11 best powersports valve parts

Powersports valve parts are critical components of the engine in motorcycles and other powersports vehicles. These components play a vital role in controlling the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases. Here is some information about powersports valve parts:

  1. Types of Valves: Powersports engines typically use two types of valves: intake valves and exhaust valves. Intake valves allow the mixture of air and fuel to enter the combustion chamber, while exhaust valves facilitate the expulsion of exhaust gases after combustion.

  2. Materials: Valve parts are commonly made from high-strength materials like stainless steel, titanium, or other alloys. These materials are chosen for their durability and resistance to the high temperatures and pressures within the engine.

  3. Valve Timing: Valve timing refers to the precise opening and closing of intake and exhaust valves in coordination with the engine's piston movement. Proper valve timing is crucial for engine efficiency and performance.

  4. Valve Clearance: Maintaining the correct valve clearance, the gap between the valve and the valve seat, is essential for optimal engine operation. Too little clearance can cause valve damage, while too much can lead to poor performance.

  5. Valve Springs: Valve springs are responsible for closing the valves after they open during the engine's operation. They ensure that the valves seat properly and prevent them from floating or bouncing at high RPMs.

  6. Valve Guides: Valve guides provide support and guidance for the valves, allowing them to move smoothly within the cylinder head. They are typically made from materials like bronze or cast iron to reduce friction and wear.

  7. Valve Seals: Valve seals prevent oil from entering the combustion chamber through the valve guides. They help maintain proper lubrication while preventing excessive oil consumption and emissions.

  8. Performance Valves: In high-performance applications, riders may opt for aftermarket performance valves. These valves are designed to provide improved flow characteristics, which can enhance engine power and efficiency.

  9. Valve Maintenance: Regular maintenance is essential to ensure the longevity and performance of valve parts. This may include checking and adjusting valve clearances, inspecting for signs of wear, and replacing valves and related components as needed.

  10. Valve Issues: Common issues related to valve parts include valve seat wear, valve burning, and valve stem wear.These issues can lead to poor engine performance, loss of compression, and increased emissions.

  11. Valve Timing Adjustment: Adjusting valve timing is a precise task that should be done by experienced mechanics. It ensures that the intake and exhaust valves open and close at the correct moments in the engine's cycle.

In summary, powersports valve parts are critical engine components responsible for controlling the intake and exhaust processes in powersports vehicles. Proper maintenance and attention to valve-related issues are essential for maintaining engine performance, reliability, and longevity in the world of powersports.

Below you can find our editor's choice of the best powersports valve parts on the market
  

Prox Racing Parts 28.SIS1403-2 Steel Intake Valve Set

Prox Racing Parts

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Product description

ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. ProX steel valves are made by the leading OEM factories in Japan and are a direct and cost-efficient OEM replacement. ProX steel valves can be used in combination with all the OEM valve train components like valve springs, guides, bases and retainers.

  • Package Dimensions: 5 L x 2 H x 2 W (inches)
  • Package Weight : 0.2 pounds
  • Country of Origin : Japan
  • Part number: 28.SIS1403-2

User questions & answers

Question: Does this valve set include springs? The picture shows springs included
Answer: Yes mine came with springs. They are good valves and I've had no problems with them, but next time I'm going to go with titanium valves!

Prox Racing Parts 29.948185 9.48mm x 1.85mm Valve Shim, (Pack of 5)

Prox Racing Parts

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Product description

ProX Valve Shims are made of premium materials. Specified heat-treatment processes ensures the hardness of the shims to offer maximum durability and less wear. ProX shims are precision machined to the exact OEM size specifications. Shim refill packs are available for each individual size and contain 5 shims per pack.

  • Each shim is stamped with thickness size
  • Heat treated for hardness and maximum durability
  • Japanese vehicle shims
  • Packaged 5 shims per part number

Top Notch Parts Replacement Cylinder Head Rebuild Valve Seal Spring Kit Valve Assembly For 2001-2005 Yamaha Raptor 660 R YFM 660 R FREE FEDEX 2 DAY SHIPPING

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Product description

2001-2005 Yamaha Raptor 660 Cylinder Head Rebuild Kit Valve Assembly YFM 660 THIS BRAND NEW AFTERMARKET REUILD KIT HAS BEEN INSPECTED FOR THE HIGHEST QUALITY & THE HIGHEST GRADE MATERIALS HAVE BEEN USED IN THE MUFACTURE OF THIS ASSEMBLY. NO OTHER KIT CAN COMPETE AGAINST THE RELIABILITY & QUALITY OF OUR KIT. DIRECT BOLT ON !!! PURCHASE INCLUDES: 1X BASE GASKET 1X CYLINDER HEAD GASKET 1X CYLINDER O-RING 3X INTAKE VALVE 2X EXHAUST VALVES 1X SET OF VALVE SPRINGS 1X SET OF RETAINERS 1X SET OF VALVE STEM SEALS 1X SET OF VALVE COTTERS Replaces OEM Part # 5KM-12111-00-00 3YF-12121-00-00 5LP-12113-00-00 5LP-12114-00-00 3YF-12116-00-00 5H0-12119-00-00 3YF-12117-01-00 4G0-12118-00-00 3YF-11181-00-00 93211-01467-00 3YF-11351-00-00

