Saito FA-120 Special Instruction Manual page 8

Large single cylinder 4-stroke engines
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12
T R O U B L E S H O O T I N G
SYMPTOM
CAUSE
Engine fails to
Low voltage on
start
starting battery
Bad glow plug(s)
Insufficient priming
"Flooded" due to
excessive priming
Engine fires but
Over-primed
does not run
Engine starts but
Mixture too rich
slows down and
then stops
Engine starts,
Mixture too lean
speeds up, and
then quits
Engine quits
Mixture too rich
when starter
battery is
removed
Incorrect glow plugs
Incorrect or bad fuel
In the event that none of the above procedures results in the engine running
properly, contact our service department for suggestions:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
217-355-9511 (Mon–Fri 8:00–5:00 CST)
CORRECTIVE ACTION
Replace/recharge the
starting battery
Inspect/replace bad glow plug
Repeat priming procedure
Disconnect battery, remove the
glow plugs, and rotate the
propeller several times to
"clear" the cylinder
Disconnect battery and rotate
propeller several times to
"clear" cylinder
Close high-speed needle valve
/
turn and start again. Repeat
1
2
until engine is running smoothly.
Open high-speed needle valve
1
/
turn and start again. Repeat
2
until engine is running smoothly.
Close high-speed needle valve
1
/
turn and restart
2
Change glow plugs
Change fuel
Large Single Cylinder Cross-Reference Chart
Part
M
FF
FA-120S(H)
FA-120SGK
01
Cylinder Left
120S01A
120SGK01A
06
Piston
120S06
120S06
07
Piston Pin
120S07
120S07
08
Piston Pin Retainer
120S08
120S08
09
Piston Ring
120S09
120S09
10
Connecting Rod
120S10C
120S10C
14
Cylinder Screw Set
120S14
120S14
15
Crankcase
120S15B
120SGK15B
17
Rear Cover (A)
120S17A
150S17
19
Breather Nipple
6519
6519
20
Front Ball Bearing
120S20A
120S20A
21
Main Ball Bearing
––
––
22
Rear Ball Bearing
120S22
120S22
23
Crankshaft
120S23B
120S23B
24
Pinion-Crankshaft
––
––
25
Pinion Gear-Pin
––
––
26
Collar, Crankshaft
––
––
27
Taper Collet & Drive Flange
120S27A
120S27A
28
Prop Washer & Nut
170R328
170R328
29
Prop Nut, Spinner
120S29
120S29
30
Prop Nut, Electric Starter
120S30
120S30
31
Crankcase Screw Set
5031
5031
32
Engine Gasket Set
120S32B
120S32B
33
Cam Gear Housing
120S33
150S33
35
Cam Gear (Right)
120S35
120S35
36
Cam Gear Shaft
5036A
5036A
37
Teflon/Steel Washer Set
120S37
120S37
38
Tappet (2 pc)
120S38
120S38
39
Push-rod (2 pc)
120S39
120S39
40
Push-rod Cover & Rubber Seal (Pr)
120S40
120S40
41
Rocker Arm (Pr)
120S41
120S41
42
Rocker Arm Screw & Nut (2 sets)
120S42
120S42
43
Rocker Arm Pin (2 Pc)
120S43
120S43
44
Rocker Arm Bracket (Left)
120S44
150S44
45
Rocker Arm Bracket (Right)
120S45
150S45
46
Valve (In & Out) (Pr)
120S46
120S46
47
Valve Spring, Keeper, Retainer (2 Sets)
120S47
120S47
48
Valve Retainer (4 Pc)
120S48
120S48
49
Rocker Arm Cover (Pr)
150S49
120S49
68
Check Valve (In & Out) (Pr)
––
––
69
Intake Manifold, Left
150S69A
150S69A
74
Muffler, Right
120S74D
120S74D
75
Muffler Manifold, Standard
120S75A
120S75A
79
Muffler Gasket (5 pc)
––
––
80
Muffler Nut (2 pc)
120S80
120S80
821 Carburetor-Complete, Left
120S821E
120S821E
822 Carburetor-Complete, Right
––
––
831 Carburetor Body Assembly, Left
120S831B
120S831B
84
Spray Bar Assembly
450R3D84A
450R3D84A
85
High Speed Needle Valve
120S85A
120S85A
86
High Speed Needle Valve Extension
5086
5086
87
Throttle Barrel Assembly
120S87A
120S87A
88
Throttle Lever
5088B
5088B
89
Idle Needle Valve
120S89
120S89
90
Carburetor Screw & Spring Set
120S90A
120S90A
91
Carburetor Gasket Set
120S91B
120S91B
92
Choke Valve Assembly
120S92
120S92
93
Intake Velocity Stack
120S93
120S93
95
Engine Mount
120S95
120S95
96
Tool Set
120S96
120S96
97
Instruction Manual
SAIMAN1L
SAIMAN1L
102 Fuel Pump System
––
––
