Stihl MS 201 Manual
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Stihl MS 201 Manual

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STIH)
STIHL MS 201, MS 201 T
2012-01

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Summary of Contents for Stihl MS 201

  • Page 1 STIH) STIHL MS 201, MS 201 T 2012-01...

  • Page 2: Table Of Contents

    Rope Rotor 11.5 Valve 8.4.1 Rope Rotor with ErgoStart Starter Rope / Grip Tensioning the Rewind Spring Replacing the Rewind Spring © ANDREAS STIHL AG & Co. KG, 2012 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 3 12.10.1 Pickup Body 12.10.2 Fuel Suction Hose 12.10.3 Tank Vent Hose 12.10.4 Manual Fuel Pump with Fuel Hoses 12.11 Tank Housing Removing and Installing Special Servicing Tools Servicing Aids MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 4: Introduction And Safety Precautions

    Collect fuel or lubricating oil in a they, depending on the machine, clean container and dispose of it may damage housings when the properly in accordance with local machine is clamped in position. environmental regulations. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 5: Safety Precautions

    Run the machine only with the fan housing mounted in position – there is otherwise a risk of injury from the flywheel and a risk of engine damage due to overheating. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 6: Specifications

    9.5 (+/2.0) cm /min 9.5 (+/2.0) cm /min at 10,000 rpm at 10,000 rpm Ematic: 6.5 (+/1.5) cm /min 6.5 (+/1.5) cm /min at 10,000 rpm at 10,000 rpm MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 7: Tightening Torques

    10.0 2) 3) (tightening first screw) Collar stud M 5x18 Bar mounting / crankcase 2) 3) M 8x1 Flywheel / crankshaft 23.0 Screw P 4x10 Insulating plate (MS 201) MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 8 Power screwdriver setting for polymer: DG and P screws max. 500 rpm Do not use an impact wrench for releasing or tightening screws. Do not mix up screws with and without binding heads. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 9: Troubleshooting

    Clutch springs stretched Replace all clutch springs Clutch shoe retainer broken Install new retainer or clutch Clutch shoes and carrier worn Install new clutch Needle cage damaged Fit new needle cage MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 10: Chain Drive, Chain Brake, Chain 7. Tensioner

    Brake spring stretched or broken Fit new brake spring immediately when brake is activated Brake band stretched or worn Fit new brake band Clutch drum worn Install new clutch drum MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 11: Chain Lubrication

    Install new oil suction hose damaged Crankcase cracked Install new crankcase Oil pump delivers insufficient oil Oil pump damaged or worn Install new oil pump Worm driver is loose Install new worm MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 12: Rewind Starter

    Replace pawls themselves are worn Spring loop not attached to carrier Attach spring loop to carrier Spring (ErgoStart) broken Replace spring, check carrier and rope rotor, replace if necessary MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 13 (spring hydrocarbons), then pull rope windings frozen together) carefully several times until normal action is restored MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 14: Ignition System

    Check ignition lead / module, replace ignition module if necessary. Check operation of spark plug, clean or replace spark plug if necessary. Crankcase damaged (cracks) Install new crankcase MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 15: Carburetor

    Fit new metering diaphragm hardened or swollen Tank vent faulty Fit new tank vent Leak in fuel hose from tank to Seal connections or install new fuel carburetor hose MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 16 Fuel tank damaged Install new fuel tank Pump diaphragm, metering Replace pump diaphragm, diaphragm or diaphragm gasket metering diaphragm or diaphragm faulty gasket MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 17 – key in flywheel has sheared off Engine running extremely rich, has Choke shutter does not open Check carburetor and choke shaft, no power and a very low maximum service or replace if necessary speed MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 18: Engine

    Air inlet in fan housing dirty Clean air inlet on fan housing MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 19: Clutch

    : Push the locking strip (1) 1145 893 5900 into the cylinder as far as stop. : Apply wrench to hexagon (arrow) and unscrew the clutch (1) – left- hand thread. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 20: Clutch Drum

    : Fit the clutch drum (1) so that it engages the worm gear (arrow). – Install the clutch, b 4.1 – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 21: Chain Brake

    (arrow) and lift it away. of a second). If the chain brake does not operate properly, refer to troubleshooting, b 3.2. : Pry the brake band (1) out of its seat (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 22: Brake Lever

