PARTS MANUAL EX27 ENGINE. Models. PUB-EP1679 Rev. 07/05

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Lawrence Austin
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1 PARTS MANUAL Models EX27 ENGINE PUB-EP1679 Rev. 07/05

3 HOW TO USE THIS MANUAL Robin engines are identifi ed by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called specifi cations. Each specifi cation will be unique in some way. The difference may only be the paint color or it may have a different type of PTO or some other signifi cant difference. In order the identify the correct service part number, it is important to confi rm the specifi cation and code numbers for your engine. The specifi cation and code number together are know as the PRODUCT NUMBER. All Robin 4 cycle engines have a Product Number label similar to the label illustrated below. The Product Number Label has a 15 digit alphanumeric string that consists of the SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits). Please note the illustration below: E X X X X X SPEC NO. (11 digits) CODE NO. (4 digits) PRODUCT NO. (15 digits) EX

4 MANUAL LAYOUT SECTION NAME Parts are broadly classifi ed according to their functions. Refer to the Group Index (table of contents) for respective section name. 2. FIG. No. The FIG. number indexes the reference and part numbers to the illustration. Figure numbers that vary only in the tens place (i.e..: 700 and 710) are in a group of the same section (i.e..:electrical Device Group). 3. REF. No. The Reference number identifi es the part illustration with the corresponding part number in the part list. 4. SUBASSEMBLY SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly part reference number is indicated by the number led by "-" such as "-1", "-2". 5. PART NUMBER It is the number assigned for sales unit. Use the PART No. when making an order. 6. DESCRIPTION It is designation of the part. 7. QTY. Quantity of each part used for each product. 8. REMARKS This gives a distinctive feature and/or a supplementary comment for the type, the specifi cation, and the part concerned. It also shows part number(s) interchangeable for the part. 9. FROM-TO This section shows the CODE No. to indicate the history of progress in which improved parts have been introduced in the product. The FROM-TO CODE No. helps to identify PART No. being employed in the product concerned. See the examples below: - The part is used in the product irrespective of CODE No The part is used in the products with CODE No. of 2101 and after this number The part is used in the products with CODE No. of 2100 and before this number. EX

5 GROUP INDEX Group Name Page CRANKCASE GROUP... 6 CRANKSHAFT GROUP... 8 INTAKE and EXHAUST GROUP GOVERNOR GROUP COOLING and STARTING GROUP FUEL, LUBRICANT GROUP CARBURETOR GROUP ELECTRIC DEVICE GROUP ACCESSORY GROUP INDEX OF DESCRIPTION SYMBOLS SYMBOL DESCRIPTION AY...ASSEMBLY CP...COMPLETE EX...EXPORT (from Japan) FIG....FIGURE FR....FRONT "...INCH INCL....INCLUDE ~L...LITER L=...LENGTH (in. mm) L.H. (LH)...LEFT-HAND SIDE MECH...MECHANICAL NO (NON)...NONE OPT...OPTIONAL O.S....OVER SIZE SYMBOL DESCRIPTION P=...PITCH (in mm) P.T.O. (PTO)...POWER TAKE OFF REF....REFERENCE R.H. (RH)...RIGHT HAND SIDE RR....REAR STD....STANDARD SW...SWITCH T=...THICKNESS (in mm) UN...UNIT U.S...UNDER SIZE ~V...VOLTAGE ~W...WATT W/...WITH W/O...WITHOUT EX

6 SECTION 1 CRANKCASE GROUP FIG. 100 EX

7 SECTION 1 CRANKCASE GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG CRANKCASE CP CRANKCASE CP 1 w/ Oil Sensor VALVE GUIDE STEM SEAL OIL SEAL BALL BEARING PIPE KNOCK STUD STUD OIL SEAL PLUG GASKET MAIN BEARING COVER CP 1 SAE MAIN BEARING COVER CP 1 Metric OIL SEAL BALL BEARING GOVERNOR GEAR CP GOVERNOR SLEEVE OIL GAUGE FILLER PLUG GASKET GASKET FLANGE BOLT CYLINDER HEAD CP 1 ~ CYLINDER HEAD CP ~ GASKET, head FLANGE BOLT FLANGE BOLT ROCKER COVER CP GASKET, rocker cover PIPE KNOCK FLANGE BOLT RUBBER PIPE GASKET SET EX GASKET IN A TUBE Gasket Sets include the following: Fig. 100 items 90, 280, 620 and 690 Fig. 300 items 340 and 550 EX

