Yamaha Y-30C User manual

.YAMAHA MOTOR CO .• LTD.
Copynght
All rights reserved
No part of this publication may
reproduced without permission
Y-30C
Pnnted mJapan
Jufv 1979
GJ0-28199-00

Y-30C 1
TABLE OF CONTENTS
1. GENERAL DESCRIPTION .................................................................................. 4
1-1 PRINCIPAL DIMENSIONS AND FIGURES................................................................................ 4
1-2
SAIL PLAN................................................................................................................................... 5
1-3 RIGGiNG LIST ............................................................................................................................. 7
1-4 DECK PLAN................................................................................................................................. 9
1-5 ACCOMMODATIONS .................................................................................................................. 11
1-6 THROUGH-HULL FITTINGS .......................................................................................................12
1-7 MAST FITTINGS.......................................................................................................................... 13
1-8 BOOM FITTINGS......................................................................................................................... 14
1-9 LIST OF STANDARD ITEMS TO BE ON BOARD ...................................................................15
2. SPARS AND RJGGING....................................................................................... 16
2-1 STEPPING MAST ........................................................................................................................16
2
.. 2 STANDING RIGGING ADJUSTMENT ........................................................................................17
2-3 HALYARD LEAD..........................................................................................................................20
2-4 MAIN SHEET LEAD....................................................................................................................20
2-5 MAIN SHEET TRAVELLER ADJUST .........................................................................................20
2-6 JIB SHEET LEAD ........................................................................................................................ 21
2-7 CUNNINGHAM............................................................................................................................. 21
2-6 BOOM VANG........... ., .................................................................................................................. 21
2-9 MANUAL BACKSTAY TENSIONER...........................................................................................22
2-10 REEF LINE AND REEFING....................................................................................................... 22
3. ELECTRIC SYSTEM ........................................................................................... 24
3-1 BATTERY .................................................................................................................................... 24
3-2 BATTERY SWITCH..................................................................................................................... 24
3-3 ELECTRICAL SWITCH PANEL ................................................................................................. 25
3-4 BILGE BLOWER......................................................................................................................... 25
3-5 ELECTRICAL SYSTEM DIAGRAM ............................................................................................ 25
4. ENGINE................................................................................................................ 28
4-1 BEFORE STARTING ENGINE ................................................................................................... 28
4-1-1 FUEL SUPPLY ......................................................................................................................... 28
4-1-2 FUEL SYSTEM DIAGRAM OF STANDARD MODEL .......................................................... 29

Y-30C 2
4-1-3 OTHER CHECK POINTS.........................................................................................................30
4-2 STARTING ENGINE..................................................................................................................... 31
4-2-1 ELECTRfC STARTING ............................................................................................................. 31
4-2-2 HAND STARTING .................................................................................................................... 31
4-3 WARM UP ....................................................................................................................................32
4-4 POINTS TO CHECK DURING OPEAATlON ............................................................................. 32
4-5 SECURING ENGINE....................................................................................................................32
PRACTICAL NOTE..................................................................................................................... 33
4-6 SHAFTING....................................................................................................................................35
5. PLUMBING SYSTEM.......................................................................................... 39
5-1 PLUMBING SYSTEM DIAGRAM........ ~ ...................................................................................... 39
5-2 FRESH WATER TANK ............................................................................................................... 40
5-3 GALLEY........................................................................ ~ .............................................................. 40
5.4 HEAD ...........................................................................................................................................40
5-5 MANUAL BILGE PUMP............................................................................................................. 42
5-6 COCKPIT DRAIN ........................................................................................................................ 42
5-7 ANCHOR WELL.......................................................................................................................... 42
5·8 ELECTRIC BILGE PUMP (optional) ......................................................................................... 42
5-9 SECOND WATER TANK (optional) .......................................................................................... 43
5-10 PRESSURE WATER SYSTEM (optional) ............................................................................... 44
5-11 HOT WATER SYSTEM (optional)...........................................................................................45
6. MAINTENANCE TIPS .........................................................................................46
6·1 FfBERGLASS SURFACES ......................................................................................................... 46
6-2 STANDING RIGGING AND HALYARDS................................................................................... 47
6-3 SPARS......................................................................................................................................... 47
6-4 SAILS........................................................................................................................................... 47
6-5 TEAK ........................................................................................................................................... 47
6-6 HARDWARE ................................................................................................................................ 47
6-7 BATTERY .................................................................................................................................... 47
6-8 ZINC-RING .................................................................................................................................. 48
6~9 CRADLE ...................................................................................................................................... 49

