Engine Starting Procedure
Page 1
... cruise control (set to full throttle) Pull starter grip sharply until engine attemps to run . Pull the starter grip and rope until engine attemps to run . Set the choke lever to the " RUN " position B. Do not pull starter grip more than 5 times. Troubleshooting tips are also available in the primer bulb. Set the choke lever to the " RUN " position B. Lock the cruise control (set to Idle) Set the choke lever to " START" position A. Do not pull starter grip more than 6 times. To Stop: Depress the STOP switch to the stop position "O". 1-800...
... cruise control (set to full throttle) Pull starter grip sharply until engine attemps to run . Pull the starter grip and rope until engine attemps to run . Set the choke lever to the " RUN " position B. Do not pull starter grip more than 5 times. Troubleshooting tips are also available in the primer bulb. Set the choke lever to the " RUN " position B. Lock the cruise control (set to Idle) Set the choke lever to " START" position A. Do not pull starter grip more than 6 times. To Stop: Depress the STOP switch to the stop position "O". 1-800...
User Manual
Page 5
... control of serious injury to the user, or damage to prevent entanglement in any rotating parts. Do not operate this Operator's Manual. Inspect the unit before each use . Replace damaged parts. Do not use this screen is equipped with hearing protection. Service or maintenance performed by qualified repair personnel only. GENERAL SAFETY RULES WARNING: Read and understand all moving parts and all instructions listed...
... control of serious injury to the user, or damage to prevent entanglement in any rotating parts. Do not operate this Operator's Manual. Inspect the unit before each use . Replace damaged parts. Do not use this screen is equipped with hearing protection. Service or maintenance performed by qualified repair personnel only. GENERAL SAFETY RULES WARNING: Read and understand all moving parts and all instructions listed...
User Manual
Page 6
..., clean surface when engine is spilled, do not smoke while refueling. Add fuel before installing or removing attachments. Gravel, sand, and other occasional users for prolonged use an approved fuel storage container while in place. Prolonged periods of operation can cause circulatory problems in containers specifically designed for spreading chemicals, fertilizers, toxic substances, or any movable parts. Rotating impeller blades can...
..., clean surface when engine is spilled, do not smoke while refueling. Add fuel before installing or removing attachments. Gravel, sand, and other occasional users for prolonged use an approved fuel storage container while in place. Prolonged periods of operation can cause circulatory problems in containers specifically designed for spreading chemicals, fertilizers, toxic substances, or any movable parts. Rotating impeller blades can...
User Manual
Page 7
... hazard Read Operator's Manual Eye and Hearing Protection To reduce the risk of injury, user must read and understand operator's manual before using this product. Blower Tubes Do not operate without tubes in... of long hair being drawn into air inlet Loose Clothing Risk of 87 [(R + M) / 2] or higher. Use unleaded gasoline intended for motor vehicle use with any hot surface. SYMBOLS The... allow you to operate the product better and safer. Please study them and learn their meaning. This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle oil. 5 -
... hazard Read Operator's Manual Eye and Hearing Protection To reduce the risk of injury, user must read and understand operator's manual before using this product. Blower Tubes Do not operate without tubes in... of long hair being drawn into air inlet Loose Clothing Risk of 87 [(R + M) / 2] or higher. Use unleaded gasoline intended for motor vehicle use with any hot surface. SYMBOLS The... allow you to operate the product better and safer. Please study them and learn their meaning. This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle oil. 5 -
User Manual
Page 8
... list are not assembled to the product by loosening handle knob to your operator's manual. 6 - n Do not discard the packing material until you are attempting. ENGINE The blower has a powerful 42cc engine with fully adjustable harness and waist straps to handle tough jobs. PACKING LIST Backpack Blower Bellows Throttle Control Handle Tube Straight Tube Nozzle Large Tube Clamp (upper) Small Tube Clamp (lower) 2-Cycle Engine Oil Assembly Tool Operator's Manual NOTE: Read and remove all operating...
