Craftsman 104.79211, 104.79212 Carburetor Adjustment, Clean AIR Filter, Adjust Idle Speed Screw

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CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable. An idle adjust- ment screw is on the rear side of the carburetor (Fig. 21).

NOTE: Careless adjustments can seriously damage

your unit. Only a Sears or other qualified dealer should make carburetor adjustments.

CLEAN AIR FILTER

The condition of the air filter is important to the opera- tion of the unit. A dirty or oil saturated air filter will restrict air flow. This is often mistaken for an out of

adjustment carburetor. Check the condition of the air filter before adjusting the idle speed screw. Refer to Cleaning Air Filter (p.13).

ADJUST IDLE SPEED SCREW

If, after checking the fuel and cleaning the air filter, the engine still will not idle, adjust the idle speed screw as follows:

1.Start the engine and let it run at a high idle for a minute to warm up. Refer to Starting/Stopping (p.10) instructions.

2.Release the throttle trigger and let the engine idle. If the engine stops, use a small phillips or fiat blade to turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.

NOTE: The cutting attachment should not rotate when the engine idles.

3.If the cutting attachment rotates when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed. Checking the fuel, cleaning the air filter, and adjusting the idle speed should solve most engine problems. If not and all of the following are true, check the spark plug for proper gap and condition.

•the engine will not idle

•the engine hesitates or stalls on acceleration

•there is a loss of engine power

If problem still occurs, have the carburetor adjusted by a Sears or other qualified service dealer.

WARNING:

Do not sand blast, scrape, or clean spark plug electrodes. Grit in the engine could damage the cylinder.

Idle Adjustment

Screw

Fig.21

REPLACING THE SPARK PLUG

Use NGK CMR6A or Champion RCJ6Y replacement spark plugs.

The correct air gap is 0.02 in. (0.5 mm). Remove the plug after every 25 hours of operation and check its condition.

1.Stop the engine and allow it to cool. Remove the spark plug cover. Grasp the plug wire firmly and pull the cap from the spark plug.

2.Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by using a 5/8 in. socket, turning it counterclockwise.

3.Replace cracked, fouled or dirty spark plug. Set the air gap at 0.02 in. (0.5 mm.) using a feeler gauge (Fig 22).

4.Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8 in. socket clockwise until snug.

If using a torque wrench torque to: 110-120 in. lb. (12.3-13.5 N-m)

NOTE: Do not over tighten.

0.02 in.

(0.5 mm)

Fig.22

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Contents Operators Manual Table of Contents Other Safety Warnings Safety & International Symbols On / Offstopcontrolon / START/RUNTool KIT Installing Cutting Attachment ShieldInstalling the Upper Handle and Safety BAR For Curved Shaft TrimmersRecomended OIL Type Adding OIL to the Crankcase Initial USEBefore USE Carbon Monoxide HazardHandling & Storage During USERemoving the Propane Canister USE the Correct Propane CanisterAttaching the Propane Canister Edging Position Installing Cutting AttachmentsAvailable Cutting Attachments Removing Cutting AttachmentsStarting Instructions Stopping InstructionsOperating Your Trimmer Holding the Trimmer Tips for Besttrimming ResultsChecking the OIL Level Cleaning the AIR Filter Changing the OILAdjust Idle Speed Screw Carburetor AdjustmentClean AIR Filter Replacing the Spark PlugLine Replacement Rocker ARM Clearance Adjustment If the Clearance is not Within SpecificationLong Term Storage CleaningStorage TransportationClutch Type Centrifugal Operating R.P.M Enginetype AIR-COOLED 4-CYCLE DisplacementThrottle Safety Lock with Manual Spring Return Idle SpeedCraftsman Full Warranty Repair ProtectionMY-HOME

104.79212, 104.79211 specifications

The Craftsman 104.79211 and 104.79212 are two notable products in the Craftsman tool lineup, designed to meet the needs of both professional tradespeople and DIY enthusiasts. These models reflect Craftsman's commitment to quality, durability, and innovative technology in their tool manufacturing.

One of the main features of the Craftsman 104.79211 is its robust construction. Made from high-grade materials, this model is built to withstand rigorous use without compromising performance. The design includes an ergonomic handle, ensuring users can maintain comfort during prolonged use, which reduces fatigue and enhances productivity. This feature makes it particularly useful for tasks that require precision and extended focus.

The Craftsman 104.79212 follows suit with similar durability features while incorporating advanced technology that elevates its functionality. This model boasts an integrated measurement system, allowing users to achieve greater accuracy in their work. The easy-to-read scale helps avoid miscalculations and ensures a professional finish every time.

Both models come equipped with a quick-release mechanism, which allows for easy adjustment and interchangeability of attachments. This is particularly beneficial for users who require versatile tools for various applications. The ability to switch between different attachments on the fly saves time and increases efficiency on the job site.

Another standout feature of these models is their compatibility with the Craftsman tool ecosystem. Users can easily integrate them into their existing tool collection, enhancing the overall versatility of their toolkit. This seamless compatibility means that tradespeople can count on dependable performance across multiple projects.

In terms of safety, both the 104.79211 and 104.79212 models incorporate safety features designed to protect users during operation. This gives peace of mind while working on different tasks.

Overall, the Craftsman 104.79211 and 104.79212 embody a perfect blend of reliability, user-friendly design, and advanced features. Whether you are a seasoned professional or a novice, these tools provide exceptional performance for a wide range of tasks, reinforcing Craftsman's reputation as a leader in the tool industry. With their focus on innovation and user comfort, these models are a worthwhile addition for anyone looking to enhance their tool collection.
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