8 SECTION 2 CRANKSHAFT GROUP FIG. 200 EX

9 SECTION 2 CRANKSHAFT GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG CRANKSHAFT CP 1 1" key, 3/8 tap CRANKSHAFT CP 1 1" Pump CRANKSHAFT CP 1 SAE taper CRANKSHAFT CP 1 Metric 25mm key CRANKSHAFT CP 1 Metric Pump 25mm CRANKSHAFT CP 1 Metric Taper FLANGE NUT WOODRUFF KEY CONNECTING ROD AY CONNECTING ROD BOLT PISTON PIN PISTON 1 STD PISTON 1 Oversize 0.25mm PISTON 1 Oversize 0.50mm PISTON RING SET 1 STD PISTON RING SET 1 Oversize 0.25mm PISTON RING SET 1 Oversize 0.50mm CLIP EX

10 SECTION 3 INTAKE and EXHAUST GROUP - NEW STYLE FIG EX

11 SECTION 3 INTAKE and EXHAUST GROUP - NEW STYLE REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG CAMSHAFT CP ~ PIN, camshaft ~ O RING ~ PIN, spring ~ RELEASE LEVER ~ CLIP ~ RETURN SPRING ~ VALVE SPRING ~ RETAINER VALVE SPRING ~ INTAKE VALVE ~ EXHAUST VALVE ~ KA0-31 COLLET VALVE ~ TIMING CHAIN CP ~ TENTIONER ~ SPRING, tentioner ~ PIN, tentioner ~ CHAIN GUIDE ~ PIN, rocker ~ CLIP ~ ROCKER ARM AY, intake ~ ROCKER ARM AY, exhaust ~ ADJUST SCREW ~ NUT ~ FLANGE BOLT ~ MUFFLER CP ~ MUFFLER CP 1 w/ spark arrestor ~ SPARK ARRESTOR ~ TAPPING SCREW ~ MUFFLER COVER CP ~ GASKET, muffl er ~ FLANGE NUT ~ TAPPING BOLT ~ FLANGE BOLT ~ FLANGE BOLT ~ SCREEN CP ~ TAPPING SCREW ~ DEFLECTOR ~ TAPPING SCREW ~ 300 EX

12 SECTION 3 INTAKE and EXHAUST GROUP - OLD STYLE FIG. 300 EX

13 SECTION 3 INTAKE and EXHAUST GROUP - OLD STYLE REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG CAMSHAFT CP 1 ~ PIN, camshaft 1 ~ O RING 1 ~ PIN, spring 1 ~ RELEASE LEVER 1 ~ CLIP 1 ~ RETURN SPRING 1 ~ VALVE SPRING 2 ~ RETAINER VALVE SPRING 2 ~ INTAKE VALVE 1 ~ EXHAUST VALVE 1 ~ KA0-31 COLLET VALVE 4 ~ TIMING CHAIN CP 1 ~ TENTIONER 1 ~ SPRING, tentioner 1 ~ PIN, tentioner 1 ~ CHAIN GUIDE 1 ~ PIN, rocker 1 ~ ROCKER ARM AY, intake 1 ~ ROCKER ARM AY, exhaust 1 ~ ADJUST SCREW 1 ~ ADJUST SCREW 1 ~ NUT 1 ~ NUT 1 ~ FLANGE BOLT 1 ~ MUFFLER CP 1 ~ MUFFLER CP 1 w/ spark arrestor ~ SPARK ARRESTOR 1 ~ TAPPING SCREW 1 ~ MUFFLER COVER CP 1 ~ GASKET, muffl er 1 ~ FLANGE NUT 2 ~ TAPPING BOLT 2 ~ FLANGE BOLT 1 ~ FLANGE BOLT 1 ~ SCREEN CP 1 ~ TAPPING SCREW 2 ~ DEFLECTOR 1 ~ TAPPING SCREW 2 ~ FLANGE NUT 2 ~ FLANGE BOLT 1 ~ EX