... list are not assembled to the product by loosening handle knob to your operator's manual. 6 - n Do not discard the packing material until you are attempting. ENGINE The blower has a powerful 42cc engine with fully adjustable harness and waist straps to handle tough jobs. PACKING LIST Backpack Blower Bellows Throttle Control Handle Tube Straight Tube Nozzle Large Tube Clamp (upper) Small Tube Clamp (lower) 2-Cycle Engine Oil Assembly Tool Operator's Manual NOTE: Read and remove all operating...
User Manual
Page 9
..., always disconnect the engine spark plug wire from the spark plug when assembling parts. Any such alteration or modification is properly installed. Tighten the large tube clamp using the assembly tool. ADJUSTING THROTTLE CONTROL HANDLE See Figure 7. Loosen locking screw by turning counterclockwise. Move throttle control handle to desired position and secure locking screw by twisting to ensure they are replaced. CAUTION: Make all locking connections after the blower is strapped onto the operator's back. Join...
..., always disconnect the engine spark plug wire from the spark plug when assembling parts. Any such alteration or modification is properly installed. Tighten the large tube clamp using the assembly tool. ADJUSTING THROTTLE CONTROL HANDLE See Figure 7. Loosen locking screw by turning counterclockwise. Move throttle control handle to desired position and secure locking screw by twisting to ensure they are replaced. CAUTION: Make all locking connections after the blower is strapped onto the operator's back. Join...
User Manual
Page 10
... your lawn Keeping decks and driveways free from ignition sources and open flames and sparks. Keep away from grass clippings, leaves, pine needles, and other possible serious injuries. Recommended fuel: This engine is certified to operate on a clean surface. Carefully pour fuel into your eyes and other debris FUELING AND REFUELING THE BLOWER WARNING: Gasoline and its vapors are not covered under warranty...
... your lawn Keeping decks and driveways free from ignition sources and open flames and sparks. Keep away from grass clippings, leaves, pine needles, and other possible serious injuries. Recommended fuel: This engine is certified to operate on a clean surface. Carefully pour fuel into your eyes and other debris FUELING AND REFUELING THE BLOWER WARNING: Gasoline and its vapors are not covered under warranty...
User Manual
Page 11
... starting . Contact with the times listed in the morning or late at any part of your equipment before blowing. n Operate blower at least 15 minutes prior to press the primer until you may have. Do not touch or place any one time. HOT RESTART OF THE ENGINE: Set the choke lever to a comfortable position. Adjust the straps to the RUN position. Lock cruise control. Pull the starter...
... starting . Contact with the times listed in the morning or late at any part of your equipment before blowing. n Operate blower at least 15 minutes prior to press the primer until you may have. Do not touch or place any one time. HOT RESTART OF THE ENGINE: Set the choke lever to a comfortable position. Adjust the straps to the RUN position. Lock cruise control. Pull the starter...
User Manual
Page 12
... that is loosened, the check valve may become blocked with hearing protection. electrode gap. WARNING: Never run the blower without a muffler equipped with a spark arrestor in contact with plastic parts. A clogged fuel filter will seriously damage the product. Run engine until it is to be replaced at 2000 feet or lower. HIGH ALTITUDE ENGINE OPERATION Please have an authorized service center restore high altitude modified engines to do so could...
... that is loosened, the check valve may become blocked with hearing protection. electrode gap. WARNING: Never run the blower without a muffler equipped with a spark arrestor in contact with plastic parts. A clogged fuel filter will seriously damage the product. Run engine until it is to be replaced at 2000 feet or lower. HIGH ALTITUDE ENGINE OPERATION Please have an authorized service center restore high altitude modified engines to do so could...
User Manual
Page 13
MAINTENANCE SCHEDULE Maintenance Part Inspect For Damage Before Each Use Clean Every 5 Hours Replace Every 25 Hours or Yearly Replace Every 50 Hours * AIR FILTER ASSY includes: Filter Screen X * CARBURETOR ASSY * FUEL TANK ASSY includes: Fuel Lines X Fuel Cap X Fuel Filter...X * IGNITION ASSY includes: Spark Plug...X * NOTICE: THE USE OF EMISSION CONTROL COMPONENTS OTHER THAN THOSE DESIGNED FOR THIS UNIT IS A VIOLATION OF FEDERAL LAW. MAINTENANCE THIS PRODUCT WAS MANUFACTURED WITH A CATALYST MUFFLER Congratulations! CALL US FIRST For...