109 F-1 Fuel Filter
50109
50109
110 Anti-Loosening Nut
170R3110
170R3110
111 Flexible Exhaust Pipe
120S111
120S111
112 Tuned Silencer
––
––
114 Engine Bed
––
––
116 M3 Nut for Spinner
––
––
117 M4 Nut for Spinner
120S117
120S117
118 M5 Nut for Spinner
120S118
120S118
122 Spray-bar with Internal p-2/External p-5 "O"-Ring ––
––
126 Needle Valve Stopper and Nut
120S126
120S126
135 Prop Washer/Nut/Anti-Loosening Nut
170R3135
170R3135
136 Intake Manifold
––
––
137 Prop Washer
––
––
145 Spray-bar with Internal p-2 "O" Ring
120S145
120S145
147 Carburetor Nipple
30S147
30S147
149 Oil Slinger
––
––
P A R T S L I S T
CC
GG
OO
PP
AD
FA-150(H)
FA-150GK
FA-180
FA-180GK
FA-220a
150H01
150S01
18001
180GK01
220a01
150S06
150S06
18006
18006
220a06
120S07
120S07
18007
18007
220a07
300T08
300T08
300T08
300T08
300T08
300T09A
300T09A
18009
18009
220a09
120S10C
120S10C
18010A
18010A
220a10
120S14
120S14
120S14
120S14
220a14
150H15A
150S15A
18015
180GK15
220a15
120S17A
150S17
18017
180GK17
220a17
6519
6519
6519
6519
6519
120S20A
120S20A
120S20A
120S20A
120S20A
––
––
––
––
––
120S22
120S22
120S22
120S22
120S22
150S23A
150S23A
18023A
18023A
220a23
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
120S27A
120S27A
120S27A
120S27A
300T27B
170R328
170R328
170R328
170R328
170R328
120S29
120S29
120S29
120S29
––
120S30
120S30
120S30
120S30
120S30
5031
5031
5031
5031
5031
150S32A
150S32A
18032A
18032A
220a32
120S33
150S33
120S33
150S33
300T33
120S35
120S35
120S35
120S35
120S35
5036A
5036A
5036A
5036A
5036A
120S37
120S37
120S37
120S37
120S37
120S38
120S38
120S38
120S38
120S38
120S39
120S39
120S39
120S39
220a39
120S40
120S40
120S40
120S40
220a40
120S41
120S41
120S41
120S41
120S41
120S42
120S42
300T42
300T42
300T42
120S43
120S43
120S43
120S43
120S43
120S44
150S44
120S44
150S44
120S44
120S45
150S45
120S45
150S45
120S45
120S46
120S46
18046
18046
220a46
120S47
120S47
120S47
120S47
120S47
120S48
120S48
120S48
120S48
120S48
150S49
120S49
150S49
120S49
150S49
––
––
––
––
130T68A
150S69A
150S69A
18069
18069
220a69
120S74D
120S74D
120S74D
120S74D
220a74
120S75A
120S75A
120S75A
120S75A
220a75
––
––
––
––
––
120S80
120S80
120S80
120S80
220a80
150S821C
150S821C
180821B
180821B
180821B
––
––
––
––
––
150S831A
150S831A
180831
180831
180831
450R3D84A
450R3D84A
450R3D84A
450R3D84A
450R3D84A
120S85A
120S85A
120S85A
120S85A
120S85A
5086
5086
5086
5086
5086
150S87A
150S87A
18087A
18087A
18087A
5088B
5088B
5088B
5088B
5088B
120S89
120S89
18089
18089
18089
120S90A
120S90A
120S90A
120S90A
120S90A
150S91A
150S91A
18091
18091
220a91
120S92
120S92
n/a
n/a
n/a
120S93
120S93
18093
18093
18093
120S95
120S95
120S95
120S95
220a95
120S96
120S96
120S96
120S96
120S96
SAIMAN1L
SAIMAN1L
SAIMAN1L
SAIMAN1L
SAIMAN1L
––
––
––
––
––
50109
50109
50109
50109
50109
170R3110
170R3110
170R3110
170R3110
170R3110
120S111
120S111
120S111
120S111
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
––
120S117
120S117
120S117
120S117
120S117
120S118
120S118
120S118
120S118
120S118
––
––
––
––
––
120S126
120S126
120S126
120S126
120S126
170R3135
170R3135
170R3135
170R3135
170R3135
––
––
––
––
––
––
––
––
––
––
120S145
120S145
120S145
120S145
120S145
30S147
30S147
30S147
30S147
30S147
––
––
––
––
220a149
13
AE
FA-220aGK
220aGK01
220a06
220a07
300T08
220a09
220a10
220a14
220aGK15
220aGK17
6519
120S20A
––
120S22
220a23
––
––
––
300T27B
170R328
––
120S30
5031
220a32
220aGK33
120S35
5036A
120S37
120S38
220a39
220a40
120S41
300T42
120S43
150S44
150S45
220a46
120S47
120S48
120S49
130T68A
220a69
220a74
220a75
––
220a80
180821B
––
180831
450R3D84A
120S85A
5086
18087A
5088B
18089
120S90A
220a91
n/a
18093
220a95
120S96
SAIMAN1L
––
50109
170R3110
––
––
––
––
120S117
129S118
––
120S126
170R3135
––
––
120S145
30S147
220a149

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