Internal Engine Modifications


Product Image Item Name- Model Price
New Yamaha Short Block Engine

New Yamaha Short Block Engine

This is a brand new Yamaha short block complete with new crankshaft, connecting rods and pistons. Transfer over your existing cylinder head, oil...
Yam Short Block $3,198.00

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2016 Yamaha Timing Chain Engine Upgrade Kit

2016 Yamaha Timing Chain Engine Upgrade Kit

This kit contains all parts needed to upgrade to the much stronger 2016 timing chain upgrade. Kit contains the following components: Crankshaft...
2016 upgrade kit $1,498.00

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ARP RIVA YAMAHA PRO-SERIES FLYWHEEL BOLT KIT for 1.8L Engines

ARP RIVA YAMAHA PRO-SERIES FLYWHEEL BOLT KIT for 1.8L Engines

The RIVA Flywheel Bolt Upgrade Kit is a high strength bolt kit directly replaces OEM flywheel bolts that are prone to shearing off on modified...
RY10840-FWB $29.95

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RIVA Yamaha Crankcase Repair Thrust Plate

RIVA Yamaha Crankcase Repair Thrust Plate

Some failures on the Yamaha 1.8L engines involve the crankshaft being pushed forward in the engine. This can be caused by a number of reasons. Some...
RY10040-TB-OIB125 $59.95

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Oil Filter for Yamaha 1800cc engines

Oil Filter for Yamaha 1800cc engines

This filter fits the following skis FX1800- SHO GX1800- FZR GX1800A- FZS FY1800- FXHO
69J-13440-03-00 $24.89

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NGK-LFR6A Spark Plug for Yamaha 1800cc Engines

NGK-LFR6A Spark Plug for Yamaha 1800cc Engines

NGK Spark Plug for all Yamaha 1800cc 4 Stroke Engines. (4 total required)
NGK-LFR6A $11.89

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Molnar Technologies Connecting Rod Set for Yamaha 1800cc Engines (Set of 4)

Molnar Technologies Connecting Rod Set for Yamaha 1800cc Engines (Set of 4)

Molnar Technologies 4340 Billet H-Beam Yamaha SHO Connecting Rods. Tom Molnar has been involved with the design and manufacture of high performance...
Molnar rod set $690.00

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Carrillo Rod (Single) Yamaha 1.8L

Carrillo Rod (Single) Yamaha 1.8L

Our lightweight connecting rods improve the reliability and performance of turbocharged and supercharged watercraft engines. Manufactured to our...
YA-FXSHO>-9M5709S-00 $330.00

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Carrillo Rod Set Yamaha 1.8L

Carrillo Rod Set Yamaha 1.8L

Our lightweight connecting rods improve the reliability and performance of turbocharged and supercharged watercraft engines. Manufactured to our...
RY19040-9M5709S $1,120.00

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RIVA Yamaha High Performance Valve Set (stock size)

RIVA Yamaha High Performance Valve Set (stock size)

RIVA High Performance Valves are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves...
RY19040-HPV-0 $649.95

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RIVA Yamaha High Performance Valve Set +1MM (over sized)

RIVA Yamaha High Performance Valve Set +1MM (over sized)

RIVA High Performance Valves are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves...
RY19040-HPV-1:1 $699.95

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RIVA Yamaha Intake Valve, 1.8L +1mm (single)

RIVA Yamaha Intake Valve, 1.8L +1mm (single)

This is a +1mm oversize, single replacement intake valve from the RIVA Performance Valve set. (part# RY19040-HPV-1:1)
RY19040-IVS-1 $33.97

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VALVE LOCK, YAM for use with RIVA/Ferrea single groove valves

VALVE LOCK, YAM for use with RIVA/Ferrea single groove valves

Replacement valve locks for 1 valve
$8.00

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ARP / RIVA Yamaha Pro-Series Crankcase Main Stud Kits

ARP / RIVA Yamaha Pro-Series Crankcase Main Stud Kits

Our ultra high strength crankcase main stud kit is essential equipment when upgrading internal components on your high boost Yamaha engine. Precision...
RY10840-CMSK-1LB $179.95

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ARP / RIVA Cylinder Head Stud Kit Yamaha 1.8L Engines

ARP / RIVA Cylinder Head Stud Kit Yamaha 1.8L Engines

Our ultra high strength cylinder head stud kit is essential equipment when upgrading internal components on your high boost Yamaha engine. Precision...
RY10040-HSK $249.95

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RIVA 1.8L Pro-Series Cylinder Head Gasket Yamaha 86MM

RIVA 1.8L Pro-Series Cylinder Head Gasket Yamaha 86MM

Our Pro-Series Cylinder Head Gaskets were developed to withstand severe heat & pressure generated by high compression and high horsepower...
RY10040-CHG-86 $149.95

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RIVA 1.8L Pro-Series Cylinder Head Gasket Yamaha 87MM

RIVA 1.8L Pro-Series Cylinder Head Gasket Yamaha 87MM

Our RIVA Yamaha 1.8L Pro-Series Cylinder Head Gaskets were developed to withstand severe heat & pressure generated by high-boost and high horsepower...
RY10040-CHG-87 $149.95