MAINTENANCE SCHEDULE Maintenance Part Inspect For Damage Before Each Use Clean Every 5 Hours Replace Every 25 Hours or Yearly Replace Every 50 Hours * AIR FILTER ASSY includes: Filter Screen X * CARBURETOR ASSY * FUEL TANK ASSY includes: Fuel Lines X Fuel Cap X Fuel Filter...X * IGNITION ASSY includes: Spark Plug...X * NOTICE: THE USE OF EMISSION CONTROL COMPONENTS OTHER THAN THOSE DESIGNED FOR THIS UNIT IS A VIOLATION OF FEDERAL LAW. MAINTENANCE THIS PRODUCT WAS MANUFACTURED WITH A CATALYST MUFFLER Congratulations! CALL US FIRST For...
User Manual
Page 14
... spark, repeat test with a new spark plug. Engine requires approximately three minutes to start. Air filter is full of fuel. Use fresh fuel and the correct 2-cycle lubricant mix. Reattach the spark plug cap and lay spark plug on metal cylinder. Hold throttle at high Carburetor requires adjustment. Starter rope pulls harder now than when new. Allow the unit to sit for spark at half choke. Contact an Authorized Service Center. Contact an Authorized Service Center. Push primer bulb until bulb is dirty. Engine starts...
... spark, repeat test with a new spark plug. Engine requires approximately three minutes to start. Air filter is full of fuel. Use fresh fuel and the correct 2-cycle lubricant mix. Reattach the spark plug cap and lay spark plug on metal cylinder. Hold throttle at high Carburetor requires adjustment. Starter rope pulls harder now than when new. Allow the unit to sit for spark at half choke. Contact an Authorized Service Center. Contact an Authorized Service Center. Push primer bulb until bulb is dirty. Engine starts...
User Manual
Page 15
... back to the owner after repair or replacement will be cause for RYOBI® brand outdoor products (Authorized Ryobi Service Center). The warranty does not extend to repairs made necessary by normal wear or by an authorized service dealer. Bump Knobs, Outer Spools, Cutting Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades, Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains Techtronic Industries North...
... back to the owner after repair or replacement will be cause for RYOBI® brand outdoor products (Authorized Ryobi Service Center). The warranty does not extend to repairs made necessary by normal wear or by an authorized service dealer. Bump Knobs, Outer Spools, Cutting Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades, Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains Techtronic Industries North...
User Manual 3
Page 3
NUMBER Frame 1 Fuel Tank Assembly 1 Fuel Cap Assembly 1 Cable Clamp 1 Hex Nut (M5 4 Screw (10-14 x 14 mm 4 Spring 3 Screw (10-14 x 16 mm 3 Strap 1 Shoulder Screw (M6, Special 4 Ignition Module Assembly 1 Throttle Cable 1 Clamp Assembly (Large 1 Tube 1 Clamp Assembly (Small 1 Upper Blower Tube Bushing 1 Handle Assembly 1 Upper Tube 1 Cruise Lever 1 Washer (OD12 x ID4.3 x 1.5t 1 21 660666001 22 518255005 23 760338004 24 518150001 25 660629001 26 660734001 27 518273002 28 570543001 29 580537001 30...
NUMBER Frame 1 Fuel Tank Assembly 1 Fuel Cap Assembly 1 Cable Clamp 1 Hex Nut (M5 4 Screw (10-14 x 14 mm 4 Spring 3 Screw (10-14 x 16 mm 3 Strap 1 Shoulder Screw (M6, Special 4 Ignition Module Assembly 1 Throttle Cable 1 Clamp Assembly (Large 1 Tube 1 Clamp Assembly (Small 1 Upper Blower Tube Bushing 1 Handle Assembly 1 Upper Tube 1 Cruise Lever 1 Washer (OD12 x ID4.3 x 1.5t 1 21 660666001 22 518255005 23 760338004 24 518150001 25 660629001 26 660734001 27 518273002 28 570543001 29 580537001 30...
