Yamaha YXZ

AR8695 - Yamaha YXZ/Sidewinder / Textron XX (16-up) ARP2000 Head Stud Kit

Made from ARP2000 material and rated to 220,000 psi, ARP cylinder head studs not only offer super...

Made from ARP2000 material and rated to 220,000 psi, ARP cylinder head studs not only offer superior clamp loads over cylinder head bolts, they provide proper alignment of the head and gasket with more accurate and consistent torque loading. Bolts will actually twist while torquing to proper spec, greatly reducing their ability to hold true.

BC0950 - Yamaha 998 Dual Spring/Steel Retainer/Seat Kit

Kit is intended for OEM shim in retainer setup. Designed for high rpm, BC valve springs by PAC Ra...

Kit is intended for OEM shim in retainer setup. Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium 6AL4V titanium alloy for added valve control above 10,000 rpm. Type BC1950 Dual Free Length 1.572" Outer/1.339" Inner Seat 1.265" @ 76 lbs Open 0.850" @ 192 lbs Coil Bind 0.715" Retainer BC2905H ...

BC0954 - YAMAHA YXZ/SIDEWINDER (16-up) STOCK STROKE KIT w/BC PRO625+ RODS, SHELF PISTONS w...

Includes 4340 billet crank, 66.2mm stroke, BC Pro625+ rods (4.665" c-to-c), and shelf or custom p...

Includes 4340 billet crank, 66.2mm stroke, BC Pro625+ rods (4.665" c-to-c), and shelf or custom pistons (choice of bore/compression). REQUIRES SIDEWINDER OIL PUMP/SPROCKET

BC0956 - - YAMAHA YXZ/SIDEWINDER (16-up) STOCK STROKE KIT w/CARRILLO RODS, SHELF PISTONS ...

Includes 4340 billet crank, 66.2mm stroke, Carrillo rods (4.665" c-to-c), and shelf or custom pis...

Includes 4340 billet crank, 66.2mm stroke, Carrillo rods (4.665" c-to-c), and shelf or custom pistons (choice of bore/compression). REQUIRES SIDEWINDER OIL PUMP/SPROCKET (BC8805).

BC0958 - YAMAHA YXZ/SIDEWINDER (16-up) STROKER KIT w/BC PRO625+ RODS, CUSTOM PISTONS w/ALL...

Includes 4340 billet crank, 71mm stroke, Pro625+ rods (4.665" c-to-c), and custom pistons (choice...

Includes 4340 billet crank, 71mm stroke, Pro625+ rods (4.665" c-to-c), and custom pistons (choice of bore/compression). REQUIRES SIDEWINDER OIL PUMP/SPROCKET (BC8805) AND MINOR CASE WORK FOR CLEARANCING.

BC3850 - Yamaha YXZ / Textron XX Stainless Steel Intake Valves - 31mm (STD)

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

BC3853-N - Yamaha YXZ / Textron XX Inconel Exhaust Valves - 27mm (+1mm)

BC valves are one piece design with a friction welded Stellite tip for the best possible performa...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, extreme heat resistant Nimonic 90 alloy or Inconel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a ...

BC5951 - Unbalanced YAMAHA YXZ/SIDEWINDER (16-up) BILLET CRANKSHAFT (71mm STROKE)

WARNING - These crankshafts do not come balanced, ready to install. Balancing is required for ope...

WARNING - These crankshafts do not come balanced, ready to install. Balancing is required for operation. Add $200 per crank for TPR precision balance, bobweights required if using own piston and/or rod combo. 4340 billet crankshaft in +4.8mm stroke (71mm). MUST USE WITH SIDEWINDER OIL PUMP/SPROCKET. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage ...

BC6952 - Yamaha YXZ / Textron XX (16-up) Pro625+ Connecting Rods w/ARP625+ Fasteners

Yamaha YXZ / Textron XX - Pro625+ Custom Age 625+ Fasteners. Made from aerospace grade, 4340 chro...

Yamaha YXZ / Textron XX - Pro625+ Custom Age 625+ Fasteners. Made from aerospace grade, 4340 chromoly steel, BC high performance connecting rods deliver the reliability required for high rpm applications. Every rod is CNC machined, micropolished surface finish treatment, equipped with Aluminum/Silicone/Bronze pin bushings and finish honed to exacting tolerances. C-to-C 4.665" BE Bore 1.6142" BE Width 0.887" PE Bore 0.748" PE Width 0.800" Gram Wt 428 Torque Specs 30 ft lbs - 5/1...

BC7951 - Yamaha YXZ / Textron XX (16-up) CP Custom Pistons w/All Hardware - Specify Bore x...

Order your custom CP, JE or BME pistons from Brian Crower in any bore and compression ratio as we...

