varies by market (2009–2012) |
Service bulletins (12)
Running changes and fixes STIHL published for this engine family.
- TI 64/2005 Clutch, clutch shoes; Summary
- TI 21/2005 Limiter cap; Segment; Spare parts; Removal of the limiter caps; Summary
- TI 36/2004 Carburetor; Decompression valve; Oil pump (MS 290); Cylinder (MS 290)
- TI 35/2002 New Design; Tank Vent; Fan Housing with “ElastoSta
- TI 26/2000 New MS 310 version; New sales designations for 029
- TI 14/2000 Baffle plate in intake; Engine (oil seals); Engine
- TI 15/1998 029, 039: Filler Caps
- TI 46/1997 Uprated engine; 029 SUPER; air filter/carburetor;
- TI 38/1996 Fleece replaces flocked wire cloth filter
- TI 48/1995 Filler cap; collar with loop on spark plug boot de
- TI 25/1995 Chain brake; pickup body; 039 oil pump
- TI 39/1994 Wiring harness; muffler mounting
Data confidence
Verify anything tagged estimated or approx against STIHL spec sheets.
Something here wrong or missing for the 029/039 · MS 290/310/390? Report a correction →