Stihl MS 250 Support Question
Stihl MS 250 Support Question
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Question posted by wiggymac on November 4th, 2013
My Stihl Ms 250c Will Not Start!
The is no tension when pulling starter rope.
Current Answers
Answer #1: Posted by salvagedrover on November 22nd, 2013 10:28 PM
salvagedrover
Member since:
November 22nd, 2013 Points: 7,920
Member since:
November 22nd, 2013 Points: 7,920
You will need to remove the muffler in order to inspect the piston for scoring. Chances are, you have 8mm nuts securing the muffler to removable studs. Remove these and slide the studs sideways out of their retaining slots. You should see the piston through the opening of the exhaust port. If there is any vertical burning/scoring, I'm afraid your cylinder and piston are no good and you will need to replace them, which in many cases, approaches the cost of a new saw. This is a common occurance where people will run too lean, (more fuel than lubricating oil,) of a fuel/oil mix in the machine, and especially with a machine like a chainsaw under high stress and high RPMs, it's easy to destroy the top end of your engine quickly. Make sure you use only STIHL brand oils and a high quality, brand name fuel in your machines, and you will have no problems for many years to come. Also, rememer to start your machine, and drain the fuel before storage of over 3 weeks and allow it to idle until it shuts off, to prevent a buildup of corrosive white powder and gummy fuel inside of the carburetor and a costly repair!
Related Stihl MS 250 Manual Pages
Product Instruction Manual - Page 3
...Starting / Stopping the Engine
35
Operating Instructions
39
Taking Care of the Guide Bar
40
Air Filter System
41
Cleaning the Air Filter
41
Engine Management
42
Adjusting the Carburetor
42
Spark Plug
44
Engine Running Behavior
45
Replacing the Starter Rope... or even fatal injury.
{
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
1
© ANDREAS STIHL AG & Co. For further ...
Product Instruction Manual - Page 8
... correctly positioned for installation
N To return the cap to your authorized STIHL dealer for repair.
001BA227 KN
001BA226 KN
001BA220 KN
To do not start or run the engine until it will twist the base of cap in...machine. Check for tightness. Fold the grip flush with the raised positioning
6
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C Insert the cap in closed position.
Product Instruction Manual - Page 9
... STIHL combination wrench or other in tightening slotted fuel filler caps. Before Starting
Take off the chain guard (scabbard) and inspect the saw is (are) tightened securely after tensioning the... end of fire and burn injuries, start the saw with the sprocket cover loose.
Warning! it is running! MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
7 The throttle trigger must match...
Product Instruction Manual - Page 10
... you pull the starter grip, do not use your unit with your legs just above the knees. As soon as the engine is running cutting tool, do not wrap the starter rope around the handles.
8
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C To reduce the risk of the saw firmly with incorrect idle adjustment.
Do not drop start...
Product Instruction Manual - Page 13
.... Warning! Antivibration elements should be replaced, consult your power tool using the starting throttle lock, as to reduce the risk of personal injury in the cut... and disposal of the engine (e.g. MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
11 You may indicate damage, breakage or excessive wear. Warning! Do not operate your STIHL servicing dealer. Accelerating the engine while...
Product Instruction Manual - Page 18
... and may easily catch the chain.
4. Always start a cut more than one log at a time...the nose of the guide bar contact any STIHL chain saw when withdrawing the bar from kickback... you or pull you are not experienced with a correctly sharpened, properly tensioned chain at ...of pull-in the wood. Do not cut because the chain can pinch.
16
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C...
Product Instruction Manual - Page 24
....
Cut only one log at tension side.
Use of your STIHL servicing dealer only. Drag the ...slope, stand on top of a sawhorse. Pull out exposed and cleared logs first. Do not..., or repair of pinching! MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C Shattered wood should work...
2
Use only identical STIHL replacement
parts for rolling logs.
Always start relieving cut (1) at ...
Product Instruction Manual - Page 26
... the Bar and Chain (side chain tensioner)
Removing the chain sprocket cover
N ...STIHL is disengaged. The cutting attachment that comes standard is an audible click - The drive link gauge (2) of the guide bar (3). start at the bar nose.
143BA003 KN
001BA186 KN
24
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C N Pull the hand guarad towards the front handle until the tensioner...
