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Stihl Fs40c

8/25/2021
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  1. Stihl Fs40c Manual
  2. Stihl Fs40c Carburetor Adjustment
  3. Stihl Fs40c Carburetor Adjustment

Get the best deals for stihl fs40c head at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items! View and Download Stihl FS 40 instruction manual online. STIHL FS 40 brush cutter pdf manual download. Also for: Stihl fs 50, Fs 40, Fs 38. Quick tips for starting your STIHL FS 40 C-E trimmer.This entry-level trimmer feels like first class. The STIHL FS 40 C-E trimmer is lightweight, balanced in. Merchandise Link: #HowToStringAWeedeater #HowToStringAGrassCutterHow #HowToPutStringOnAWeedeater #HowToUseAWeed. STIHL recommends using only STIHL replacement parts for the repair and maintenance of your STIHL equipment. We want every STIHL owner to have the best product performance possible, so if you are in need of STIHL repair or equipment maintenance, contact your local authorized full-line STIHL.

Lightweight reliable consumer trimmer with Easy2Start™

General

The FS 40 C-E is a lightweight curved shaft trimmer, powered by an advanced low emission engine, for homeowner use. Featuring the Easy2Start™ system for simplified starting, a TapAction™ AutoCut® C 5-2 cutting head for easy line refilling and a stop switch, which automatically returns to start position for easier operation. High fuel efficiency coupled with exceptional stability, make this trimmer friendly to the operator and to the environment.

Versions

Featured Price
  • MSRP $249.95*Now Only $229.95**

* Dealers may sell for less. Pricing on all chain saws, power tools and accessories will remain in effect until December 31, 2021. Illustrations and descriptions are as accurate as known at the time of publication and are subject to change without notice. STIHL Limited is not responsible for a printing error, the local STIHL Dealer has the final authority to set product pricing. Pricing valid at participating dealers only while supplies last.
** Dealers may sell for less. Sale pricing will remain in effect until December 4, 2020. Illustrations and descriptions are as accurate as known at the time of publication and are subject to change without notice. STIHL Limited is not responsible for a printing error, the local STIHL Dealer has the final authority to set product pricing. Pricing valid at participating dealers only while supplies last.
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Technical data

Technical data

Technical dataValue
Power output (kW/bhp)0.7/0.94
Weight (kg / lbs) 4.5 / 9.9
Displacement (cc) 27.2
Power output (kW) 0

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Features

Standard features

  • 2-stroke reduced-emission engine technology

    2-stroke engine with stratified charge. A fuel-free layer of air is created between the burned charge in the combustion chamber and the fresh charge in the crankcase, reducing the amount of fuel lost during the charge cycle. This results in more power with a lower weight, up to 20% lower fuel consumption than regular 2-stroke engines and significantly reduced exhaust emissions.

  • Simplified starting system

    Simply set the choke, pump the fuel primer, pull the starter cord and away you go! The running machine then switches off after a brief press of the stop button. Once the machine is at a standstill, the ignition activates again automatically. Thus the ignition is always ready for starting.

  • Loop handle (R)

    The loop handled grass trimmers and brushcutters are ideal for working in areas where space is limited, e.g. thinning between bushes and shrubs.

  • Multi-function control handle

    Easy, comfortable thumb-operated control means the operator's hand never leaves the handle.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Documents

Owners manuals and safety brochures

LanguagesDateLink
en / fr 2020-08-24
By Allan Douglas Aug 23, 2017

I recently wrote about my adventure in trimmer shopping, this is the follow-up to that piece as a review of my new Stihl FS40C string trimmer.

Stihl Fs40c Manual

Stumbling Start

Stihl

Testing was delayed by the fact that I didn’t have a 1-gallon gas can. I have several 2-gallon cans, and one is a can into which I pump precisely 2 gallons of gas for use in my 2-stroke equipment. I have some gas/oil mixed up but that’s a 40:1 mix for my older tools. The Stihl FS40C string trimmer uses a 50:1 mix.