User Manual 3
Page 5
... Volute Duct 1 Power Head 1 5 RYOBI BACKPACK BLOWER - RY08420 KEY PART NO. Key Nos. 3-9 and 25-26 1 Motor Cover 1 Starter Grip 1 Eyelet 1 Container Spring Assembly 1 Starter Rope 1 Solid Pulley 1 Starter Cap 1 Rivet 2 Fan Disk 1 Lock Nut (M8 1 Screw (M5 x 25 mm, T-25 Torx 3 Screw (M6 x 14 mm 4 KEY PART NO. NUMBER 1 660629005 2 308563013 3 524587002 4 511731004 5 638088002 6 638033002 7 900849002 8 521519001 9 638980001 10 679407001 11 679052003 12 678018001 13 660613001 14 661431003 PARTS LIST (FIGURE B) DESCRIPTION...
... Volute Duct 1 Power Head 1 5 RYOBI BACKPACK BLOWER - RY08420 KEY PART NO. Key Nos. 3-9 and 25-26 1 Motor Cover 1 Starter Grip 1 Eyelet 1 Container Spring Assembly 1 Starter Rope 1 Solid Pulley 1 Starter Cap 1 Rivet 2 Fan Disk 1 Lock Nut (M8 1 Screw (M5 x 25 mm, T-25 Torx 3 Screw (M6 x 14 mm 4 KEY PART NO. NUMBER 1 660629005 2 308563013 3 524587002 4 511731004 5 638088002 6 638033002 7 900849002 8 521519001 9 638980001 10 679407001 11 679052003 12 678018001 13 660613001 14 661431003 PARTS LIST (FIGURE B) DESCRIPTION...
User Manual 3
Page 7
... 10 523924001 11 900777004 12 900777005 13 660612001 DESCRIPTION QTY Screw (M5, Special 2 Primer Assembly 1 Spring Washer (M5 2 Gasket 1 Screw (M5 x 50 mm, Soc. MODEL NO. Hd 2 Screw (M5 x 0.8 in 2 Air Box Base 1 Washer (ID5.8 x OD11.5 x 1.7t 2 Carburetor (Inc. RYOBI BACKPACK BLOWER - Key No. 26 1 Air Box Cover 1 Air Filter Box 1 Air Filter 1 Bolt (1/4-20 x 18 mm 2 KEY PART NO. NUMBER 14 901653007 15 309330001 16 678067001 17 631049001 18...
... 10 523924001 11 900777004 12 900777005 13 660612001 DESCRIPTION QTY Screw (M5, Special 2 Primer Assembly 1 Spring Washer (M5 2 Gasket 1 Screw (M5 x 50 mm, Soc. MODEL NO. Hd 2 Screw (M5 x 0.8 in 2 Air Box Base 1 Washer (ID5.8 x OD11.5 x 1.7t 2 Carburetor (Inc. RYOBI BACKPACK BLOWER - Key No. 26 1 Air Box Cover 1 Air Filter Box 1 Air Filter 1 Bolt (1/4-20 x 18 mm 2 KEY PART NO. NUMBER 14 901653007 15 309330001 16 678067001 17 631049001 18...
User Manual 4
Page 3
MODEL NO. RY08420A PARTS LIST (FIGURE A) KEY PART NO. NUMBER Frame 1 Fuel Tank Assembly 1 Fuel Cap Assembly 1 Cable Clamp 1 Wrench (L-25 1 Screw (10-14 x 14 mm 4 Spring 3 Screw (10-14 x 16 mm 3 Strap 1 Harness Snap Fastener 4 Ignition Module Assembly 1 Throttle Cable 1 Clamp Assembly (Large 1 Tube 1 Clamp Assembly (Small 1 Upper Blower Tube Bushing 1 Left Hand Handle 1 Upper Tube 1 Cruise Lever 1 Washer (OD12 x ID4.3 x 1.5t 1 21 660666001 22 518255005 23 760338004 24 518150001 25 660629001 26 660734001 27...