  • Replaces OEM Part # 5KM-12111-00-00 3YF-12121-00-00 5LP-12113-00-00 5LP-12114-00-00 3YF-12116-00-00 5H0-12119-00-00 3YF-12117-01-00 4G0-12118-00-00 3YF-11181-00-00 93211-01467-00 3YF-11351-00-00
  • 2001-2005 Yamaha Raptor 660 Cylinder Head Rebuild Kit Valve Assembly YFM 660
  • BRAND NEW AFTERMARKET REUILD KIT HAS BEEN INSPECTED FOR THE HIGHEST QUALITY & THE HIGHEST GRADE MATERIALS HAVE BEEN USED IN THE MUFACTURE OF THIS ASSEMBLY.
  • INCLUDES: 1X BASE GASKET 1X CYLINDER HEAD GASKET 1X CYLINDER O-RING 3X INTAKE VALVE 2X EXHAUST VALVES 1X SET OF VALVE SPRINGS 1X SET OF RETAINERS 1X SET OF VALVE STEM SEALS 1X SET OF VALVE COTTERS

Prox Racing Parts 28.1402-2 Titanium Replacement Intake Valve

Prox Racing Parts

Based on 1 reviews Check latest price

Product description

ProX titanium valves are forged in one piece for extra strength and greater durability than OEM titanium valves. Uses a special Ti3Al alloy for better performance under high temperatures. CrN coating for extra hardness and less friction between valves and guides. Fits: Honda CRF 450 R 2002-2006, CRF 450 R 2007-2008. Specs: Location: Intake; Material: Titanium; Number of Valves Included: 1; Head Dia: 36.00mm; Length: 84.60mm; Stem Dia: 5.50mm.

  • Fits: Honda CRF 450 R 2002-2006, CRF 450 R 2007-2008
  • Specs: Location: Intake; Material: Titanium; Number of Valves Included: 1; Head Diameter: 36.00mm; Length: 84.60mm; Stem Diameter: 5.50mm
  • ProX titanium valves are forged in one piece for extra strength and greater durability than OEM Titanium Valves
  • Uses a special Ti3Al alloy for better performance under high temperatures
  • CrN coating for extra hardness and less friction between valves and guides

Hi-Caliber Powersports Parts CARBURETOR + CHOKE STARTER VALVE PLUNGER REBUILD KIT for the 1988-1990 Honda TRX 300 Fourtrax ATVs

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Product description

Here's a NEW, top quality Hi-Caliber Powersports Parts carburetor rebuild kit & choke starter valve kit with precision machined components for the 1988-1990 Honda TRX300 2x4 & 4x4. (We offer the carb kits for the earlier and later year model 300 Honda Fourtrax as well!)  This kit includes the carburetor rebuild kit and the carburetor choke starter valve kit.  Don't waste your time rebuilding your old carb with cheap quality, inferior parts. Rebuild it right the first time with this quality kit and get your old ATV screaming again!!   Save money by buying these together in this kit instead of separately.  Our photos are exact photos of the items you will receive--they aren't generic photos like so many other companies have on their sites.  This carburetor kit also comes with FREE G&H Discount ATV Supply & Hi-Caliber Powersports Parts decal and FREE SHIPPING!!

  • Free Shipping
  • Free DECALS
  • Made in Taiwan

Prox Racing Parts 29.948190 9.48mm x 1.90mm Valve Shim, (Pack of 5)

Prox Racing Parts

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Product description

ProX Valve Shims are made of premium materials. Specified heat-treatment processes ensures the hardness of the shims to offer maximum durability and less wear. ProX shims are precision machined to the exact OEM size specifications. Shim refill packs are available for each individual size and contain 5 shims per pack.

  • Each shim is stamped with thickness size
  • Heat treated for hardness and maximum durability
  • Japanese vehicle shims
  • Packaged 5 shims per part number

New Puel Switch Shut-Off Valve Petcock Parts Replacement Fits Pulsar PG3500M 3500W Peak 3000W Rated Portable Gas-Powered Generator

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Product description

Replace Part Number: 16950-168-00

For Honda Generator EM3500X EM3500SX EM3500SXK1 EM3800SX.

Specification:

Thread size: M16 X 1.5MM (thread size about 5/8 in, thread pitch about 1/16 in).

Hex cap size: 22 MM (about 7/8 in),diameter of fuel outlet pipe: M6 MM (about 15/64 in).

