STIHL MS210 Manual

The STIHL MS210 is a lightweight, professional-grade chainsaw designed for occasional users and homeowners. It features a powerful 2-stroke engine with STIHL anti-vibration system, Quickstop® inertia chain brake, Ematic™ lubrication system, and easy-start technology. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Engine with decompression valve, anti-vibration handles, side-access chain tensioner, transparent fuel tank, and tool-free air filter cover.

Feature	Description
Engine Power	2.0 kW (2.7 bhp) displacement
Guide Bar Length	Typically 14" to 16" (35-40 cm)
Chain Brake	Quickstop® inertia-activated
Anti-Vibration	STIHL advanced damping system
Lubrication	Ematic™ automatic oiling with manual override
Starting	Easy-start system with decompression valve
Weight	Approx. 4.6 kg (10.1 lbs) without bar & chain
Fuel Tank	0.33 L (11.2 fl oz) capacity
Oil Tank	0.20 L (6.8 fl oz) capacity
Chain Pitch	3/8" PM3 (Picco Micro 3)

Safety Information

Read all instructions before use. Wear protective gear: helmet, goggles, gloves, chainsaw chaps, and steel-toe boots.

1. Keep bystanders at least 15 feet away.
2. Never operate above shoulder height.
3. Always engage chain brake when carrying or not cutting.
4. Use proper grip: left hand on front handle, right on rear.
5. Ensure chain is sharp and properly tensioned.

WARNING! Risk of kickback! Never cut with the tip of the bar. Always hold saw firmly with both hands.

Assembly & Preparation

Unpack and inspect contents. Assemble guide bar and chain.

1. Attach guide bar: Remove side cover, position bar over studs, align chain drive links with sprocket.
2. Install chain: Ensure cutting teeth face forward on top of bar.
3. Tension chain: Use side-access wheel; pull up bar tip while tightening.
4. Mix fuel: Use STIHL 2-stroke oil at 50:1 ratio (2% oil). Shake well.
5. Fill tanks: Add fuel mix to fuel tank, chain oil to oil tank.

CAUTION! Use only STIHL-approved oils and fuels. Do not use automotive oil.

Specifications

• Engine Type: Single-cylinder 2-stroke air-cooled.
• Displacement: 34.6 cc.
• Power Output: 2.0 kW at 9,000 rpm.
• Max Engine Speed: 13,500 rpm.
• Idle Speed: 2,800 rpm.
• Fuel Consumption: Approx. 510 g/kWh.
• Sound Pressure: 99 dB(A).
• Vibration Levels: Left handle 4.2 m/s², right handle 5.8 m/s².
• Warranty: 1 year residential use.

Controls and Components

Main components: Front handle with chain brake, rear handle with throttle trigger, master control lever, decompression valve, fuel cap, oil cap.

Master Control Lever (3 positions): STOP (0), RUN (I), START/CHOKE (⏻).

Chain Brake: Manual activation via front hand guard; inertia-activated during kickback.

Throttle Trigger Lockout: Must be depressed before throttle can be engaged.

Decompression Valve: Reduces compression for easier starting.

Starting & Stopping

Cold Start:

1. Set master control to START/CHOKE (⏻).
2. Press decompression valve (if equipped).
3. Place saw on ground, hold rear handle with right foot.
4. Pull starter rope briskly until engine fires.
5. Move master control to RUN (I).
6. Pull starter rope again to start.
7. Blip throttle to disengage fast idle.

Warm Start: Master control directly to RUN (I).

Stopping: Move master control to STOP (0).

Operating Instructions

Basic cutting techniques for felling, limbing, and bucking.

1. Felling: Plan escape path. Make notch cut 1/3 into tree. Make felling cut opposite notch.
2. Limbing: Work from trunk outward. Support saw with trunk.
3. Bucking: Cut from top when log supported on both ends. Use undercut when log on ground.
4. Kickback Prevention: Maintain firm grip, avoid tip contact, use reduced-kickback chain.

Tip: Let chain do the work; don't force the saw. Keep chain speed high during cuts.

Maintenance Schedule

Daily/Before Use: Check chain tension, sharpness, lubrication. Clean air filter. Inspect for damage.

Weekly: Clean cooling fins, check spark plug, clean fuel filter.

Monthly: Clean chain brake mechanism, check anti-vibration elements.

Annually: Replace fuel filter, spark plug. Have dealer check carburetor adjustment.

WARNING! Always disconnect spark plug before maintenance.

Chain & Bar Care

Chain sharpening: Use round file (4.0 mm) at 30° angle. File all cutters evenly.

Bar maintenance: Clean bar groove weekly. Flip bar monthly for even wear.

Lubrication: Use STIHL chain oil. Adjust oil flow with screw near oil cap.

CAUTION! Wear gloves when handling chain. Chain is extremely sharp.

Storage

Long-term storage (over 30 days):

1. Drain fuel tank completely.
2. Run engine until it stops to clear carburetor.
3. Remove chain, clean and oil it.
4. Store in dry place, cover to prevent dust.

WARNING! Never store with fuel in tank. Fuel deteriorates and can damage engine.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No spark, flooded, old fuel	Check spark plug, use fresh fuel mix, follow starting procedure.
Engine runs then dies	Clogged fuel filter, air leak	Replace fuel filter, check fuel lines.
Chain doesn't turn	Brake engaged, clutch worn	Disengage chain brake, inspect clutch.
Poor cutting performance	Dull chain, improper tension	Sharpen chain, adjust tension.
Excessive vibration	Loose components, worn AV mounts	Tighten all bolts, check anti-vibration elements.
Chain throws oil	Over-oiling, wrong oil viscosity	Adjust oiler, use proper chain oil.

Service: For repairs, contact authorized STIHL dealer. Do not attempt major repairs yourself.

Support: STIHL USA, 1-800-467-8445, www.stihlusa.com