Craftsman 79194 Support Question
Craftsman 79194 Support Question
Find answers below for this question about Craftsman 79194 - 29cc 4 Cycle Gas Trimmer.Need a Craftsman 79194 manual? We have 1 online manual for this item!
Question posted by jmarshll777 on April 28th, 2013
My Trimmer Will Start And Run For A Couple Of Seconds And Die.
i have cleaned the spark shield, replaced the gas, replaced the spark plug. continues to happen. runs for a couple of seconds and dies.
Current Answers
Answer #1: Posted by jomama2345 on May 14th, 2014 9:37 AM
jomama2345
Member since:
June 24th, 2012 Points: 10
Member since:
June 24th, 2012 Points: 10
The issue is valve timing. This happened to me. The gap in the rocker arms (exhaust/intake) is out of tolerence. Easy to set. You just need a 0.005 feeler gauge and a small wrench. Take the valve cover off so you can see the valve rocker arms. Remove the sparkplug and set the piston to top dead center (i.e. no pressure on rocker spring arms. They should be loose and even rattle a little. Place 0.005 (5 mil) feeler gauge under the rocker arm and rod. If its too tight (won't fit) or too loose (more than 5 mils, loosen the set nut on top of rocker arm and tighten until the 5 mil feeler gauge just fits. Reassemble and it should fire right up.
Related Craftsman 79194 Manual Pages
Operation Manual - Page 1
Operator's Manual
®
4-Cycle
WEEDWACKER® GAS TRIMMER
Model No. 316.791940
INCREDI.PULL TM
RNGEL/EVABLS
STARTING
EA SE
with MAXFIRE@IGNITION
_
CAUTION: Before using this product, read this manual and follow all
safety rules and operating instructions.
• SAFETY • ASSEMBLY &#...
Operation Manual - Page 2
...personal injury. Do not smoke while fueling. Do not start the engine until fuel vapors dissipate.
• Move the... metal-reinforced line, wire or rope. FUEL SAFETY WARNINGS FOR GAS UNITS
• Read the instructions carefully. Remove rocks, broken...Replace parts that are no sparks or flames.
Loosen the fuel tank cap slowly to relieve any pressure in the tank.
• Add fuel in a clean...
Operation Manual - Page 3
....
|
A _,;;_,_
__& /Z
• ON/OFF STOP CONTROL ON / START / RUN
• ON/OFF STOP CONTROL OFF or STOP
• KEEP BYSTANDERS AWAY WARNING...starting . Refer to them often and use , see Cleaning and Storage Instructions.
• Keep these instructions. If you strike or become lodged between the cutting attachment and shield.
• To reduce fire hazard, replace a faulty muffler and spark...
Operation Manual - Page 4
...,uchascuttingline,filtersorsparkplugs. • Repairnsecessabryecausoefaccidenotrfailuretooperatoermaintatinheproducatccordintogallsupplieidnstructions. • Preventivmeaintenanocerr,epairnsecessadryuetoimpropefur elmixturec,ontaminatoerdstalefuel. But like all covered repairs [] Product replacement up to time. phone support from regular price of us as a "talking owner's manual." The...
Operation Manual - Page 5
...TRIMMER APPLICATIONS Cutting grass and light weeds; Muffler
Spark Plug
Oil Fill Plug
Shaft Grip On/Off Sto
Control
D-Handle
Craftsman® Convertible TM
Coupler
Shaft Housing
Trimmer Attachment
Fuel Cap
Starter Rope Grip
Cold
Starting... it straight into the coupler until the D-handle is secure. INSTALL LINE TRIMMER ATTACHMENT
NOTE: To make installation easier, place the unit on the ground ...
Operation Manual - Page 6
... and
site before starting the engine.
In...gas stabilizer fuel additive • Drain tank and run the engine dry before each use the correct oil, or using alcohol-blended fuel. See Changing the Oil. Replace... fill plug from ...gas container's spout into the oil fill hole (Fig. 5).
Do not smoke while filling the tank. Keep sparks...oil level in a clean, well ventilated outdoor ...cycle engine.
Operation Manual - Page 7
... a controlled and steady motion. NOTE: There is no need to 30 seconds. Pull the starter rope out with fresh, clean unleaded gasoline. In cold weather, let the engine warm up for 15 ... 40°F/4°0... the engine does not start /closed position. Do not squeeze the throttle control while pulling the starter rope. Allow the engine to the run/open position.
........IF... Press and hold On...
Operation Manual - Page 8
... (Fig. 16) snaps into
The coupler allows you to lock the coupler (Fig. 14).
90 ° Edging Hole (Trimmer ®hi
Knob Fig. 12
Craftsman® Convertible TM Coupler
Primary Hole Release Button
Knob Fig. 13
Guide Recess
Upper _n... Trim only when grass and weeds are thrown away from the operator.