    The brake spring is now relaxed. : Use the assembly tool 1117 890 0900 to disconnect the brake spring (1) from the anchor pin (arrow). – Remove the brake spring from the brake lever. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 23 – Clean all disassembled parts, same time. b 14 : Push the brake lever (1) into the hand guard and line up the holes. : Fit the E-clip (1). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 24: Flat Spring

    (1) out of its seat. : Use the assembly tool (2) Check and replace if necessary. 1117 890 0900 to attach the brake spring (1) to the anchor pin (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 25: Chain Tensioner

    Loctite, b 14 : Position the new pin (1) in the bore (arrow) so that the knurling on the pin meshes with the existing knurling in the bore. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 26: Chain Catcher

    – Fit the screws and tighten them down firmly. – Disengage the chain brake and remove the sprocket cover. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 27 – Remove the collar nut. This flares the end of the new collar nut and secures it in the sprocket cover. – Unscrew the special tool from the collar nut. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 28: Engine

    – Reassemble all other parts in the reverse sequence. : Take out the screws (1). : Pull out the muffler (2), check it and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 29: Insulating Plate

    : Take out the screws (1) and home as far as stop. loosen screw (2). : Insert and tighten down the : Swing annular buffer (3) screw (2) firmly. clockwise out of the way. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 30: Leakage Test

    : Fit the test flange (1) The recesses (arrows) must fit over 5910 855 4201. the bushings. Screw (1) must be in place – it seals : Fit the screws (2). the impulse hose. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 31: Vacuum Test

    – After finishing the test, push the insert and tighten down the ring to the right to vent the pump. screws (3) firmly. – Continue with pressure test, b 6.2.3 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 32: Pressure Test

    – Install the carburetor, MS 201 b 12.4, : Apply puller (1) 5910 890 4400. MS 201 T b 12.5 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 33: Clutch Side

    – Remove the clutch, b 4.1 – Remove the clutch drum, b 4.2 – Remove the oil pump, b 11.4 : Fit the installing sleeve (1) 1145 893 4600. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 34: Cylinder

    – no signs of damage; also check the sealing faces on the Take care not to displace or exhaust and inlet ports. damage the cylinder gasket. : Take out the screws (arrows). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 35: Crankcase

    – they might otherwise break. : Slide the cylinder (1) over the piston, the clamping strap moves downwards at the same time. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 36 : Back off the spindle (1) in the puller until it is clear of the crankshaft stub. Locate the service tool so that the spindle is centered on the crankshaft stub. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 37: Crankshaft

    (arrows) – b 6.4 the gasket is now held in position. – Reassemble all other parts in the – Coat the straight stub of the reverse sequence. crankshaft with oil. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 38: Roller Bearings

    : Check and clean the crankcase or replace if necessary, b 14 If this half of the crankcase is in order, install a new roller bearing. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 39: Piston

    : Check and clean the crankcase crankcase, b 6.5 or replace if necessary, b 14 If this half of the crankcase is in order, install a new roller bearing. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 40 (2) so that the snap ring – Lubricate the needle cage with oil gap is on the flat side of the tool's and push it into the connecting shank (arrow). rod. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 41 Use a suitable base. Make sure the tool is held square on the piston pin axis. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 42: Piston Rings

    (arrows) – Reassemble all other parts in the clean. reverse sequence. : Install the new piston rings in the grooves so that the radii face upward (arrows). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 43: Ignition System

    A new ignition module must be installed if no ignition spark is obtained (after checking that the wiring and switch shaft are in good : Remove the cover (1). condition). MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 44 : Pull the ignition lead (1) into the clutch side until the first mark – Check the spark plug boot and (arrow) is visible at the guide. replace if necessary, b 7.4 – Troubleshooting, b 3.5 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 45 – Check operation – Rotate the flywheel and make sure it does not touch the ignition : The wiring harness (1) must be module. positioned in the crankcase recess. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 46: Testing The Ignition Module

    The engine may start and accelerate during the test. – Reassemble all other parts in the reverse sequence. If a spark is visible, the ignition system is in order. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 47: Spark Plug Boot

    : Pull the two retainers (1) off the ignition lead. – Check ignition lead, replace ignition module if necessary, b 7.2 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 48: Flywheel

    7.2 : Remove the puller (3) 5910 890 4504 from the flywheel. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 49: Testing

    : Take out the screw (1) and "F". remove the AV spring (2). The resistance measured must be infinitely high. If not, replace the wiring harness, MS 201 b 7.6.2, MS 201 T b 7.6.3. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 50 : Pull the ground wire (1) out of the guides (arrows). : Pull the wiring harness (1) out through the hole (arrow). – Check the wiring harness and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 51 : Push the ground wire (1) through the hole (arrow). : Insert and tighten down the screw (1) firmly – the wiring harness is held in position. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 52: Installing (Ms 201 T)

