STIHL 017 Parts Manual

The STIHL 017 is a professional-grade chainsaw designed for demanding cutting tasks. This parts manual provides detailed information on all components, assemblies, and spare parts for the STIHL 017 model, including the engine, cutting attachment, fuel system, ignition system, and housing. Below are key sections for identification, major assemblies, ordering parts, exploded diagrams, and maintenance.

Model Identification & Specifications

Key identification features: Model number plate location, engine type, serial number range.

Feature	Description
Model Designation	STIHL 017
Engine Type	Single cylinder, two-stroke, air-cooled
Displacement	31.8 cc (1.94 cu. in.)
Power Output	1.6 kW (2.1 hp)
Fuel/Oil Mix Ratio	50:1 (STIHL HP Ultra oil)
Guide Bar Length Options	12", 14", 16"
Chain Pitch	3/8" PMM or .325"
Ignition System	Electronic, breakerless
Weight (powerhead only)	Approx. 4.6 kg (10.1 lbs)
Serial Number Location	On crankcase, right side

Engine Assembly Parts

Cylinder, piston, crankshaft, connecting rod, bearings, seals.

1. Cylinder Assembly: Includes cylinder, fins, exhaust port, transfer ports.
2. Piston Assembly: Piston, rings, wrist pin, circlips.
3. Crankshaft Assembly: Crankshaft, main bearings, oil seals.
4. Connecting Rod: Connects piston to crankshaft, small end bearing.
5. Crankcase: Two halves, engine mounting points.

WARNING! Use genuine STIHL parts only for engine assembly. Improper parts can cause engine failure or safety hazards.

Cutting Attachment Parts

Guide bar, saw chain, sprocket, clutch, chain brake, bar nuts.

1. Guide Bar: Roller nose or solid nose, various lengths, groove type.
2. Saw Chain: Cutting links, drive links, tie straps, rivets.
3. Sprocket: Rim sprocket or spur sprocket, part number varies by pitch.
4. Clutch Assembly: Clutch drum, springs, shoes, centrifrugal type.
5. Chain Brake: Band, handle, activation mechanism, spring.

CAUTION! Always match chain pitch and gauge to guide bar. Worn sprockets accelerate chain and bar wear.

Fuel System Parts

• Fuel Tank: Polyethylene tank, cap, vent.
• Carburetor: STIHL Zama or Walbro, includes diaphragm, gaskets, jets, H & L adjustment screws.
• Fuel Filter: In-tank filter, replace periodically.
• Fuel Lines: Supply and return lines, primer bulb lines (if equipped).
• Air Filter: Felt or mesh element, pre-filter, cover.
• Muffler: Spark arrestor screen, gasket, bolts.
• Decompression Valve: Optional, for easier starting.

Ignition System Parts

Ignition module (coil), spark plug, stop switch, wiring harness.

Ignition Module: Mounts on fan housing, generates spark. Spark Plug: Bosch WSR6F or equivalent, electrode gap 0.5 mm (0.020"). Stop Switch: Grounds ignition to stop engine. Wiring: Connects switch, coil, and optional accessories.

Note: Ignition timing is fixed; module is non-adjustable. Replace if no spark.

Housing & Handle Parts

Fan housing, rear handle, front handle, anti-vibration elements, covers.

1. Fan Housing: Covers cylinder, directs cooling air, mounts ignition.
2. Rear Handle: Includes throttle trigger, throttle lockout, choke lever.
3. Front Handle: Top handle with vibration dampeners.
4. Anti-Vibration System: Rubber mounts, springs, dampers.
5. Side Covers: Clutch cover, chain brake cover, air filter cover.

Tip: Inspect anti-vibration mounts regularly for wear to maintain comfort and control.

Fasteners & Miscellaneous Parts

Screws, nuts, washers, clips, labels, decals.

1. Threaded Fasteners: M5, M6 screws of various lengths, flange nuts, lock washers.
2. Clips & Pins: Retaining clips for handles, throttle linkage, E-clips.
3. Labels & Decals: Warning labels, model identification, bar/chain information.
4. Gaskets & Seals: Cylinder base gasket, muffler gasket, crankcase seals.
5. Springs: Throttle return spring, chain brake spring, starter spring.

WARNING! Use correct torque specifications for all fasteners. Overtightening can strip threads or damage components.

Parts Ordering Information

Use STIHL parts numbers from this manual. Contact authorized STIHL dealer.

Parts Number Format: Typically 4-6 digits, sometimes with suffix. Example: 1123 400 1201 (Cylinder). Always provide model and serial number when ordering. Exploded diagrams in this manual correlate part numbers to components.

Exploded Diagrams Reference

Diagrams show component relationships and part numbers for each assembly.

CAUTION! Refer to diagrams during disassembly to note placement and orientation of parts. Keep small parts organized.

Maintenance & Replacement Guidelines

Regular inspection and replacement of wear parts ensures performance and safety.

Part	Inspection Interval	Replacement Criteria
Air Filter	Every 10 operating hours	Clogged, damaged, or excessively dirty
Spark Plug	Every 50 operating hours	Worn electrodes, cracked insulator
Fuel Filter	Every 3 months or as needed	Restricted flow, discolored
Sprocket	Every 2-3 chains	Visible wear on teeth, sharp edges gone
Guide Bar	Regularly	Uneven rail wear, bent, cracked, or damaged nose
Saw Chain	Daily	Dull cutters, damaged or broken links, low kickback reduction
Chain Brake Band	Annually or if brake fails test	Thickness less than specified, glazed, or cracked

Reset: After parts replacement, check all adjustments (carburetor, idle speed, chain tension).

Troubleshooting Parts Issues

Symptom	Possible Part Failure	Corrective Action
Engine won't start	Fouled spark plug, faulty ignition module, clogged fuel filter	Replace spark plug; test ignition; replace fuel filter.
Loss of power	Clogged air filter, worn piston/cylinder, restricted muffler	Clean/replace air filter; inspect cylinder; clean spark arrestor screen.
Excessive vibration	Worn anti-vibration mounts, unbalanced cutting attachment, loose fasteners	Replace mounts; check chain balance and bar straightness; tighten all fasteners.
Chain won't stay tight	Worn bar groove, stretched chain, damaged bar studs or nuts	Replace bar if groove worn; replace chain; inspect and replace studs/nuts if damaged.
Oil leakage	Cracked oil tank, damaged oil line, worn oil pump seals	Inspect and replace tank, lines, or pump components as needed.

Service: For complex repairs, consult an authorized STIHL servicing dealer. Use only genuine STIHL parts.