Order your custom CP, JE or BME pistons from Brian Crower in any bore and compression ratio as well as add features like skirt and top coatings, upgraded 9310 alloy wrist pins, gas ports, etc...50% deposit required, allow 4-6 weeks for delivery.

BC8298 - Yamaha YXZ/998 (80mm x .028”) Cometic Head Gasket

80mm cyl bore, .028” Thickness - Cometic three layer gaskets combine advanced materials with stat...

80mm cyl bore, .028” Thickness - Cometic three layer gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLS head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around oil and water passages.

BC8805 - Yamaha Sidewinder Oil Pump Drive Sprocket

Genuine Yamaha Sidewinder oil pump drive sprocket (#8KJ-1355-00) required for use on all BC Yamah...

Genuine Yamaha Sidewinder oil pump drive sprocket (#8KJ-1355-00) required for use on all BC Yamaha billet crankshafts. BC uses the Sidewinder 23 tooth timing gear design.

BC9050-2 - ARP Yamaha YXZ (16-up) Roll Cage Fastener Kit - 2 Seat

BC x ARP exclusive roll cage bolt kit for the Yamaha YXZ 2 seater. Features 12pt, polished stainl...

BC x ARP exclusive roll cage bolt kit for the Yamaha YXZ 2 seater. Features 12pt, polished stainless steel bolts rated to 180,000psi, far superior to the Grade 8 stock bolts and a way better look. Fits all Yamaha YXZ's

BC9054 - ARP Yamaha YXZ Wheel Stud Kit (set/4)

Buff out your YXZ with these ARP Pro Series wheel studs designed with added shoulder length for ...

Buff out your YXZ with these ARP Pro Series wheel studs designed with added shoulder length for proper wheel engagement and a pronounced bull nose tip for easy starting of lug nuts. Made from heat-treated 8740 chromoly with cadmium plating for extra durability and a tensile strength of 200,000 psi. For comparison, a traditional Grade 8 bolt has a tensile strength of 150,000 psi. Fits all Yamaha YXZ and Textron/Wildcat XX’s. Sold in sets of 4 for one wheel hub.

BME1095 - Yamaha YXZ / Textron XX (16-up) BME Shelf Pistons w/All Hardware - 80mm x 9.5:1

While BME's flagship piston products are NASCAR and road racing pistons, Bill Miller Engineering'...

While BME's flagship piston products are NASCAR and road racing pistons, Bill Miller Engineering's cutting-edge technology and premium quality wins races in another motorsport which is a grueling test of pistons: blown-fuel drag racing. In fact, drag racing was the first market for the BME Forged Aluminum Racing Piston. Ever since legendary, dragster and funny car crew chief, the late Dale Armstrong, switched to BME in the 1980s, blown-fuel racers have used BME Pistons in their engines. Since...

CA6951 - Yamaha YXZ / Textron XX (16-up) Carrillo H-Beam Connecting Rods - Normally Aspirated

Polaris XP Turbo - Carrillo Connecting rods were founded by Fred Carrillo in 1963. Fred approach...

Polaris XP Turbo - Carrillo Connecting rods were founded by Fred Carrillo in 1963. Fred approached the challenges of manufacturing with the idea of no compromise. He knew the never ending quest for speed would require the same desire in component manufacturing. This Carrillo philosophy is as evident today as it was at Carrillo’s conception in 1963. Quality and pride go hand-in-hand at CP-Carrillo. Manufacturing a CP-Carrillo rod is much more than cutting a forging, meeting production goals a...

CP1095 - Yamaha YXZ / Textron XX (16-up) CP Shelf Pistons w/All Hardware - 80mm x 9.5:1

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. ...

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis a...

CP1097 - Yamaha YXZ / Textron XX (16-up) CP Shelf Pistons w/All Hardware - 80mm x 11.5:1

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. ...

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis a...

JE345192 - Yamaha YXZ / Textron XX (16-up) JE Shelf Pistons w/All Hardware - 80mm x 9.5:1

The top engine builders in NASCAR, ALMS, NHRA, AMA SupercBME and others choose JE Pistons over an...

The top engine builders in NASCAR, ALMS, NHRA, AMA SupercBME and others choose JE Pistons over any other brand. For over 70 years, JE's position at the forefront of performance piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilizing State-Of-The-Art CNC machines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances ...

JE345194 - Yamaha YXZ / Textron XX (16-up) JE Shelf Pistons w/All Hardware - 80mm x 12.5:1

The top engine builders in NASCAR, ALMS, NHRA, AMA SupercBME and others choose JE Pistons over an...

The top engine builders in NASCAR, ALMS, NHRA, AMA SupercBME and others choose JE Pistons over any other brand. For over 70 years, JE's position at the forefront of performance piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilizing State-Of-The-Art CNC machines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances ...