Stihl MS 170 Support Question
Stihl MS 170 Support Question
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Question posted by trmoore1959 on February 9th, 2023
My Stihl Has Never Been A Problem Until Today. It Will Not Start. I Went Over Th
The basics, fuel, spark, vapor lock, everything. Still no start. It ran great last week. I don't understand, what has happened?
Current Answers
Answer #1: Posted by hzplj9 on February 11th, 2023 1:53 PM
hzplj9
Member since:
June 25th, 2012 Points: 4,873,510
Member since:
June 25th, 2012 Points: 4,873,510
Did you replace the spark plug with a new one? It is common that you get a spark but when inside the engine it does not due to the compression in the cylinder. Have you you refuelled with the correct mixture? Old fuel can evaporate leaving the ratio to oil not correct hence not enough ignition of fuel. These are simple preliminary measures before delving further.
Hope that solves your problem. Please mark as helpful if it leads you to a satisfactory solution.Thank you.
Related Stihl MS 170 Manual Pages
Product Instruction Manual - Page 3
... Tension
28
Fuel
28
Fueling
29
Chain Lubricant
30
Filling Chain Oil Tank
30
Checking Chain Lubrication
31
Chain Brake
31
Starting / Stopping ...STIHL Incorporated Federal Emission Control Warranty Statement
STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement
Trademarks
{
MS 170, MS 170 C, MS 180, MS 180 C
Allow only persons who fully understand...
Product Instruction Manual - Page 8
...raised positioning
6
MS 170, MS 170 C, MS 180, MS 180 C ...STIHL dealer for installation, turn ). Grip the cap and check for fuel leakage while refueling and during operation.
Check for tightness. If this STIHL...fuel tank opening with open position for repair.
001BA227 KN
001BA226 KN
001BA220 KN
To do not start or run the engine until it may be equipped with this happens...
Product Instruction Manual - Page 9
... important. MS 170, MS 170 C, MS 180, MS 180 C
7 Screw Cap
Warning! The screwdriver end of the STIHL combination wrench or other in your power tool.
Always make sure the hexagonal nut(s) for proper condition and operation before starting methods reduce the risk of the chain is securely mounted on the spark plug - To reduce the risk of fuel. Unit...
Product Instruction Manual - Page 10
...cannot set the correct idle speed, have your STIHL dealer check your right foot into the rear ...control and / or contact with the starting throttle lock engaged will disengage the starting the saw firmly with your hand....MS 170, MS 170 C, MS 180, MS 180 C Hold the rear handle of personal injury from chain contact and / or reactive forces, the chain brake must be fast enough for starting...
Product Instruction Manual - Page 12
...MS 170, MS 170 C, MS 180, MS 180 C Warning! Substantial or repeated inhalation of dust and other reproductive harm. Use good work area, even when starting. When the inhalation of dust cannot be substantially controlled, i.e., kept at the source where possible.
Stop the engine immediately if you are known to cause respiratory problems... Conditions
Operate and start your body is ...
Product Instruction Manual - Page 13
...your power tool using the starting throttle lock, as to important components ...STIHL servicing dealer. Such objects may result in the feel of the saw , increased vibration or increased "bottoming" during operation and remain hot for prying or shoveling away limbs, roots or other objects. MS 170, MS 170 C, MS 180, MS...increase in heat radiation or sparks, thereby increasing the risk of...
Product Instruction Manual - Page 15
...below 3.8 cubic inches (62 cm³) displacement to chain saw until the problem has been rectified. The computer derived angles for Reducing the Risk of Kickback Injury
STIHL recommends the use only the following cutting attachments:
English
-
The type of ...the instruction manual or
- other factors. See the section on the powerhead or
- Warning! MS 170, MS 170 C, MS 180, MS 180 C
13
Product Instruction Manual - Page 18
... catch the chain, be reduced by using wedges to close and pinch the chain.
11. Always start a cut if you off balance.
001BA037 KN 001BA038 KN
To avoid Pull-in contact with these ...the chain can pinch.
16
MS 170, MS 170 C, MS 180, MS 180 C The risk of kickback is used for shifting of kickback injury when used on the top of the guide bar contact any STIHL chain saw firmly with a bow...
Product Instruction Manual - Page 24
...areas is stopped before cutting. Always start relieving cut (1) at compression side....STIHL replacement parts for maintenance and repair.
MAINTENANCE, REPAIR AND STORING
Maintenance, replacement, or repair of pinching! Warning! Do not attempt any nonroad engine repair establishment or individual. Wear gloves when handling or performing maintenance on the log. MS 170, MS 170 C, MS 180, MS...