14 SECTION 3 INTAKE and EXHAUST GROUP FIG. 310 Old Style A B EX

15 SECTION 3 INTAKE and EXHAUST GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG AIR CLEANER AY 1 Foam 310A AIR CLEANER AY 1 Dual element, New Style 310B AIR CLEANER AY 1 Dual element, Old Style 310B CASE 1 Foam 310A CASE 1 Dual element, New Style 310B CASE 1 Dual element, Old Style 310B PACKING 1 Dual element 310B GASKET COVER COVER 1 310B LABEL NUT 1 Dual element 310B WASHER 1 Dual element, New Style 310B NUT 1 Dual element, New Style 310B ELEMENT 1 Foam 310A ELEMENT 1 Dual element 310B FLANGE NUT FLANGE BOLT 1 Foam 310A EX

16 SECTION 3 INTAKE and EXHAUST GROUP FIG. 320 Cyclone Pre-Cleaner Low Profile C D -230 EX

17 SECTION 3 INTAKE and EXHAUST GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG AIR CLEANER AY 1 Cyclone Pre-Cleaner 320C AIR CLEANER AY 1 Low Profi le 320D ELBOW, BASE 1 320C BODY CP 1 320D PACKING 1 320C SEAL 1 320C GASKET PIPE, PRE-CLEANER 1 320C COVER, CYCLONE 1 320C COVER, LOW PROFILE 1 320D LABEL 1 320C WING NUT 3 320C WASHER 2 320C DUST CASE, CUP 1 320C PAN SCREW 2 320C ELEMENT AY 1 320C ELEMENT AY 1 320D FLANGE NUT 1 320C FLANGE BOLT 1 320C EX

18 SECTION 4 GOVERNOR GROUP - NEW STYLE FIG EX

19 SECTION 4 GOVERNOR GROUP - NEW STYLE REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG GOVERNOR LEVER ~ GOVERNOR SHAFT ~ GOVERNOR ROD CP ~ ROD SPRING ~ CLIP ~ BOLT and WASHER AY ~ NUT ~ GOVERNOR SPRING ~ SPEED CONTROL LEVER ~ STOP PLATE ~ WASHER ~ FRICTION WASHER ~ SCREW ~ SPRING, adjust ~ CLAMP ~ SCREW and WASHER AY ~ SCREW ~ SELF LOCK NUT ~ RETURN SPRING ~ FLANGE BOLT ~ LINK ROD ~ SPEED CONTROL AY 1 Incl. the following items: ~ 310,340,350,355,360,365,395, 396,435,440,450,480,486 EX

20 SECTION 4 GOVERNOR GROUP - OLD STYLE FIG. 400 EX

21 SECTION 4 GOVERNOR GROUP - OLD STYLE REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG GOVERNOR LEVER 1 ~ GOVERNOR SHAFT 1 ~ GOVERNOR ROD CP 1 ~ ROD SPRING 1 ~ CLIP 1 ~ BOLT and WASHER AY 1 ~ NUT 1 ~ GOVERNOR SPRING 1 ~ SPEED CONTROL LEVER 1 ~ STOP PLATE 1 ~ WASHER 1 ~ FRICTION WASHER 1 ~ SCREW 1 ~ SPRING, adjust 1 ~ NUT 1 ~ CLAMP 1 ~ SCREW and WASHER AY 1 ~ SPEED CONTROL BRKT CP 1 ~ SCREW 1 ~ SELF LOCK NUT 1 ~ RETURN SPRING 1 ~ FLANGE BOLT 2 ~ SPEED CONTROL AY 1 Incl. the following items: ~ ,340,350,355,360,365,395, 396,435,440,450,480,486 EX

22 SECTION 5 COOLING and STARTING GROUP FIG. 500 EX

23 SECTION 5 COOLING and STARTING GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG BLOWER HOUSING CP 1 Black BLOWER HOUSING 1 Yellow LABEL, trademark FLANGE BOLT BAFFLE 1 CP, case BAFFLE 2, head BOLT FLANGE BOLT RECOIL STARTER AY SPIRAL SPRING REEL STARTER ROPE STARTER KNOB RATCHET FRICTION SPRING RATCHET SPRING STARTER PULLEY FRICTION PLATE CENTER SCREW FLANGE BOLT EX

24 SECTION 6 FUEL, LUBRICATION GROUP FIG EX

25 SECTION 6 FUEL, LUBRICATION GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG FUEL TANK CP 1 Black FUEL TANK CP 1 Yellow LABEL, warning LABEL, model FUEL TANK CAP CP 1 leakproof FUEL FILTER UNION FLANGE NUT FLANGE BOLT RUBBER PIPE X HOSE CLAMP CHOKE LEVER CP REMOTE CHOKE CONTROL SPRING GASKET CLAMP BOLT and WASHER SCREW H3 INSULATOR CP H3 GASKET 1, insulator H3 GASKET 2, insulator EX

