Ryobi RY28100 Repair Sheet

Model Numbers ­­– RY28100, RY28120 & RY28140 Figure A 1 2 3 14 4 13 16 15 19 20 31 17 18 5 6 7 10 30 27 12 22 23 8 2 21 9 11 26 29 25 28 SEE FIGURE B 24

Model Numbers ­­– RY28100, RY28120 & RY28140 18 678008001 Washer...................................................................1 19 518949001 Wing Nut................................................................1 20 518696001 Throttle Trigger.......................................................1 21 308842004 Throttle and Lead Assembly..................................1 22 660925011 Screw (M4 x 8 mm, Torx T.F.)................................1 23 678029002 Hex Nut (M6)..........................................................1 24 690694002 Throttle Spring.......................................................1 25 940654088 Combustion Warning Label...................................1 26 940705011 Logo Label.............................................................1 27 941788001 Primer Label...........................................................1 28 900952011 Air Filter..................................................................1 29 940216004 Start Run Label......................................................1 30 941790001 Fuel Tank Warning Label........................................1 31 308045006 Boom Clamp..........................................................1 Not Shown: 990000224 Operator’s Manual (RY28100)................................1 990000227 Operator’s Manual (RY28120 and RY28140).........1 2-5-13 (Rev:01) 1 660563002 Screw (M4 x 20 mm)..............................................4 2 308869002 Control Handle Assembly......................................1 3 518695001 Trigger Lock...........................................................1 4 638431001 Strap Hanger..........................................................1 5 760700002 Switch (Momentary Contact).................................1 6 570234002 Rear Handle...........................................................1 7 870174001 * Spark Plug (Champion RCJ6Y)..............................1 8 690140011 Compression Spring..............................................1 9 525105002 Air Box Cover.........................................................1 10 310817004 Fuel Cap Assembly (1.5 in. Diameter)....................1 11 940734131 Label......................................................................1 12 660697002 Bolt (M6 x 20 mm)..................................................1 13 308470013 Upper Boom Assembly..........................................1 14 940657034 Warning Decal........................................................1 15 308991001 Front Handle Assembly (Inc. Key Nos. 16-19).......1 16 518738001 Front Handle..........................................................1 17 660643008 Bolt (1/4-20 x 40 mm)............................................1 PARTS LIST (FIGURE A) KEY PART NO. NUMBER DESCRIPTION QTY KEY PART NO. NUMBER DESCRIPTION QTY * STANDARD HARDWARE ITEM – MAY BE PURCHASED LOCALLY

Model Numbers ­­– RY28100, RY28120 & RY28140 Figure B 26 4 5 6 7 8 9 10 11 12 3 13 14 15 16 17 18 19 20 21 22 23 3 24 25 27 28 29 30 31 32 34 33 35 2 3 1 36

Model Numbers ­­– RY28100, RY28120 & RY28140 1 525485002 Starter Grip............................................................... 1 2 900849012 Starter Rope............................................................. 1 3 660466001 Screw (M4 x 18 mm).............................................. 11 4 660970001 Screw (M4 x 17 mm)................................................ 4 5 308671027 Starter Housing Assembly....................................... 1 6 300960002 Clutch Assembly...................................................... 1 7 638090001 Washer..................................................................... 1 8 518692001 Starter Baffle............................................................ 1 9 638033001 Spring and Container............................................... 1 10 310022003 Easy Starter Assembly............................................. 1 11 638389001 Pulley Retainer......................................................... 3 12 638284002 Spacer Tube............................................................. 1 13 650017001 Washer..................................................................... 1 14 308811007 Flywheel Assembly................................................... 1 15 308675051 Fuel Tank and Cap Assembly .................................. 1 16 660970002 Screw (M4)............................................................... 3 17 660454007 Bolt (M5 x 70 mm).................................................... 2 18 525106001 Air Box Base............................................................ 1 19 308054077 Carburetor Assembly............................................... 1 20 901552001 Outer Heat Dam Gasket........................................... 1 21 518685001 Air Baffle................................................................... 1 22 518497001 Heat Dam................................................................. 1 23 901551001 Inner Heat Dam Gasket............................................ 1 24 518504002 Rear Housing........................................................... 1 25 308892014 Short Block Assembly (Inc. Key Nos. 26-28)........... 1 26 660925003 Screw (M4 x 12 mm)................................................ 6 27 638337005 Crankcase Cover..................................................... 1 28 901550001 Crankcase Cover Gasket......................................... 1 29 901452001 Muffler Gasket.......................................................... 1 30 308990011 Muffler Assembly..................................................... 1 31 638442001 Muffler Housing........................................................ 1 32 660638003 Muffler Bolt (10-24 x 2-1/8 in.)................................. 2 33 308863024 Electrical Lead Wire Assembly................................. 1 34 850108031 Ignition Module........................................................ 1 35 660968001 Screw (M4 x 19 mm)................................................ 2 36 310976001 Fuel Filter.................................................................. 1 PARTS LIST (FIGURE B) KEY PART NO. NUMBER DESCRIPTION QTY KEY PART NO. NUMBER DESCRIPTION QTY

Model Numbers ­­– RY28100, RY28120 & RY28140 17 16 15 14 13 10 9 8 11 12 6 4 7 3 2 1 5 Key Service No. Number Description Qty. Key Service No. Number Description Qty. 1 940726013 Logo Label....................................................................................1 2 940657032 Warning Label...............................................................................1 3 308038010 Curved Shaft Assembly................................................................1 4 120642001 Washer and Bolt Assembly..........................................................1 5 308052001 Curved Shaft Grass Deflector.......................................................1 6 310643003 String Head Housing....................................................................1 7 679958001 Spring...........................................................................................1 8 310412003 Spool............................................................................................1 9 308042002 Spool Retainer..............................................................................1 10 309562005 String Head Assembly (Inc. Key Nos. 6-8)...................................1 11 518019002 Hanger Cap..................................................................................1 Figure C Model RY28140 1 940726013 Logo Label....................................................................................1 2 940657032 Warning Label...............................................................................1 3 308035038 Straight Shaft Assembly...............................................................1 4 660641001 Screw (10-24 x 5/8 in.).................................................................1 5 518019002 Hanger Cap..................................................................................1 6 518367001 Spacer..........................................................................................1 7 660642001 Screw (1/4-20 x 1-1/4 in.).............................................................1 8 308210009 Gear Head....................................................................................1 9 678011002 Washer..........................................................................................1 10 678019002 Arbor.............................................................................................1 11 660886001 Wing Screw (1/4-20 x 1-1/4 in.)....................................................1 12 308473001 Grass Deflector Assembly (Inc. Key No. 11)................................ 1 13 310643003 String Head Housing....................................................................1 14 679958001 Spring...........................................................................................1 15 310412003 Spool............................................................................................1 16 308042003 Spool Retainer..............................................................................1 17 309562005 String Head Assembly (Inc. Key Nos. 13-15)............................... 1 10 6 7 8 9 4 5 3 2 1 11 Figure C Model RY28120