Product Instruction Manual - Page 26
... guide bar (3). the chain brake is an audible click - start at the bar nose.
143BA003 KN
001BA186 KN
24
MS 170, MS 170 C, MS 180, MS 180 C Fitting the chain
Wear work gloves to protect your ... produce its own chain saws, guide bars, saw chains and chain sprockets. English
Cutting Attachment
STIHL is designed to exactly match the chain saw. The drive link gauge (2) of operation.
001BA191...
Product Instruction Manual - Page 30
...STIHL twostroke engine oil at the pump, first remove the container from static
28
MS 170, MS 170 C, MS 180, MS 180 C
Avoid direct contact with the same ethanol content. Fuel ...fuel with the skin and avoid inhaling fuel vapor.
We recommend STIHL HP Ultra 2-Cycle Engine Oil since it must still be retensioned more than 10% can be used in gasoline affects engine running problems...
Product Instruction Manual - Page 34
... is switched off Run F - If the fuel tank has run F. After ventilation of throttle after starting the cold engine
001BA140 KN
Adjusting the Master ...MS 170, MS 170 C, MS 180, MS 180 C When the engine has turned over for no more than 3 seconds - Position cold start n
- one minute)
- Accelerate up to run F to cold start l, then push the master control lever into the warm start...
Product Instruction Manual - Page 42
...
40
MS 170, MS 170 C, MS 180, MS 180 C operating at part load.
000BA039 KN 000BA071 KN
1
2
Warning!
see "Specifications". N Check electrode gap (A) and
readjust if necessary - N Use only resistor type spark plugs of spark plug: - To reduce the risk of fire and burn injury, use only spark plugs authorized by your dealer. reassembly all other parts in fuel mix...
Product Instruction Manual - Page 48
...accordingly.
before starting work after ...work or daily after each refueling stop weekly monthly every 12 months if problem if damaged if required
Complete machine
Visual ...)
Check
Pickup body/filter in fuel tank
Clean, replace filter element
Replace
Fuel tank
Clean
Chain oil tank
Clean...
XX
X
X
X
X
X
X
X
X
X
X
X
XX
X
X
X
X
X
X
X
MS 170, MS 170 C, MS 180, MS 180 C
Product Instruction Manual - Page 49
... screws and nuts (not adjusting screws) 2)
Retighten
Check1) Spark arresting screen in muffler (not all markets)
Clean, replace if necessary1)
Check
X
Chain catcher
Replace
Safety labels
Replace
1) STIHL recommends a STIHL servicing dealer. 2) Firmly tighten down the cylinder base screws of operation. X X
X X
X
X X
MS 170, MS 170 C, MS 180, MS 180 C
47 If your daily working time is...
Product Instruction Manual - Page 55
...engine to fail to
MS 170, MS 170 C, MS 180, MS 180 C
53 Environmental Protection Agency (EPA) and STIHL Incorporated are responsible for a period of the engine manufacturer. STIHL Incorporated must warrant ... inspection to conform with U.S. Your emission control system includes parts such as a
problem exists. If any emissionrelated part on your small off -road equipment engine or ...
Product Instruction Manual - Page 56
... Module)
- Fuel Tank
- Fuel Line Fittings
-
Mechanical diagnostic ...Start Enrichment System)
- Intake Manifold
- Deviations from this manual are based on emission-related parts and must be performed either at STIHL Incorporated or at and after the first scheduled replacement point.
54
MS 170, MS 170 C, MS 180, MS 180 C Catalytic Converter (if applicable)
- Air Filter
- Spark...
Product Instruction Manual - Page 57
... Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners. Manufacturer's Warranty Responsibilities
This emissions control system is purchased by CARB may include parts such as the problem exists. STIHL Incorporated...
Product Instruction Manual - Page 58
...Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners
Where to make a Claim for Warranty Service
Bring the STIHL...for warranty coverage.
56
MS 170, MS 170 C, MS 180, MS 180 C If any warranty ...
Product Instruction Manual - Page 59
...these trademarks without the express written consent of trademarks is strictly prohibited.
Registrations #2,821,860; #3,010,057, #3,010,058, #3,400,477; Trademarks
STIHL Registered Trademarks
STIHL® { K The color combination orange-grey (U.S. MS 170, MS 170 C, MS 180, MS 180 C
57 and #3,400,476)
4-MIX® AUTOCUT® EASYSTART® FARM BOSS® iCademy® OILOMATIC®...
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