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Question posted by wltpio2 on June 24th, 2013

I Have A Craftsman Gas Brushwacker Mod.636.796243

I have had this thing for years. It says that the fuel should be mixed 16/1 mix. Can I use the modern 2 cycle oils that are stated to be FOR ALL AIR COOLED 2 CYCLE ENGINES, or should I use this oil at a 16/1 mix? 16/1 is very rich and even when I first got it (many years ago) is seeped oil from the muffler. I just replaced the fuel tank and all the stuff that goes with it and it still runs great but I would like to use a leaner mix if possible. Thanks

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Related Craftsman 25cc Manual Pages

Operation Manual - Page 1

LEHR | ALL RIGHTS RESERVED 2008-2009 OPERATOR'S MANUAL PROPANE POWERED LINE TRIMMER 16.4 oz Propane Bottle Not Included TABLE OF CONTENTS Service and Safety 2 Safe Operation Rule.s 3 Understanding Your Trimme...r 4 Assembly 5 Oil Information 6 Understanding Propan.e 7 Installing the Propane Canist.e..r 8 Installing Attachment.s 9 Starting / Stopping 10 ...

Operation Manual - Page 2

...and maintained for fuel leaks. outside a 50 feet (15 m.) radius; If you are • Th st th Forest Land and the State of California (Public...use of California, Maine, Oregon, and Washington. SERVICE AND SAFETY S LEHR ECO-TRIMMER IMPORTANT SAFETY INSTRUCTIONS DU 4-CYCLE PROPANE TRIMMER READ ALL INSTRUCTION BEFORE OPERATING • Ne For service call 1-866-941-LEHR in the United States...

Operation Manual - Page 3

...must be in the starting . These are marked as a trimmer. Use of any other materials. The cutting attachment remains stationary when the engine is dusty. • Wear heavy long pants, boots,...with propane canister attached inside a closed room or build - whenever pulling the starter rope. ance. • Never douse or squirt the unit with a foreign object, stop the engine ...

Operation Manual - Page 4

... injury and hearing loss. These parts get burned. UNDERSTANDING YOUR TRIMMER SAFETY AND INTERNATIONAL SYMBOLS This operator's manual describes safety and international symbols and pictographs ... in serious injury to operator's manual for the proper type of oil. OTHER OPTIONAL ACCESSORIES MAY BE USED WITH YOUR UNIT 4 LEHR | ALL RIGHTS RESERVED 2008-2009 WARNING: READ OPERATOR'S MANUAL: ...

Operation Manual - Page 5

... using provided hardware in (Fig. 3), positioning the handle parts evenly over the tube in (Fig. 1). Installing D-Handle over the rubber sleeve on your unit is equipped with. Install the fasteners as shown in desired position. 3. LEHR | ALL RIGHTS RESERVED 2008-2009 5 Do not completely tighten. 3.While holding the unit in place. FOR CURVED SHAFT TRIMMERS...

Operation Manual - Page 6

... of oil into the oil ll hole (Fig. 7). 4-Cycle Motor Oil Fig. 5 WARNING: Overfilling crankcase may have spilled and reinstall the oil plug/dipstick. 6 LEHR | ALL RIGHTS RESERVED 2008-2009 Remove the oil plug / dipstick from the exhaust. Check and maintain the proper oil level in the crankcase before each use the correct oil, or using dirty oil, can be overemphasized. Use a high...

Operation Manual - Page 7

... reduce chance of escaping gas. Never use tools to $500,000, and 5 years impris onment (49 U.S.C. 5124). 6. Never use with other ignition sources, they can damage seals. 5. Read and follow appliance instructions. DURING USE Never use cylinder until it is possible to the naked eye. UNDERSTANDING PROPANE SAFETY WARNINGS FOR PROPANE UNITS NOTE: Use propane only in luggage or take...

Operation Manual - Page 8

... threaded end, remove it counterclockwise. clamp. ALWAYS STOP THE ENGINE AND ALLOW IT TO COOL BEFORE REPLACING THE PROPANE CANISTER. Make sure the engine is o . 4. If the propane canister to Federal, State and local Regulations. to be normal to hear or smell a slight momentary leak of fuel line components are the correct size. VAPOR MAY EXPLODE. Remove...

Operation Manual - Page 9

... edging hole (Fig. 11), so that the engine is upright (propane tank on bottom) when unit is ready to use of a trimmer being used in the upright position while operating. REMOVING CUTTING... shaft housing, pull the cutting attachment or add-on a work bench to be used for use . 4. LEHR | ALL RIGHTS RESERVED 2008-2009 9 Turn knob counterclockwise to the unit. Upper Shaft Housing...