MODEL NO. RY08420A PARTS LIST (FIGURE A) KEY PART NO. NUMBER Frame 1 Fuel Tank Assembly 1 Fuel Cap Assembly 1 Cable Clamp 1 Wrench (L-25 1 Screw (10-14 x 14 mm 4 Spring 3 Screw (10-14 x 16 mm 3 Strap 1 Harness Snap Fastener 4 Ignition Module Assembly 1 Throttle Cable 1 Clamp Assembly (Large 1 Tube 1 Clamp Assembly (Small 1 Upper Blower Tube Bushing 1 Left Hand Handle 1 Upper Tube 1 Cruise Lever 1 Washer (OD12 x ID4.3 x 1.5t 1 21 660666001 22 518255005 23 760338004 24 518150001 25 660629001 26 660734001 27...
User Manual 4
Page 5
... 1 Eyelet Support 1 5 MODEL NO. Key Nos. 3-9 and 25-26 1 Motor Cover 1 Starter Grip 1 Eyelet 1 Container Spring Assembly 1 Starter Rope 1 Solid Pulley 1 Starter Cap 1 Power Head 1 Fan Disk 1 Lock Nut (M8 1 Screw (M5 x 25 mm, T-25 Torx 3 KEY PART NO. NUMBER 1 660629005 2 308563013 3 524587002 4 511731004 5 638088002 6 638033001 7 900849002 8 521519001 9 638980001 10 311017001 11 679052003 12 678018001 13 660613001 PARTS LIST (FIGURE B) DESCRIPTION QTY Screw (10-14 x 19 mm, T-25 Torx 17 Engine Cover w/Starter Assembly (Inc. RYOBI BACKPACK BLOWER -
... 1 Eyelet Support 1 5 MODEL NO. Key Nos. 3-9 and 25-26 1 Motor Cover 1 Starter Grip 1 Eyelet 1 Container Spring Assembly 1 Starter Rope 1 Solid Pulley 1 Starter Cap 1 Power Head 1 Fan Disk 1 Lock Nut (M8 1 Screw (M5 x 25 mm, T-25 Torx 3 KEY PART NO. NUMBER 1 660629005 2 308563013 3 524587002 4 511731004 5 638088002 6 638033001 7 900849002 8 521519001 9 638980001 10 311017001 11 679052003 12 678018001 13 660613001 PARTS LIST (FIGURE B) DESCRIPTION QTY Screw (10-14 x 19 mm, T-25 Torx 17 Engine Cover w/Starter Assembly (Inc. RYOBI BACKPACK BLOWER -
User Manual 4
Page 7
... Assembly 1 Lock Nut (M8 1 Washer (ID9 x OD17.7 x 1.1t 1 Flywheel Assembly 1 Short Block Assembly 1 Spark Plug (RCJ4 1 Gasket 1 Heat Dam 1 Spacer 1 Screw (M4 x 12 mm, Pan Hd 3 Washer (Heat Dam 2 Choke Lever 1 7 RYOBI BACKPACK BLOWER - RY08420A PARTS LIST (FIGURE C) KEY PART NO. MODEL NO. NUMBER 1 660510009 2 300780002 3 678343002 4 562927001 5 660347001 6 661832001 7 523923001 8 671080001 9 308054079 10 523924001 11 900777004 12 900777005 13 660612001 DESCRIPTION QTY Screw (M5, Special 2 Primer Assembly 1 Spring Washer (M5 2 Gasket 1 Screw...
... Assembly 1 Lock Nut (M8 1 Washer (ID9 x OD17.7 x 1.1t 1 Flywheel Assembly 1 Short Block Assembly 1 Spark Plug (RCJ4 1 Gasket 1 Heat Dam 1 Spacer 1 Screw (M4 x 12 mm, Pan Hd 3 Washer (Heat Dam 2 Choke Lever 1 7 RYOBI BACKPACK BLOWER - RY08420A PARTS LIST (FIGURE C) KEY PART NO. MODEL NO. NUMBER 1 660510009 2 300780002 3 678343002 4 562927001 5 660347001 6 661832001 7 523923001 8 671080001 9 308054079 10 523924001 11 900777004 12 900777005 13 660612001 DESCRIPTION QTY Screw (M5, Special 2 Primer Assembly 1 Spring Washer (M5 2 Gasket 1 Screw...