Y-30C 3
7. MISCELLANEOUS...............................................................................................50
7-1 PEDESTAL STEERING SYSTEM (optional)............................................................................. 50
7-2 STEERING SYSTEM OF U.S. MODEL..................................................................................... 51
7-3 DOUBLE HALYARD SYSTEMS (optional) ............................................................................... 53

1. GENERAL DESCRIPTION:
1·1. PRINCIPAL DIMENSIONS AND FIGURES:
DESIGNER
BUILDER
RIG
L..O.A.
L.W.L.
BEAM
DRAFT, STANDARD
SHOAL (option)
TOTAL HEIGHT
(Above the waterline)
MAST LENGTH
HEAD ROOM
DISPLACEMENT
BAlLAST
TOTAL SAll AREA
(100% fore 6 + main sail)
BERTHS
WATER CAPACITY
ENGINE
1-HA, RATING OUTPUT
CONTINUOUS RATING
OUTPUT
REDUCTION RATIO
PROPELLER ROTATION
CRANKSHAFT ROTATION
FUEL CAPACITY
SPEED, MAX
SPEED, CRUISING
CRUISING RANGE
YAMAHA DESIGN TEAM
YAMAHA MOTOR CO., l TO.
MAST HEAD SLOOP
8.97m
29ft
Sin
7.20m
23ft
7 ftln
3.23m
10ft
7in
1.75m
5ft
91n
1.40m
4ft 71n
12.47 m
40ft 11 In
10.87m
35ft Sin
1.93m
6ft
4tn
3,450 kg 7,6061bs
1,300 kg
2,8661bs
36.27 sq m
390.4 sqn
MAIN CABtN
3
FO'CSLE
2
QUARTER BERTH 2
155 liter 41 US gals
YANMAR YSM-12 4CVCLE 1 CYUNOER DIESEL
'12 HP !3.000rpm
10 HP/3,000rpm
2:1
COUNTER-CLOCKWISE (viewed from astern)
COUNTER-CLOCKWISE (viewed from astern)
58 titer
abt 6.6 knots
abt. 5 knots
abt. 275 natutical miles/5 kt
15 US gals
• SPECIFICATION SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
Y-30C 4
J£1V4 '"'t
~ (l/11 Jt. f ,.J~ '