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Yamaha 1.8L OEM Cylinder Head Gasket

Yamaha 1.8L OEM Cylinder Head Gasket

Original Head Gasket for all Yamaha 1.8 liter engines. Fits SVHO, SHO & HO models.
6BH-11181-00-00 $154.89

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RIVA Yamaha 1.8L Engine Performance Valve Lifter Buckets

RIVA Yamaha 1.8L Engine Performance Valve Lifter Buckets

RIVA Performance Valve Lifter Buckets are a "must have" item when upgrading your engine's valve train. Designed to withstand the stress of increased...
RY19040-BVL-KIT $459.95

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RIVA Yamaha Valve Train Upgrade Kit, 1.8L

RIVA Yamaha Valve Train Upgrade Kit, 1.8L

Our Valve Train Upgrade Kits increase the reliability of your modified engine by reducing the possibility of valve float at high rpm. Includes...
RY19040-VTU-2 $649.95

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RIVA Valve Retainers Upgrade Kit Yamaha 1.8L

RIVA Valve Retainers Upgrade Kit Yamaha 1.8L

Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 16...
RY19040-SRU $349.95

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RIVA Valve Train Upgrade Tool Kit for Yamaha

RIVA Valve Train Upgrade Tool Kit for Yamaha

Our overhead Valve Compression Tool allows easy removal of valve springs and keepers without removing cylinder head. Includes compression adapter to...
RY19040-VCT $239.95

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CP Piston Kit, Yamaha SHO, 86mm, 8.6:1

CP Piston Kit, Yamaha SHO, 86mm, 8.6:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1077A $205.75

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CP Piston Kit, Yamaha SHO, 86.5mm, 8.6:1

CP Piston Kit, Yamaha SHO, 86.5mm, 8.6:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1082A $205.75

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CP Piston Kit, Yamaha, 87mm, 8.6:1

CP Piston Kit, Yamaha, 87mm, 8.6:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-YA-86-3425 $225.00

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CP Yamaha 9.5:1 86 mm Piston

CP Yamaha 9.5:1 86 mm Piston

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1078A $205.75

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CP Piston Kit, Yamaha SHO, 86.5mm, 9.5:1

CP Piston Kit, Yamaha SHO, 86.5mm, 9.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1083A $205.75

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CP Piston Kit, Yamaha, 86.25mm, 8.6:1

CP Piston Kit, Yamaha, 86.25mm, 8.6:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1087 $205.75

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CP Piston Kit, Yamaha, 86mm, 9.5:1

CP Piston Kit, Yamaha, 86mm, 9.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1078A $205.75

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CP Yamaha 9.5:1 87 mm Piston

CP Yamaha 9.5:1 87 mm Piston

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-YA-95-3425 $205.75

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CP Yamaha SVHO 8.5:1 86 mm Piston

CP Yamaha SVHO 8.5:1 86 mm Piston

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-SVHO-85-3386 $205.75

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CP Yamaha SVHO 8.5:1 86.5 mm Piston

CP Yamaha SVHO 8.5:1 86.5 mm Piston

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-SVHO-85-3406 $205.75

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CP Piston Kit, Yamaha SVHO, 86.5mm, 8.5:1

CP Piston Kit, Yamaha SVHO, 86.5mm, 8.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1092 $205.75

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CP Piston Kit, Yamaha SVHO, 86.5mm, 9.5:1

CP Piston Kit, Yamaha SVHO, 86.5mm, 9.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-SVHO-95-3406 $205.75

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CP Piston Kit, Yamaha SVHO, 86mm, 8.5:1

CP Piston Kit, Yamaha SVHO, 86mm, 8.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
M1091 $205.75

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CP Piston Kit, Yamaha SVHO, 87mm, 8.5:1

CP Piston Kit, Yamaha SVHO, 87mm, 8.5:1

CP forged racing pistons deliver maximum reliability and performance in high boost supercharged & turbo applications. High strength piston kits...
CARR-SVHO-85-3425 $205.75

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CP Piston Ring Set for 90mm Piston

CP Piston Ring Set for 90mm Piston

(one)
CPN-3543 $35.00

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CP Piston Ring Set, Yamaha, 86.5mm (for one piston)

CP Piston Ring Set, Yamaha, 86.5mm (for one piston)

Purchased in bulk from the finest manufacturers in the world and packaged in combinations for your application. These sets deliver reliable and...
CPN-3406 $35.00

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CP Piston Ring Set, Yamaha, 86mm (for one piston)

CP Piston Ring Set, Yamaha, 86mm (for one piston)

Purchased in bulk from the finest manufacturers in the world and packaged in combinations for your application. These sets deliver reliable and...
CPN-3386 $35.00

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CP Piston Ring Set, Yamaha, 87mm (for one piston)

CP Piston Ring Set, Yamaha, 87mm (for one piston)

Purchased in bulk from the finest manufacturers in the world and packaged in combinations for your application. These sets deliver reliable and...
CPN-3425 $35.00

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WORX Yamaha Billet Engine Coupler