Operation Manual - Page 10

...handle pole with propane. 5. NOTE...engine for 15 to Checking the Oil Level ( p. 12). 2. When done using the trimmer for 30 to 60 seconds. STARTING/STOPPING STARTING INSTRUCTIONS 1. Turn switch to squeeze the throttle open ame. Do not attempt to cool down by idling. 2. NOTE: On the rst use...engine to start on the ground or a very sturdy work surface. Throttle Control Fig. 13 10 LEHR...

Operation Manual - Page 12

... HOURS MAINTENANCE REQUIRED CHECK OIL CLEAN AND RE-OIL AIR FILTER CHANGE OIL CHANGE OIL CHECK SPARK PLUG POSITION AND GAP R OCKER ARM CLEARANCE ADJ USTMENT REFER TO PAGE 6 PAGE 13 PAGE 13 PAGE 13 PAGE 14 PAGE 17 Perform these pro cedures call 1-866-941-LEHR for the location of your trimmer NOTE: Some maintenance procedures...

Operation Manual - Page 13

... can cause permanent damage to Federal, State and local regulations. 5. NOTE: The bottle measure approximately 1.7 fluid oz/50 ml. If the level is operated without the air lter, you will ow freely and carry away more impurities. 1. Apply enough clean SAE 10W-30 motor oil to dry. 4. LEHR | ALL RIGHTS RESERVED 2008-2009 13...

Operation Manual - Page 14

... carburetor adjustments. Turn the 5/8 in . (0.5 mm) Fig.23 14 LEHR | ALL RIGHTS RESERVED 2008-2009 An idle adjust ment screw is a loss of engine power Check the spark plug for a min - Checking the fuel, cleaning the air lter, and adjusting the idle speed should solve most engine problems. If not and all of the following are...

Operation Manual - Page 15

...other than those speci ed may make the engine overheat or fail. Review gure 28 for names of the head as shown (Fig. 24). 3. When shaft can no longer rotate, loosen head by... direction of trimmer body, take care to in collar and turn until it is wound. 6. While holding reel into hole in these instructions. 2. LEHR | ALL RIGHT RESERVED 2008-2009 15 If using new line from...

Operation Manual - Page 16

... Button Fig.31 Top view Fig 35 Trimmer Head Body Bottom 7. Close assembly in sequence as shown for curved shaft and opposite for straight shaft. Lock shaft by turning opposite the direction shown in (15-20 cm) access to pull through cover 16 LEHR | ALL RIGHTS RESERVED 2008-2009 Fig.3 7 If using new line from a bulk spool, cut...

Operation Manual - Page 17

... This task should be cold when checking or adjusting the valve clearances. The engine must be performed in the tool kit (Fig. 39). If you feel ...shaft. Replace when using line trimmer head (Fig. 41). Fig. 41 ROCKER ARM CLEARANCE ADJUSTMENT This requires partial disassembly of operation. Remove the engine cover. 3. Engine cover screws Fig.42 Engine cover screws LEHR ...

Operation Manual - Page 18

... position is 0.076-0.152mm (0.003-0.006in). • Use a standard automotive 0.127mm (0.005in) feeler gage. Tighten... SPECIFICATION 1. ALWAYS SERVICE AND REPAIR A COOL UNIT. Pull the starter rope slowly to...engine cover screws until snug. 6. Jam Nuts Feeler Gauge Exhaust Valve Intake Valve Fig.44 18 LEHR | ALL RIGHTS RESERVED 2008-2009 Recheck the both clearances. Reinstall the engine...

Operation Manual - Page 19

... THE CUTTING ATTACHMENT DIRTY AIR FILTER ENGINE LACKS POWER OR STALLS WHEN CUTTING CAUSE BAD SPARK PLUG CLEAN OR REPLACE THE AIR FILTER ACTION IF FURTHER ASSISTANCE IS REQUIRED, CONTACT A QUALIFIED SERVICE DEALER . Do not use or damage. • Store the unit in accordance to Federal, State and Local regulations. 4. Allow the engine to cool before transporting. •...

Operation Manual - Page 20

... CRANKCASE OIL CAPACITY FUEL CARBURETOR STARTER MUFFLER THROTTLE DRIVE SHAFT AND HOUSING DRIVE SHAFT HOUSING THROTTLE CONTROL APPROXIMATE UNIT WEIGHT CUTTING MECHANISM LINE SPOOL DIAMETER TRIMMING LINE DIAMETER CUTTING PATH DIAMETER AIR COOLED 4-CYCLE 25.4 CC CENTRIFUGAL 6,800-9300 R.P.M. 3,000-3,400 R.P.M. WE RESERVE THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE. 20 LEHR | ALL...

Operation Manual - Page 21

...used for products sold or exported outside of the United States or Canada, its possessions and territories, except those sold through your small o -road engine for rental purposes. LEHR does not extend any such part fails during the warranty period. are not exempted by the Air...NOT APPLY TO YOU. If any defective power product or attachment as required maintenance in ...