I
I
I
i
I
Y-30C 5
1-2. SAIL PLAN:
1-2 .. 1. SAILS:
MAiN
#1 GENOA
#2GENOA
#1 JIB
#2Jf8
-;.Jl'
} ) .
STORM JIB ~,. _., ....
,.. .
SPINNAKER
lOO%Fore~:.
NOTE: l}
AREA
sqm
(sq ft)
15.00
(161.46)
32.47
(349.51)
28.94
{311.51)
23.36
(251.45)
15.84
(170.50)
6.53
( 70.29)
21.27
(228.95)
LUFF FOOT
lEECH
LPG
m m m m
(ft)
(ft) (ft) (ft)
10.00 3.00 10.40
(32.81) ( 9.84) (34.12)
11.70 5.96 11.00 5.55
(38.39) (19.55) 36.09) (18.21)
11.35 5.58 10.40 5.10
(37.24) (18.31) {34.12) (16.73)
10.50 4.94 9.45 4.45
(34.45) (16.21) (31.00} (14.60)
8.80 4.13 7.65 3.60
(28.87)
(13.55) (25.10) (11.81)
6.70
3.10
4.70
1.95
(21.98) (10.17)
(15.42)
( 6.40)
11.47 6.66 11.47
(37.63} (21.85) (37.63)
Material: DACRON/TEA
2)
SPINNAKER FOOT· S YLENE except NYLON spinnaker
3)
STA . MWMAX (IO
WEIGHT
oz
8 STANDARD
6
OPT tON
8 OPTlON
8 STANDARD
10
OPTION
10
OPTION
1.2
OPTION
4)
NDAAO SAILS MAY VA .. . R. measurement)
WEIGHT: oz;sqYrd RY ACCORDING TO REGION.
1 .. 2·2 DAfT
· £Ns:
TOp
MIDDLE (2)
o.soom
0.660m
19 In 11116
BOTTOM
0.60om
26;n
23Jn 5/B

0
~
-
..,..
Q
Fig. 1 SAIL PLAN
SMW 6.66
(MAX)
J3.70
Y-30C 6

Y~30C 7
1-3. RIGGING LIST:
1·3 .. 1. STANDING RIGING:
LENGTH DIA. TYPE
m
mm
HEAD STAY 1 11.558 6 1 X 19
BACKSTAY 9.963 6 1 X
19
BACKSTAY (SPLIT PART) 2 1.810 5 1X 19
MJOSTAY (INNER FORESTAY) 5.745 5 1 X 19
UPPER SHROUDS 2 10.810 6 1 X
19
LOWER SHROUDS 2 5.689 5 1 X 19
NOTE: LENGTH
~(C- lt=lt ===:=t
c:

1-3·2. RUNNING RIGGING:
LENGTH DIA. COLOR
TYPE
m
mm
MAIN SHEET 1 16 12
REO 1/4 Braided Poly-
JIB SHEET 2
14 12
propytene
YELLOW 1/4
SPIN. SHEET 2 18 12 GREEN
1/4
SPIN_ FORE GUY 1 11.5 10
GREEN
1/8
MAIN HALYARD (TAIL) 1 16 10
REO 1/4
JIB HALYARD (TAIL) 1 16
12
YELLOW
1/4
SPIN. HALYARD
29.5 I
1/8
1 12 'GREEN
BOOM LIFT (TAIL) 1 13.5 6 RED
1/8
SPIN. POLE LIFT 1
20
8 GREEN
1/8
CUNNINGHAM #1
1 1.5 6
RED 1/B
CUNNINGHAM #2
1 2.0
8 RED 1/8
MAIN SHEET TRAVELLER ADJUST
1 5 8 REO
1/8
BOOM VANG LINE 1 8
10 RED 1/4
REEF POINTS 8 1.2 6
WHITE
REEF LINE #1
1 7.5 B WHITE
REEF LINE #2 1 i 1.0 8
WHITE
SPIN. POLE ADJUST 1 6.5 8 GREEN
1/8
MAIN HALYARD
1 10.60 4
s.s.
7x19
JIB HALYARD
1 11.30 5
s.s.
7x 19
BOOM LIFT 1 11.08 2.5
s.s.
1 X 19
LANYARD (for SETEE BERTH) 2 7 8
BROWN
LANYARD (forCANVAS LEE BOARD
4 0.6
6 BROWN
of PILOT BERTH)
NOTE: "RED 1/4" rope has 1/4 of strands colored red.
• SPECIFICATION SUBJECT TO CHANGE WITHOUT PRIOR NOTICE

Y-30C 9
1-4. DECK PLAN:
@
@
@ @
®
<D
®
®
@
®
® @
<1>
@
®
@
@
®
@
@ Ill
@ @
@@
@
@
®
® ®
®
®
(i)
@ ®
@ ®
Fig. 2 DECK PLAN (1)