WORX Yamaha Billet Engine Coupler

Billet Drive coupler for Yamaha 1.8 Engine Fits any 1.8 Yamaha Engine Billet construction huge strength upgrade over stock cast unit Utilises OEM...
WR04003 $382.00

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RIVA/Darton Yamaha 1.8L Pro-Series Cylinder Sleeves

RIVA/Darton Yamaha 1.8L Pro-Series Cylinder Sleeves

Our new bulletproof sleeve system is the ultimate foundation for your high performance engine. Engineered specifically for the Yamaha SHO engine by...
RY10040-SLV-470 $549.95

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Riva CP Yamaha 1.9L Big Bore Engine Kit 9.5:1 compression

Riva CP Yamaha 1.9L Big Bore Engine Kit 9.5:1 compression

FZR 1.9 Liter 9.5-1 Big Bore Engine Kits 1.9 Liter Big Bore Kit for the Yamaha FZR and SHO Supercharged engines that comes complete with all the...
992-18088 $1,599.95

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RIVA Yamaha 1.8L Engine Pro-Series Sleeves

RIVA Yamaha 1.8L Engine Pro-Series Sleeves

Our high-quality ductile iron replacement sleeves are considerably harder and more abrasion resistant than OEM sleeves providing excellent oil...
RY10040-SLV-615 $79.95

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Riva CP 8.6-1 piston 0.5mm oversize pistons for 1.9 big bore kit

Riva CP 8.6-1 piston 0.5mm oversize pistons for 1.9 big bore kit

Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain...
432-19885 $950.00

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Riva CP Yamaha FZR/SHO Big Bore 88mm 9.5-1 Forged Piston Kit

Riva CP Yamaha FZR/SHO Big Bore 88mm 9.5-1 Forged Piston Kit

Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain...
CP Big Bore 88mm 9.5:1 CR $864.95

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Riva CP High Performance Racing Cylinder 88mm Big Bore Replacement Sleeve

Riva CP High Performance Racing Cylinder 88mm Big Bore Replacement Sleeve

High Performance Racing Sleeves are made to precise specifications specific for the Yamaha SVHO-FX Supercharged engine. Racing Sleeves install easily...
432-18088 $117.00

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RIVA Yamaha SHO/HO Racing Cam Set

RIVA Yamaha SHO/HO Racing Cam Set

Delivers 20 peak HP and better acceleration. Grind specifications developed on our in-house Dyno and made exclusively for RIVA Racing by Web Cam....
RY19040-BCS-141 $1,509.00

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Hot Cams Valve Shim Kit

Hot Cams Valve Shim Kit

Complete shim kits include three 9.48mm shims in each size ranging from 1.20 to 3.50 (increments of 0.05). Made from 4140 cold rolled steel. The...
0925-0011 $99.95

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RIVA Yamaha 1.8L Engine Performance Valve Seals

RIVA Yamaha 1.8L Engine Performance Valve Seals

Our high quality viton seals are extremely resistant to heat and abrasion. Metal body holds it's shape under extreme conditions. Spring loaded wipers...
RY19040-PVS-1 $59.95

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Complete Yamaha Engine Tool Set

Complete Yamaha Engine Tool Set

1 x YW-06730 Crankshaft Holder $99.60 1 x YW-06723 Flywheel Puller $117.30 1 x YW-01080 Center bolt for Flywheel Puller $13.26 1 x YW-06721...
$1,854.73

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CP Replacement Ring Kit (set for 1 piston)

CP Replacement Ring Kit (set for 1 piston)

This is a replacement ring kit for a CP piston. This kit is for one single piston. Please leave a note in the comments section when you place the...
CP replacement ring set (1 pisto $35.00

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YW-06721 Crankshaft Holder

YW-06721 Crankshaft Holder

YW-06721
$338.74

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WORX Oil Cooler Relocate Plate

WORX Oil Cooler Relocate Plate

This billet plate mounds on all Yamaha 1.8 engine blocks where the oil cooler mounts and allow you to install fittings to run to a external oil...
Yam Oil Cooler Re Mount $220.00

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CP FZR/SHO High Performance 10.5-1 Forged Piston Kit

CP FZR/SHO High Performance 10.5-1 Forged Piston Kit

R&D Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to...
432-19105 $864.95

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Riva CP FZR/SHO Big Bore 88mm 8.6-1 Forged (Single Piston)

Riva CP FZR/SHO Big Bore 88mm 8.6-1 Forged (Single Piston)

Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to gain...
CP Big Bore 88mm $228.00

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Riva CP FZR/SHO Big Bore 88mm 8.6-1 Forged Piston Kit

Riva CP FZR/SHO Big Bore 88mm 8.6-1 Forged Piston Kit

R&D Yamaha SHO/FZR Forged Racing Piston Kits have been developed for the hard core race enthusiasts or precision engine builders who are looking to...
CP Big Bore 88mm $864.95

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Yamaha Cam Shaft Holder for 1.8L

Yamaha Cam Shaft Holder for 1.8L

This tool is used for rotating the camshaft by the cam sprocket to check valve clearances on Yamaha 1.8L
YM-04115 $100.90

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