I bought a six-pack of synthetic oil for the Stihl, each bottle mixes with one gallon of gasoline. I figured I’d use that can of new gas and two bottles of oil and be all set to fire up and see what it can do. But the manual and some commentary online talk about the need to use the gas/synthetic oil mix within 30 days or it begins to decompose, and using degraded gas/oil can void the extended warranty (four years) Stihl offers. In fact, in reading the warranty there are several ways they try to get out of paying for repairs during that second two-year period.

Firing Up My Stihl FS40C String Trimmer

Stihl

Big timer clock.

As you can see, I could set this one down and leave it for a long time and it continues to purr right along.

Gas Mileage

One of the few complaints I saw in reviews on the Stihl FS40C string trimmer was that it has a small fuel tank and requires frequent fill-ups. But I found this not to be the case. Maybe it was an old review and the issue has been addressed since, or maybe the reviewer expects to trim for three hours solid. I trimmed my workshop yard (small but steep) and the dog’s play yard (1/3 acre) and still had some fuel left in the tank. That’s plenty of “mileage” for me in one session.

Power and Performance

Replacement

At 27cc this engine is a bit smaller than the 31cc in my Poulon, but the Stihl FS40C string trimmer had no trouble powering through grass and standing weeds. The .80 line it uses punched through the small brushy stuff better than the .65 line on my Poulon. The bump feed on the line is not as touchy as the old one had gotten to be, either. I tended to use up line faster than I should because accidental bumps against the ground would feed line that just got cut off by the blade. Not a problem with the new Stihl.

As I was working, I did notice that the engine went “flat” a few times. Each time I told myself, “OK, here we are running out of gas already,” but then it picked up power and kept going. I’m not sure what that was about.

The throttle is responsive, the engine not too loud, and the unit is lighter in weight than my old one. This is largely because of the shaft design I chose.

Stihl Fs40c Carburetor Adjustment

Which Shaft?

You have three choices to make in trimmer shafts:

  • straight shaft or curved
  • long shaft or short
  • split shaft or solid

Stihl Fs40c Carburetor Adjustment

Curved or Straight?

Straight shafts use a mechanical gearbox on the end of the shaft to change the direction of power and channel it into the cutter head. Curved shafts use a flexible cable inside a housing to transmit power to the cutting head.

A straight shaft offers a lower cutting head, thereby being better at getting underneath fence rails, sheds, shrubbery, and so forth. The gear box makes the end of the shaft heavier, but is said to be more efficient in transmitting power to the cutting head. Just make sure you check the oil in the gear box occasionally.

The curved shaft eliminates that cast metal housing and gears, thereby making the shaft lighter. The trade-off is that the cable running through a curved shaft can create friction, and some folks complain about frequent failure of these cables. Mostly in low-end brands, though. I’d expect Stihl to use a properly sealed and lubricated cable and housing. I saw no complaints about this in product reviews by other buyers.

Long or Short?

Both styles come in a long-shaft and a short-shaft version. If you need a long reach (like reaching over a brow to cut a steep embankment) a long shaft is handy. For tight quarters the short shaft is great.

Split or Solid?

Both styles also offer a split-shaft version that allows you to change out the implement on the end of the shaft. String trimmer, brush cutter, pole saw, leaf blower, edger, and cultivator are some of the attachments available for some of these systems.

I had the cultivator (tiller) and the brush cutter blade for my Poulon, but rarely used them. I decided to forgo the split-shaft this time around. I also bought a curved shaft for the first time, and a short shaft at that.

Putting It To Work

I noticed the difference right off. Not having the long shaft with gear box cantilevered out on the end of it made the trimmer much easier to handle. It felt weird having the cutter so close to my feet, though. I will definitely miss that long shaft when weed-whacking up in Copperhead County. That extra few feet of exploratory distance was comforting.

But working around my walkways and lumber piles was much easier because I wasn’t doing so much jockeying to move through the tight spaces and get into the corners.

In order to get the cutter head parallel to the ground, I still had to hike the engine up my side, but that’s because I’m short. The short shaft did help a bit as the hot engine did not have to be tucked up into my armpit.

Stihl FS40C String Trimmer Conclusion

I’ve used this string trimmer several times now and have found it to start right up, run strong (those momentary power drops have not repeated), and have plenty of power and work time. The lighter weight makes trimming less of a chore, too. I’m happy.

More Info: Listing on Stihl web site

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