    – Install the ignition module, b 7.2 : Pry out the grommet (1). : Pull the short circuit wire (1) out of the guide (arrow). : Disconnect terminals (2) and (3). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 53: Ground Wire

    – Fit the contact springs, b 7.6.6 – Fit AV spring in the oil tank, b 9.2 – Install the switch lever, b 10.1.2 – Install the lockout lever and throttle trigger, b 10.3 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 54: Contact Spring

    (1) into the guide (arrow) while pressing it down slightly on the contact loop (3) and lifting it over the lateral guide – no more than 2 mm. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 55: Contact Springs

    – narrow terminal on narrow contact spring. : Pull contact spring (1) of short circuit wire (2) and contact spring (3) of ground wire (4) out of guides (arrows). MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 56 (arrow) on the switch shaft (3) in position "0". – Install the lockout lever and throttle trigger, b 10.3 – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 57: Ignition System Troubleshooting

    – If necessary, install new spark plug boot and/ or leg spring, b 7.4 Test ignition system: with ZAT 3 or ZAT 4 (use ZAT 3 as main spark gap see TI 32.94), b 7.3 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 58 – Check resistance of ignition lead (spark plug boot and ignition module removed) Spec.: < 10 Ω, If necessary, install new spark plug boot and/or ignition module, b 7.4 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 59 – Look for fault in fuel system or no further action necessary carburetor – Check engine for leaks – Check position of flywheel on crankshaft, b 6.2, b 7.5 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 60: Rewind Starter

    – Reassemble all other parts in the – Relieve tension of rewind spring, reverse sequence. b 8.4 Models with ErgoStart – Relieve tension of rewind spring, b 8.4.1 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 61: Pawls

    – Reassemble all other parts in the outwards. reverse sequence. : Push the bearing pin (2) of pawl (1) into its seat (arrow). – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 62: Rope Rotor

    – Tension the rewind spring, b 8.6 : Remove the washer (1). : Remove the washer (1) and carrier (2). – Reassemble all other parts in the Rewind spring must be relaxed. reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 63: Starter Rope / Grip

    – Remove any remaining rope from the rope rotor. The recess in the hub of the rope rotor is the anchor point for the Do not shorten the starter rope. spring. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 64 : Thread the starter rope (1) and remaining rope (arrow) out of through the guide bushing (small the grip. arrow). – Check individual parts, replace if necessary Do not shorten the starter rope. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 65: Rewind Spring

    – Remove the fan housing and the segment, b 8.2 The pawl(s) and spring clip must be : Thread the starter rope (1) installed. through the guide bushing (small arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 66: Replacing The Rewind Spring

    (2) out of the fan housing. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 67 – Install the rope rotor, b 8.4.1 – Install the pawls, b 8.3 – Tension the rewind spring, b 8.6 – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 68: Av Elements

    : Take out the screws (1). – Reassemble all other parts in the reverse sequence. : Pull the annular buffer (2) out of the recess, inspect it and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 69: Av Spring On Oil Tank (Ms 201)

    : Insert and tighten down the screw (1) firmly. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 70: Av Spring On Oil Tank (Ms 201 T)

    (1) firmly. : Take out the screws (1). : Push bearing plug (1) with lug into recess (arrow) in crankcase : Remove covers (2) and (3). as far as stop. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 71: Front Handle / Av Spring (Ms 201)

    – Reassemble all other parts in the : Insert and tighten down the reverse sequence. screw (3) firmly. : Pull the handlebar (1) out of its seat (arrow) and lift it away. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 72: Front Handle

    : Pull the bearing plug (2) out of its seat. – Remove the handle molding and switch shaft, b 10.3 : Push the handlebar (1) into its seat (arrow). – Insert screw and tighten it down firmly. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 73: Housing (Ms 201)

    – Reassemble all other parts in the reverse sequence. : Take out the screws (1). : Insert and tighten down the screw (1) firmly. : Remove covers (2) and (3). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 74: Stop Buffer On Tank Housing (Ms 201)

    : Push the stop buffer (1) into its seat until the lug is firmly seated in the opening (arrow). : Lift the handle housing (1) slightly. : Pry out and replace the stop buffer (2). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 75: Control Levers

