If your daily working time is longer than normal or operating conditions are difficult ( very dusty work area etc. ), shorten the specified intervals accordingly. beforestarting workafter finishingwork or dailyafter eachrefueling stopweeklymonthlyif problemif damagedif required Complete machine Visual inspection (conditon, leaks) x x Clean x Control handle Check operation x x Air filter Clean x x Replace x Filter in fuel tank Check x Replace x x Fuel tank Clean x x Carburetor Check idle setting x x Readjust idle x Spark plug Readjust electride gap x Cooling air intakes Clean x Spark arresting screen in muffler Check Clean or replace All accessible screws and nuts (not adjusting screws) Tighten x 20 BG 45 english / USA Maintenance and Repairs Key to Symbols Special Accessories The user of this unit should carry out only the maintenance operations described in this manual. Other repair work may be performed only by an authorized STIHL dealer. Warranty claims following repairs can be accepted only if the repair has been performed by an authorized STIHL dealer using original STIHL replacement parts. Original STlHL parts can be identified by the STIHL part number, the ST STSTSTSTI IIIIH HHHHl lllllogo and the STlHL parts symbol ( (((( . The symbol may appear alone on small parts. This instruction manual refers to models with different scopes of supply. Parts or features not included in all models and their resultant applications are marked thus * . Parts not included in the standard scope of supply, marked * , are available as special accessories from your STIHL dealer. Scope of supply / equipment STIHL maintains a continuous program of updating its equipment and tools to the very latest standards. For this reason we may modify the design, engineering and appearance of our products periodically. Therefore, we cannot be responsible for changes, modifications or improvements not covered in this manual. Gutter cleaning attachment 4229 007 1001 Fan nozzle 4229 708 6301 BG 45 21 english / USA Specifications Engine Single cylinder two- stroke engine Displacement: 1.66 ci ( 27.2 cc) Bore: 1.34 in (34 mm) Stroke: 1.18 in (30 mm) Idle speed: 2,800 rpm Ignition System Fuel System Type: Spark plug (suppressed): Electronic magneto ignition Bosch WSR 6 F or Carburetor: All position diaphragm carburetor with integral fuel pump NGK BPMR 7 A Air filter: Foam and felt Electrode gap: Spark plug thread: 0.02 in (0.5 mm) M 14 x 1.25; 0.37 in (9.5 mm) long Fuel tank capacity: Fuel mix: elements 13.5 fl. oz ( 0.4 l) See chapter “Fuel” Model Bystanders noise per ANSI B 175.2- 1999 Air flow rate Air velocity Engine power Weight dB( A) m3/h m/ s HP (kW) lb (kg) BG 45 65 665 56 0.87 ( 0.65) 9.3 ( 4.2) 22 BG 45 english / USA STIHL Incorporated Federal and CaliforniaEmission Control Statement Your Warranty Rights and Obligations The U. S. Environmental Protection Agency (EPA), the California Air Resources Board ( CARB) and STIHL Incorporated are pleased to explain the Emission Control System Warranty on your model year 2000 and later equipment type engine. In California, new small off-road engines must be designed, built and equipped to meet the State's stringent anti-smog standards. In other states, new 1997 and later model year small off-road equipment engines must be designed, built and equipped, at the time of sale, to meet the U.S. EPA regulations for small non road engines. The equipment engine must be free from defects in materials and workmanship which cause it to fail to conform with U. S. EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser. STIHL Incorporated must warrant the emission control system on your small off-road engine for the period of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road equipment engine. Your emission control system includes parts such as the carburetor and the ignition system. Also included may be hoses, and connectors and other emission related assemblies. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at no cost to you, including diagnosis (if the diagnostic work is performed at an authorized dealer), parts, and labor. Manufacturer's Warranty Coverage: The small off-road equipment engines are warranted for two years in California. In other states, 1997 and later model year small off-road equipment engines are also warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or replaced by STIHL Incorporated free of charge. Owner's Warranty Responsibilities: As the small off-road equipment engine owner, you are responsible for the performance of the required maintenance listed in your owner's manual. STIHL Incorporated recommends that you retain all receipts covering maintenance on your small off-road equipment engine, but STIHL Incorporated cannot deny warranty solely for the lack of receipts ...