User manual RYOBI 990

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Manual abstract: user guide RYOBI 990

Detailed instructions for use are in the User's Guide.

 [. . . ] CYLINDER & CRANKCASE ASSEMBLY - MODEL 975r/990r
(Serial No.  [. . . ] 181060 181034 181061 181062 181003 181063 181064 181065 180929 181066 611063 181067 181094 610676 180142 181068 181069 180986 181562

Description Carb Mount Insulator Hex Nut Intake Gasket Intake Baffle Screw (M5 X 18. 7mm) Fan Housing Tinnerman Nut Spacer Flywheel Module Screw Ground Tab Ignition Module 18" Lead Wire Set Flywheel Key Flywheel Starter Pawl Repair Kit O. E. M. Carburetor Repair Kit Gasket-Diaphragm Repair Kit Carburetor Limiter Cap Set (Walbro) Carburetor Limiter Cap Set (Zama)

not shown

Issued 9/97

CLUTCH,  STARTER MODULE & FUEL TANK ASSEMBLIES MODEL 975r/990r (Serial No. 611000001 and greater)
7 6 5

16

4

15

3 2 14 12 11 10 13

1

13 20 21

9

8

19 23

18

22

17

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Part No. 612468 181070 181071 180232 181072 181837 181074 181075 613102 180535 613103 181076 181077 181078 611061

Description Compression Spring Screw (M5 X 32mm) Clutch Housing Clutch Drum Isolator Clutch Clutch Washer Starter Housing Starter Spring Starter Pulley Starter Rope Starter Pulley Retainer Screw (M4 X 12. 7mm) Rope Guide Retainer Rope Guide

Item 16 17 18 19 20 21 22 23 * *

Part No. 181079 181080 181081 181082 181083 181084 181085 181086 181102 181087

Description Starter Handle Fuel Tank Bracket Screw Fuel Tank Bracket Fuel Tank (includes items 20,  22 & 23) Fuel Cap Fuel Tank Pad Fuel Line Assembly W/Filter Fuel Return Line Clutch Housing Assembly W/Drum (items 3 & 4) Starter Module Assembly (items 8-13,  15 & 16)

*

not shown

Issued 9/97

HANDLE & UPPER BOOM ASSEMBLY - MODEL 975r/990r
(Serial No. 611000001 and greater)
1 2 5 3 6 4 6

26 25 7 17

8 24

18 9 12

19 11 10 23 13 16 15 14 5 20

21

22

Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Part No.  [. . . ] Description 1 181092 Upper Drive Shaft and Housing Assembly 2 181616 Click-Link System (incldes 3 & 4) 3 181617 Bolt 4 181618 Adjustment Knob 5 180804 Lower Drive Shaft Housing 6 613300 Flexible Drive Shaft 7 147539 Guard Mounting Hardware 8 147677 Mounting Hardware & Grease Plug Assembly 9 147488 Gearbox (items 8,  14,  17 and 18) 10 683304 Guard Mounting Screws 11 180387 Guard & Blade Assembly (includes 12) 12 682061 Blade Assembly 13 147492 Guard Mount 14 147489 Driver 15 145873 Brush Blade with Cover 16 613231 Blade Cover 17 147490 Blade Retainer Washer 18 147491 Lock Nut 19 612483 Spool Shaft 20 683301 Outer Spool and Eyelet Assembly 21 612026 Retainer 22 610636 Spring 23 147495 Inner Reel 24 180814 Bump Head Knob Assembly * 613226 Locking Rod Tool * 682075 Shoulder Strap Assembly Optional Accessories * 180120 Cutting Line (50 ft) * 147345 Spool and Line Assembly (40 ft) * 147498 Complete Cutting Head Assembly (items 19-24) * 180014 Blade Retaining Kit (items 17 and 18) * 181100 SAE 30 Oil (48 100ml Bottles) * 181101 Oil Fill Spout * not shown

2

5 6 12 10 8

7

9 11

13

12 7 14 15 16

17

19

17 18

20

21 22

23

24

Issued 9/97 [. . . ]

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