    10.2 : Disconnect terminal (1) of short (arrow) until it snaps into position. circuit wire (2). – Inspect the switch shaft and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 76: Switch Shaft (Ms 201 T)

    (4) first, into the bar and chain. pivot mount (arrow) – the integral contact pin (5) must face the – Remove the handle molding, handlebar. throttle trigger and lockout lever, b 10.3 MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 77: Throttle Trigger / Lockout Lever (Ms 201)

    – Remove the throttle rod, b 10.3.1 Installing : Pull the lockout lever (1) out of its mounts (arrows). : Fit and connect torsion spring (1) – note installed position (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 78: Throttle Trigger / Lockout Lever (Ms 201 T)

    (2) under the projections : Fit and connect torsion spring (1) (arrows). – note installed position (arrow). – Push down the handle molding until it snaps into position. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 79: Choke And Throttle Rods (Ms 201)

    – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 80 – Reassemble all other parts in the reverse sequence. : Hold the choke rod (1) so that its angled portion (arrow) is in the carburetor box. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 81: Choke And Throttle Rods (Ms 201 T)

    – there is no need to remove the fuel suction hose. : Push the double lever (1) onto the pin (2) as far as stop. The throttle trigger and lockout lever may pop out. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 82 (1) onto the pivot pin (4) as position as far as stop. far as stop. – Install the filter base, b 12.3.1 : Attach the throttle rod (arrow) to the double lever. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 83: Handle Housing (Ms 201)

    – Remove annular buffer from the fuel tank, b 9.1 : Pull the impulse tube (1) out of its seat (arrow) in the handle housing. : Pull out the clamping block (1). MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 84 10.1.1 : Lift the handle housing (1) a little and pull the tank vent hose (2) and fuel suction hose (3) through the opening (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 85 STIHL press fluid, b 14 : Push the fuel suction hose (1), tab first, into its seat (arrow) in the handle housing. : Pull the manifold (1) into position and remove the string. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 86 : Hold the retainer (1) in that fluid, b 14 position. : Push the grommet (1) into the opening (arrow) until it is properly seated and the peg (2) is firmly located in the hole. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 87: Handle Housing (Ms 201 T)

    : Turn the handle housing (1) over and pull the impulse tube (2) out – Remove the tank vent, b 12.9 of its seat (arrow) in the handle housing. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 88 12.9 handle housing. : Check the impulse hose (2) and replace if necessary, b 12.8.1 : Check the intake manifold (3), b 12.8, replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 89 : Push the contact spring (1) of ground wire (2) into the guides (arrows). : Pull the manifold (1) into position and remove the string. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 90: Chain Lubrication

    : Push the oil suction hose (1), : Use a suitable tool to pry out the pickup body first, through the connector (1). housing bore (arrow). – Check the connector and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 91: Oil Pump

    (2). the stub (arrow) is properly seated in the connector's : Check the oil pump (1) and bore (2). replace if necessary MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 92: Valve

    – Fit the screws and tighten them down firmly. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 93 – Inspect the bore and clean it if necessary. : Installed depth of new valve: a = about 1.5 mm – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 94: Repair Fuel System

    : Remove the air filter (1). – Check air filter and clean or replace as necessary – see MS 201 instruction manual. – Reassemble in the reverse sequence. : Remove the filter base (1). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 95: Filter Base (Ms 201 T)

    – Coat O-ring with STIHL press : Disconnect the throttle rod (1) fluid, b 14 from the trigger (arrow). : Push the filter base (1) into position. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 96 : Turn the carburetor (1) slightly and attach the throttle rod (2) to the lower opening (arrow) in the : Turn the carburetor (1) slightly lever (3). and disconnect the choke rod (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 97: Carburetor (Ms 201 T)

    (arrow). – Push carburetor into position until it locates against the manifold. : Connect the throttle rod (1) to the trigger (arrow). – Fit the handle molding, b 10.2 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 98 (arrow). and disconnect the choke rod – Check the individual parts and (arrow). – Push carburetor into position until replace if necessary. it locates against the manifold. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 99: 12.5.1 Leakage Test

    (2) 0000 855 9200. : Push the fuel hose with nipple onto the stub (arrow). Throttle rod (1) is prevented from falling out by rib (2). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 100: Servicing The Carburetor

    MS 201 T b 12.3.1 stresses and eventually shows signs of fatigue, i.e. the diaphragm distorts and swells and has to be – Reassemble all other parts in the replaced. reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 101: 12.6.2 Inlet Needle

