FUEL
SYSTEMS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE/
BILGE
BODY
SERVICE TOOLS
/
HARDWARE
CHEMICAL
HANDLEBARS
&
CONTROLS
ACCESSORIES
ENGINE/
GASKETS
31
RIVA Yamaha Head O-Ring Kit
2
Cylinder (701/760)
3
Cylinder (63M/65U)
GP800 (66E)
GP1200R (For RY100288B/100289A1)
GP1200R (for RY100320)
Part No.
RY10026-O
RY10028-O
RY100277-O
RY100288-O
RY100320-O
N/R: Not Recommended
Note: This guide is for motors with no internal engine modifications at sea level elevation. it only applies to Riva Cylinder Heads & Domes.
PRO-SERIES II HEAD DOME CHART
ENGINE
TYPE
31
cc for
80
mm
33
cc for
80
mm
35
cc for
80
mm
37
cc for
80
mm
41
cc for
80
mm
29
cc for
81
mm
31
cc for
81
mm
35
cc for
81
mm
38
cc for
81
mm
32
cc for
84
mm
701
cc
N/R N/R N/R N/R N/R 225 psi
205
psi
180
psi
155
psi
N/R
760
cc
N/R N/R N/R N/R N/R N/R
N/R N/R N/R 220 psi
GP800/GPR 200 psi
190
psi
180
psi
170
psi
150
psi
N/R N/R N/R N/R N/R
Part No. RY100277-D-31
RY100277-D-35 RY100277-D-37 RY100277-D-41 RY10026-D-29 RY10026-D-31 RY10026-D-35 RY10026-D-38 RY10027-D-32
34
cc for
84
mm
35
cc for
84
mm
38
cc for
84
mm
41
cc for
84
mm
N/R
N/R N/R N/R
205
psi
200
psi
185
psi
155
psi
N/R
N/R N/R N/R
RY10027-D-34 RY10027-D-35 RY10027-D-38 RY10027-D-41
RY100277-D-33
Descriptions
Girdle Head Cap Y701/760 2 Cyl. 0 mount
Girdle Head Cap Y701/760 2 Cyl. 3 mounts
Girdle Head Cap 800 4 mounts
Part No.
RY10027-A
RY10027-A3
RY100278-A4
Part No.
RY10026-D-XX(CC)
RY100277-D-XX(CC)
Part No.
RY10027-B
RY100277-B
Descriptions
Y701/760 2 Cylinder Girdle
800 (66
E, Power Valve)
RIVA YAMAHA BILLET GIRDLE HEAD KIT
Pro-series Billet Head Bodies
(
Includes Hardware and O-Ring)
Pro-Series Billet Head Caps
(
Available with or without integrated exhaust mounts)
Pro-Series Billet Head Domes
(
Sold Individually)
Descriptions
701 81
mm Bore
800/1200 (
PV)
See Head Dome Chart for part # of other domes
Kawasaki
750 24
cc
750 26
cc
750
Girdle Hardware Kit
O-Ring Set
Part No.
50-5200-24
50-5200-26
50-5201
50-5200-
O
COLD FUSION BILLET HEAD/GIRDLE KIT
Part No.
RY100320
Descriptions
Pro-Series Head Kit, 1200 (66V)
RIVA GPR/XLT1200 PRO-SERIES
CYLINDER HEAD KIT
Unique water jacket design channels coolant across finned surfaces
on top of combustion chambers, greatly reducing cylinder head
temperature and risk of detonation. Reusable o-ring seals eliminate
head gasket failure and allow for convenient head removal and
reinstallation. Domes sold separately. (See Dome Chart below)