Product Instruction Manual - Page 35
... hand - see "Checking Chain Tension".
-
Every new chain has to 3 minutes. at idling speed
The chain is stopped and locked when the hand guard is activated by an authorized STIHL servicing dealer. Always check chain lubrication and the oil level in the tank before starting
- MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
33 for about 2 to...
Product Instruction Manual - Page 36
...MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C Chain brake maintenance
At temperatures below +50°F (+10°C):
143BA012 KN 208BA005 KN
N Pull the hand guard back toward bar nose).
during a
The chain brake is necessary to l (cold start...your left hand is accelerated toward the bar nose - even if your STIHL servicing dealer, at idle speed, engage the chain brake (push hand ...
Product Instruction Manual - Page 39
.... N Observe safety precautions. MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
37
For this reason there may be a delay of starting .
Machines without additional manual fuel pump: If the engine is already filled with fuel. Guide it slowly back into the housing so that the starter rope can rewind properly. Do not pull out the starter rope to its full...
Product Instruction Manual - Page 47
...
Engine Running Behavior
Replacing the Starter Rope and Rewind Spring
1 2
If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the cause may create arcing that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.
1 1
1
1
N Take out the...
Product Instruction Manual - Page 48
...
78 9
N Remove the spring clip (7). MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
108BA015 KN take care to avoid the risk of injury.
N Carefully remove the rope rotor
with washer (8) and pawls (9). take care to avoid the risk of injury. 135BA036 KN
English Versions with Easy2Start
7 8
9
9
N Remove the spring clip (7). N Pull the knot back into the...
Product Instruction Manual - Page 49
... the starter post - the spring clip must point clockwise as shown in the rotor. N Use a screwdriver or suitable pliers to engage the anchor loop of the rewind spring.
N Thread the new starter rope through the rope guide bushing (from the rotor and starter grip. N Refit the pawls (9) in the illustration.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
47...
Product Instruction Manual - Page 50
... and washer on the crankcase.
N Apply suitable tools (screwdriver, punch, etc.) to carefully install the circlip in the starter post groove. it in position.
48
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C N Reinstall the rope rotor, tension the rewind spring, fit the fan housing and secure it slips out of the arrow.
N Carefully remove the parts...
Product Instruction Manual - Page 58
before starting work after finishing work area, resin-rich wood, tropical wood, etc.), shorten the specified... labels
Replace
1) STIHL recommends a STIHL servicing dealer. 2) Firmly tighten down the cylinder base screws of operation.
If you only use the saw occasionally, extend the intervals accordingly. X X
X X
X
X X
56
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C English
The ...
Product Instruction Manual - Page 60
...'s hands. (not illustrated)
58
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C Guide Bar Nose The exposed end of the guide bar. (not illustrated, see chapter "Tensioning the Saw Chain")
Clutch Couples engine...for the right hand, located at the front of the saw.
20 Starter Grip The grip of the pull starter, for starting the engine.
21 Spark Plug Boot Connects the spark plug with adjusting ...
Product Instruction Manual - Page 66
... Resources Board (CARB) and STIHL Incorporated are based on your 2007 and later small off-road equipment engine. Intake Manifold - Clamps - Deviations from this manual are pleased to explain the Emission Control System Warranty on the application of the recommended 2-stroke fuel-oil
64
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C In California, new...
Product Instruction Manual - Page 68
... Emission Warranty Parts List
Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition...STIHL Cutquik® STIHL DUROMATIC® STIHL Quickstop® STIHL ROLLOMATIC® STIHL WOOD BOSS® TIMBERSPORTS® WOOD BOSS® YARD BOSS®
66
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250...
Parts List - Page 23
...Plaque matricule MS 250 C
2 0000 967 1500 1 Firmenzeichen STIHL
Nameplate STIHL
Emblème STIHL
3 1110 084 9102 1 Buchse
Bushing
Douille
4 1123 084 7800 1 Segment
Segment
Segment
5 1129 190 0601 1 Rückholfeder
Rewind spring
Ressort de rappel
6 1123 195 0400 1 Seilrolle
Rope rotor
Poulie à câble
7 0000 190 3402
1 Griff ElastoStart Ø 3 mm ) 8, 9
Starter grip...
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