26 SECTION 6 FUEL, LUBRICATION GROUP FIG EX

27 SECTION 6 FUEL, LUBRICATION GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG CARBURETOR 1 Foam CARBURETOR 1 Dual Element CARBURETOR 1 Low Profi le THROTTLE VALVE SCREW CHOKE VALVE 1 Foam, Dual Element CHOKE VALVE 1 Low Profi le SLOW JET CHOKE SHAFT 1 Foam, Dual Element CHOKE SHAFT 1 Low Profi le THROTTLE SHAFT SCREW NEEDLE VALVE AY PIN, fl oat lever FLOAT BODY GASKET GASKET, chamber FLOAT, chamber MAIN JET 1 Foam, Low Profi le MAIN JET 1 Dual Element DRAIN SCREW ADJUST SCREW SPRING GASKET COLLAR BUSHING O RING O RING PACKING CUP FUEL STRAINER AY * COLLAR, upper 1 Low Profi le 610 * COLLAR, lower 1 Low Profi le 610 EX

28 SECTION 7 ELECTRIC DEVICE GROUP FIG For 200 Watt Charging EX

29 SECTION 7 ELECTRIC DEVICE GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG FLYWHEEL CP 1 STD FLYWHEEL CP 1 15W, 40W Charging FLYWHEEL CP 1 200W Charging FLYWHEEL CP 1 15W, 40W w/o ring gear FLYWHEEL CP 1 200W w/o ring gear IGNITION COIL CP CHARGE COIL 1 15W CHARGE COIL 1 40W CHARGE COIL 1 200W REGULATOR RECTIFIER 1 200W RECTIFIER DIODE 1 15W, 40W BOLT and WASHER AY BOLT and WASHER 2 15W BOLT and WASHER 2 40W SCREW and WASHER 4 200W WIRE 1 CP 1 w/o oil sensor H1 WIRE 2 CP 1 w/ oil sensor H1 WIRE 5 CP 1 Electric Start SWITCH AY 1 Old style X TAPPING SCREW SPARK PLUG SPARK PLUG CAP OIL SENSOR CP KU CONTROL AY, oil sensor 1 New Style, w/ stop switch ~ 700 KU CONTROL AY, oil sensor 1 New Style, w/o stop switch ~ 700 KU CONTROL AY, oil sensor 1 Old style ~ BOLT and WASHER TAPPING SCREW CLAMP FLANGE BOLT CLAMP TAPPING BOLT EX

30 SECTION 7 ELECTRIC DEVICE GROUP - ELECTRIC STARTER FIG EX

31 SECTION 7 ELECTRIC DEVICE GROUP - ELECTRIC STARTER REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG STARTER MOTOR YOKE CP BRUSH, starter SPRING, starter brush HOLDER, brush INSULATOR ARMATURE AY OVER RUNNING CLUTCH HOUSING CP BUSH, starter housing FRAME CP BUSH, starter LEVER MAGNETIC SWITCH COLLAR, pinion stop SNAP RING THROUGH BOLT NUT NUT SPRING WASHER NUT EX

32 SECTION 7 ELECTRIC DEVICE GROUP - CONTROL BOX FIG. 720 Key switch EX

33 SECTION 7 ELECTRIC DEVICE GROUP - CONTROL BOX REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG KEY SWITCH KEY CONTROL BOX EX

34 SECTION 9 ACCESSORY GROUP FIG. 900 EX

35 SECTION 9 ACCESSORY GROUP REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG H0 ACCESSORY TOOL KIT EX

36 PRINTED IN THE USA

PARTS MANUAL EX13, EX17, EX21 ENGINE. Models. PUB-EP1676 Rev. 07/05

PARTS MANUAL EX13, EX17, EX21 ENGINE. Models. PUB-EP1676 Rev. 07/05 PARTS MANUAL Models EX13, EX17, EX21 ENGINE PUB-EP1676 Rev. 07/05 940 Lively Blvd. Wood Dale, IL 60191 Phone: 630-350-8200 Fax: 630-350-8212 e-mail: sales@robinamerica.com www.robinamerica.com Copyright