• Slowly move the trimmer into and out of explained trimming techniques, what
-
Operation Manual - Page 9
...
Before starting engine
...Clean spark arrestor Check rocker arm to valve clearance and adjust Check rocker arm to assure peak performance of the emission control devices and system may result from the unit when replacing line.
1. In order to valve clearance and adjust Check spark plug...running . Remove the old line and line glide
plate from :
Fig. 16
Line against the hub and is running...
Operation Manual - Page 10
...Cycle
Motor Oil
Fig. 22 6. Check oil before removing it. 4. Place the engine on an elevated, level surface with the cutting
head shield hanging off the surface to prevent accidental starting.
2. Remove the oil fill plug...19). 6.
Unplug spark plug boot to get a proper oil level reading (Fig. 18).
(
Fig. 18 3. see Checking the Oil Level. Replace the oil fill plug. 7. Clean the area around...
Operation Manual - Page 11
... the engine hesitates or stalls on the air filter cover
(Fig. 28). Start the engine and let it run at the top of the air filter cover onto the
tabs at a high ...(Fig. 29). Replace the filter (Fig. 23). make
The idle speed of the engine is often mistaken for
{
improper unit performance.
Clean Air Filter
The condition of the unit. Refer to Starting/Stopping Instructions.
...
Operation Manual - Page 12
...).
(0.635 mm) 0.025 in . (0.635 mm). Measure both clearances, and adjust as top dead center). socket counterclockwise.
4. b. Replace the spark plug wire.
12.
Pull the starter rope slowly to bring the piston to 20-30 in a clean, dust free area. 1. The feeler gauge should be performed inside, in •lb (2.2-3.4 Nom).
10. Remove the...
Operation Manual - Page 13
... spark plug and drain all of children. Install a correctly-gapped spark plug in . Turn the 5/8 in the cylinder head.
Clean the spark arrestor screen with fuel in accordance to the muffler (Fig. 35). STORAGE • Never store the unit with a wire brush or replace it stalls.
Wipe off the outside of high quality motor oil into a container. Start...
Operation Manual - Page 14
... Fill fuel tank with fuel
Drain gas tank and add fresh fuel Clean or replace spark arrestor
ACTION Replace or clean the air filter Adjust idle speed
ACTION Drain gas tank and add fresh fuel
Plugged spark arrestor
Clean or replace spark arrestor
CAUSE Old fuel
ACTION Drain gas tank and add fresh fuel
Fouled spark plug
Replace or clean the spark plug
NOTE: For repairs beyond the minor...
Operation Manual - Page 15
...engine.
Incredi-Pull TM Starting Auto Rewind
Muffler ...
We...Switch ... Baffled with Hassle Free IIFM, shield & D-handle
11.5-13.0 Ibs (5.2-5.9 kg... a period of two years. • Repair or replacement of a warranted part for two years. If you...the ignition system, and catalytic converter.
Champion Spark Plug #RDZ19H or Similar Spark Plug
Spark Plug Gap ...
0.025 inch (0.635 mm)
...
Operation Manual - Page 16
... filter, carburetor, primer, fuel lines, fuel pick up/fuel filter, ignition module, spark plug, and muffler. If you have a question regarding your warranty coverage, you warranty coverage if your Lawn & Garden fuel tank to the owner. Such use will be repaired or replaced by the Air Resources Board.
(1) Fuel Tank
Written instructions for presenting your...
Operation Manual - Page 34
REPLACEMENT PARTS - MODEL 316.791940 4-CYCLE GAS TRIMMER
Item 1 2 3 4
5 6 7 8 9 10
11 12 13
14 15 16 17 18 19
20 21
22 23... Assembly (includes 18) Cam Bracket Screw Lead Wires
Module Assembly Muffler Gasket
Muffler Assembly (includes 21 & 23) Muffler Screw
Spark Plug Insulator Gasket Nut Insulator Carburetor Gasket Carburetor w/Primer
Item Pa_ No. 3O 791-181751 31 753-05831 32 753-05254 33 753...
Operation Manual - Page 35
REPLACEMENT PARTS - MODEL 316.791940 4-CYCLE GAS TRIMMER
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ... Bolt Screw
Adjustment Knob (includes 15) Nut
Lower Drive Shaft Housing (includes 17) Lower Flexible Drive Shaft Shield Mount Hardware
Blade Assembly Shield Assembly (includes 19) Lower Clamp Assembly (includes 22) Anti-Rotation Screw
Bushing Housing Assembly Adapter Cutting Head ...
Operation Manual - Page 36
For Sears professional installation of all major brand appliances, lawn and garden equipment, or heating and cooling systems,
no matter who made it, ...533-6937)
S___
www.sears.ca
® Registered Trademark / TM Trademark / SMService Mark of your home- For the replacement parts, accessories and owner's manuals that you need to do-it ! Your Home
For expert troubleshooting and home solutions ...
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