Stihl MS 251 Support Question
Stihl MS 251 Support Question
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Question posted by oscarsunset on May 25th, 2020
What Is The Correct Parts Number For A Flywheel On A Stihl 251 Cb-e
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Request from oscarsunset on May 25th, 2020 7:01 PM
What more could I say, I'm looking for a good part number for said flywheel. Is this a real deal or not?
What more could I say, I'm looking for a good part number for said flywheel. Is this a real deal or not?
Current Answers
Answer #1: Posted by freginold on May 25th, 2020 7:42 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,895
Member since:
December 20th, 2011 Points: 23,253,895
According to DIY Spare Parts, the flywheel part number for a Stihl MS 251 CBE is 1143 400 1233.
Related Stihl MS 251 Manual Pages
Instruction Manual - Page 2
... Pump 85
12.5 Carburetor
88
12.5.1 Leakage Test
89
RA_737_00_01_01
MS 231, MS 231 C, MS 251, MS 251 C
q
© ANDREAS STIHL AG & Co. Models with
QuickStop Super
24
5.4.1 Adjusting
the...
45
7.4 Testing the
Ignition Module
47
7.5 Spark Plug Boot /
Ignition Lead
48
7.6 Flywheel
49
7.7 Short Circuit Wire
50
7.7.1 Testing
50
7.7.2 Removing and
Installing
50
7.7.3 Ground...
Instruction Manual - Page 4
...in the "STIHL Special Tools" manual.
To help locate the fault, consult the chapter on "Troubleshooting" and the "STIHL Service Training... publication of movement
@ 4.2 =Reference to check the part numbers of the individual components and assemblies. Engage the bar ...be taken that is not shown in this power tool. MS 231, MS 231 C, MS 251, MS 251 C
3 A fault on the machine, may have been...
Instruction Manual - Page 5
... to overheating.
4
MS 231, MS 231 C, MS 251, MS 251 C The specifications must be performed outdoors only. do not use original STIHL replacement parts.
Always use sharp-edged pliers, screwdrivers, etc. Do not smoke or bring any fire, flame or other serious injuries. All work with the connector, preferably by the STIHL part number, the { logo and the STIHL parts symbol K This...
Instruction Manual - Page 13
... spring clip correctly
Guide pegs on pawls or pawls themselves are worn
Fit new pawls
Torsion springs on flywheel fatigued, pawls... worn or sticking
Clean seats on pawls or replace pawls and torsion springs if necessary
Lugs on carrier worn
Install new carrier
Spring loop in spring housing fatigued Install new spring housing
12
MS 231, MS 231 C, MS 251, MS 251...
Instruction Manual - Page 15
... plug if necessary.
14
MS 231, MS 231 C, MS 251, MS 251 C Check operation of switch shaft/ contact spring and ignition module Damaged insulation or break in ignition lead or short circuit. too much oil
Use correct mixture of fuel and oil
Incorrect air gap between ignition Set air gap correctly module and flywheel
Flywheel cracked or damaged or pole...
Instruction Manual - Page 18
... body
Fuel strainer dirty
Clean fuel strainer in flywheel has sheared off
Install new flywheel
Engine running extremely rich, has Choke shutter does not open no power and a very low maximum speed
Check carburetor and choke shaft, service or replace if necessary
MS 231, MS 231 C, MS 251, MS 251 C
17 key in carburetor, replace if necessary
Leak...
Instruction Manual - Page 27
...: Attach the spring (1) to the brake lever (arrow).
26
MS 231, MS 231 C, MS 251, MS 251 C Troubleshooting, b 3.2
- If this is visible.
: Attach ...drum must rotate freely.
- Reassemble all other parts in the brake spring's anchor pin is ... on the coasting brake even though the brake band is necessary to guarantee correct operation of the brake cable.
- Adjust the brake cable, b 5.4.1
...
Instruction Manual - Page 28
... with brake cable.
- Take care not to increase free travel .
: When the setting is correct,
tighten down the lockout lever (1) and hold it .
- Disconnect the brake spring,
b 5.4
...Check the brake cable (1) and retainer (2), replace if necessary
MS 231, MS 231 C, MS 251, MS 251 C
27 Reassemble all other parts in that position. Turn adjusting screw clockwise
to stretch the hose...
Instruction Manual - Page 30
Reassemble all other parts in the guide (arrow).
- Check position of fuel hose and correct if necessary, b 12.11.2
- Install the throttle trigger, b 10.3
MS 231, MS 231 C, MS 251, MS 251 C
29 Check position of fuel return hose and correct if necessary, b 12.11.3
- Install the switch lever, b 10.3.1
- Lift the tank housing and secure it into the adjusting...
Instruction Manual - Page 31
...(1) so that it lines up with
STIHL multipurpose grease, b 14
- Reassemble in the reverse sequence.