  • 100% Brand New and All parts are tested and quality controlled prior to shipment.
  • Replace 16950-168-00 For Honda Generator EM3500X EM3500SX EM3500SXK1 EM3800SX.
  • Thread size: M16 X 1.5MM (thread size about 5/8 in, thread pitch about 1/16 in). Hex cap size: 22 MM (about 7/8 in),diameter of fuel outlet pipe: M6 MM (about 15/64 in).
  • The product is for real shooting, please check it carefully to make sure it is what you need.
  • Packing including: 1 X Fuel Valve Assembly as images display.

Hi-Caliber Powersports Parts QUALITY Carburetor Carb Choke Plunger Starter Valve Kit for the Honda TRX 400 Foreman ATVs

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Product description

This is a new Hi-Caliber Powersports Parts top quality Carburetor Choke Plunger Starter Valve Set for the 1995-2003 Honda TRX 400 Foreman.  If you need the other components for the carburetor, we also offer a Carburetor Rebuild kit for this model in our inventory. The kit includes all parts as shown in the photo above.  Our photos are exact photos of the items you will receive, not generic photos like so many of our competitors.  This kit comes complete with a FREE G&H DISCOUNT ATV SUPPLY & HI-CALIBER POWERSPORTS PARTS decal & FREE SHIPPING!!

  • Free Shipping
  • Free DECALS
  • Made in Taiwan

Yamaha PWC Dual Power Valve Kit W/Gasket & Seals GP GPR XL XLT 800 800R 2-Pack

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Product description

NEW YAMAHA PWC POWERVALVE REPLACEMENT KIT Includes: 2 Power Valve Assembly 2 Metal Power Valve Gasket 4 Shaft Oil Seals 2 Joint Cover Direct OE aftermarket replacement Exact item is Pictured Replaces Yamaha Part Valve 66E-1131A-03-00 Gasket66E-1131B-00-00 / 66E-1131B-01-00 /66E-1131B-02-00 Shaft Seal93109-08M07-00 Cover 66E-1131C-10-00 Fits: Yamaha GP800 1998-2000 GP800R 2001-2005 XL800 2000-2001 XLT800 2002-2003

  • 2 Pack - Yamaha PWC Power Valve Replacement Kit
  • Includes: 2 Power Valve Assembly / 2 Metal Power Valve Gasket / 4 Shaft Oil Seals / 2 Joint Cover
  • Replaces Yamaha Part# Valve 66E-1131A-03-00 / Gasket 66E-1131B-00-00 / 66E-1131B-01-00 / 66E-1131B-02-00 / Shaft Seal 93109-08M07-00 / Cover 66E-1131C-10-00
  • Fits: Yamaha GP800 1998-2000 / GP800R 2001-2005 / XL800 2000-2001 / XLT800 2002-2003
  • Direct OE aftermarket replacement, Exact item is Pictured

Zoom Zoom Parts Fuel Gas Petcock Valve Switch Pump For 2000 2001 2002 Yamaha YZ426F YZ 426F

Based on 12 reviews Check latest price

Product description

2000 2001 2002 Yamaha YZ426F YZ 426F Fuel Gas Petcock Valve Switch Pump

  • BRAND NEW FUEL PETCOCK
  • 2000 2001 2002 Yamaha YZ426F YZ 426F

User questions & answers

Question: Will this fit a 1994 yz
Answer: Yes!!

Yamaha PWC Power Valve Kit W/Gasket & Seals GP GPR XL XLT 800 800R 1200 1200R

Based on 1 reviews Check latest price

Product description

NEW YAMAHA PWC POWERVALVE REPLACEMENT KIT Includes: 1 Power Valve Assembly 1 Metal Power Valve Gasket 2 Shaft Oil Seals 1 Joint Cover Direct OE aftermarket replacement Exact item is Pictured Replaces Yamaha Part Valve 66E-1131A-03-00 Gasket 66E-1131B-00-00 / 66E-1131B-01-00 / 66E-1131B-02-00 Shaft Seal 93109-08M07-00 Cover 66E-1131C-10-00 Fits: Yamaha GP800 1998-2000 GP800R 2001-2005 XL800 2000-2001 XLT800 2002-2003 XL1200 Limited 1999-2000 XLT1200 2001-2005 GP1200R 2000-2002

  • Yamaha PWC Power Valve Replacement Kit
  • Includes: 1 Power Valve Assembly / 1 Metal Power Valve Gasket / 2 Shaft Oil Seals / 1 Joint Cover
  • Replaces Yamaha Part# Valve 66E-1131A-03-00 / Gasket 66E-1131B-00-00 / 66E-1131B-01-00 / 66E-1131B-02-00 / Shaft Seal 93109-08M07-00 / Cover 66E-1131C-10-00
  • Fits: Yamaha GP800 1998-2000 / GP800R 2001-2005 / XL800 2000-2001 / XLT800 2002-2003 / XL1200 Limited 1999-2000 / XLT1200 2001-2005 / GP1200R 2000-2002
  • Direct OE aftermarket replacement, Exact item is Pictured

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