    : Take out the screw (1). – Install the metering diaphragm, b 12.6.1 : If there is an annular indentation (arrow) on the sealing cone of the inlet needle, fit a new inlet needle. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 102: 12.6.3 Pump Diaphragm

    : Fit the new gasket (1) so that the contours (arrows) match and it is held in position by the pegs (2). : Carefully separate the pump diaphragm (1) and gasket (2) MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 103: 12.6.4 Lever On Throttle Shaft

    : Remove the torsion spring (4). : Take out the screw (1) and pull off the lever (2). – Check individual parts, replace if necessary – Inspect the lever and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 104: Adjusting Screws

    (arrows) engage the recesses in the detent lever. : Hold the lever (1) steady, insert and tighten down the screw (2) firmly. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 105 (H) to remove the old removed before the screw is polymer segment. removed. – Take out the high speed screw ( H). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 106: Adjusting The Carburetor

    (arrow) – do not push fully home. The basic setting is performed through the pre-installed limiter cap with screwdriver 5910 890 2306. – Reassemble in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 107 (1) counterclockwise as far as stop – the notch (arrow) is at 3. Use the idle speed screw (LA) the top. to set the engine speed again to 3,300 rpm. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 108: Standard Setting

    1 full turn. behavior. If the setting is made too lean there is a risk of engine damage as a result of lack of lubrication and overheating. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 109: Intake Manifold

    : Position the cover (1) so that the : Push the impulse hose (1) to one holes (arrows) are in line with the side. pegs (2) and fit it over the manifold. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 110: 12.8.1 Impulse Hose

    MS 201 T, b 12.5 – Reassemble all other parts in the reverse sequence. : Pull the impulse hose (1) off the nipple (arrow). – Check the impulse hose and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 111: Tank Vent

    (arrow). MS 201 T, b 10.5 – Install the carburetor. MS 201 b 12.4, MS 201 T b 12.5 – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 112: Tank Vent (Ms 201)

    (arrow) MS 201 b 12.4, (arrow) as far as stop. – pressurize the fuel tank. MS 201 T b 12.5 – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 113: Tank Vent (Ms 201 T)

    (arrow) as far as stop. : Use hook (2) 5910 893 8800 to – Reassemble all other parts in the remove the pickup body (1) from reverse sequence. the fuel tank. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 114 (arrow) and the fuel suction hose (2) the guide. : Push the elbow connector (1) with fuel suction hose (2) into fuel suction hose (3) as far as stop. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 115: 12.10.3 Tank Vent Hose

    (2) and fuel return hose (3) clear of its seat (arrow) and pry it out. : Pry out the grommet (1), check it and replace if necessary. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 116 (2) into the against the elbow connector. fuel return hose (3) – the two lugs (arrows) must locate flat against the elbow connector and mesh with each other. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 117: Manual Fuel Pump With Fuel Hoses

    : Lift elbow connector (1) with tank the fuel pump (1) with fuel hoses. vent hose (2) and fuel return hose (3) clear of its seat (arrow) and pry it out. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 118 : Push the fuel pump (1) into its onto the long nipple (2) so that seat until the tabs snap into the flange locates against the tab position. (arrow). MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 119: Tank Housing Removing And Installing

    (2) out of the guide (arrow). Only transfer those parts from the old tank housing that are not included with the replacement – see parts list. MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 120 (arrow) is above the intake port. : Insert and tighten down the screw (3) firmly. – Reassemble all other parts in the reverse sequence. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 121: Special Servicing Tools

    5910 850 1650 Clamping machine to assembly stand stand Ignition system tester, ZAT 4 5910 850 4503 Testing ignition system Ignition system tester, ZAT 3 5910 850 4520 Testing ignition system MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 122 Add-on for screwdriver (adjusting carburetor) Hook 5910 893 8800 Removing pickup body Installing tool 5910 893 9600 Removing and installing collar nut in sprocket cover Remarks: 1) Use for releasing only. MS 201, MS 201 C, MS 201 T, MS 201 TC...

  • Page 123: Servicing Aids

    250 °C (482 °F) (50 ml bottle) Standard commercial solvent- Cleaning sealing faces and carburetor, based degreasant containing no crankshaft stubs and flywheel taper chlorinated or halogenated hydrocarbons MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 124 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 125 MS 201, MS 201 C, MS 201 T, MS 201 TC...
  • Page 126 englisch / english 0455 577 0123. VA0.B12. Printed in Germany...

This manual is also suitable for:

Ms 201 t

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