- 22
4
1
5.5.2 Chain Catcher
- Clean all disassembled parts, b 14
- Reassemble in the ...MS 231 C, MS 251, MS 251 C
If the chain catcher is damaged or worn, install a replacement chain catcher.
2310RA045 TG
5.5.1 Quick Chain Tensioner
The quick chain tensioner is an integral part...
Instruction Manual - Page 36
...MS 231 C, MS 251, MS 251 C
35
Remove the installing sleeve (1).
1
2
2310RA082 TG
Soft oil seal with its seat by
tapping it with snap ring for replacement on closed engine. Hard oil seal without snap ring for replacement on opened engine. jaws (No. 6) 0000 893 3711.
Degrease the crankshaft taper, b 14
- Reassemble all other parts...Installing -
Remove the flywheel, b 7.6
1...
Instruction Manual - Page 38
... b 12.4
2310RA092 TG
MS 231, MS 231 C, MS 251, MS 251 C
37 Remove the tank housing, b 12.11.5
2310RA089 TG
2310RA091 TG
: Use a drift (2) to be in the reverse sequence.
- Remove the flywheel, b 7.6
- All... other parts in perfect
condition. 2310RA083 TG
6.5 Engine
- If the sealing faces are
damaged, replace the part concerned, b 3.7.
: Remove the retaining ring (1).
-
Instruction Manual - Page 45
...- Carefully fit the piston rings over the piston - Install the engine, b 6.5
44
MS 231, MS 231 C, MS 251, MS 251 C Remove the piston, b 6.8
- Remove the piston rings from the piston.
5902RA162 TG... piston rings and replace if necessary, b 6.9
- Reassemble all other parts in the piston grooves (arrows).
: Check correct installed position of old piston ring to scrape the grooves (arrows) clean...
Instruction Manual - Page 49
... away from the ignition lead.
- Keep fingers or other parts of the spark plug boot with the rewind starter and check spark in the center of the leg spring into the spark plug boot.
48
MS 231, MS 231 C, MS 251, MS 251 C Crank the engine quickly with STIHL press fluid, b 14
: Hold the ignition lead and leg...
Instruction Manual - Page 50
... spark plug boot must not be free from its tapered seat.
Reassemble all other parts in the crankshaft.
-
Reassemble all other parts in the reverse sequence.
2310RA110 TG
0001RA167 TG
2310RA422 TG
1
The flywheel and magnet poles (arrows) must not touch the air guide shroud.
- MS 231, MS 231 C, MS 251, MS 251 C
49 Replace flywheel if necessary.
: Unscrew the...
Instruction Manual - Page 59
...
- Before installing, lubricate the rewind spring and starter post with STIHL special lubricant, b 14.
: Take out the screw (1) with...drops of the segment (1) to the holes on the other parts in position.
: Insert screw (1) with dirt.
Examine the... and fit the fan housing in the reverse sequence.
58
MS 231, MS 231 C, MS 251, MS 251 C Lift the hand guard a little and remove the fan...
Instruction Manual - Page 61
... loop (2) of the flywheel as far as stop by the torsion springs.
1
4
3 21
: Remove the circlip (1). : Remove the the washer (2) and
carrier (3). : Pull off the pawls (1) and remove
the torsion springs. - the pawls must always be
relieved before assembling.
1
- Reassemble all other parts in the reverse sequence.
60
MS 231, MS 231 C, MS 251, MS 251 C 8.4 ErgoStart
Installing...
Instruction Manual - Page 62
...remaining rope from the rotor, b 8.6
- Fit the cover washer. Reassemble all other parts in rope rotor with STIHL special lubricant, b 14
Installing
- Remove the starter rope or remaining rope from
the rope...if necessary.
- Do not shorten the starter rope.
2310RA212 TG 2310RA214 TG
- MS 231, MS 231 C, MS 251, MS 251 C
61
Remove the fan housing and the segment, b 8.2
Models with the ...
Instruction Manual - Page 64
... the starter grip (1) firmly to keep the rope tensioned.
- MS 231, MS 231 C, MS 251, MS 251 C
63 If this is not the case, reduce spring tension since...the fan housing and the segment, b 8.2
2310RA226 TG
: Let go of STIHL special lubricant before maximum spring tension is reached. If the rewind spring can rewind ...parts in a spring housing, comes ready for installation.
If this process.
Instruction Manual - Page 113
Description
Part No.
1 STIHL multipurpose grease
0781 120 1109
2 Lubricating grease (225 g tube) 0781 120 1111
3 STIHL special lubricant
0781 417 1315
4 STIHL press fluid OH 723 5 Dirko HT red sealant
0781 ...chlorinated or halogenated hydrocarbons
Cleaning sealing faces and carburetor, crankshaft stubs and flywheel taper
112
MS 231, MS 231 C, MS 251, MS 251 C 14. Servicing Aids
No.
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