Banshee throttle response upgrade Archives -

Genuine Keihin PWK Carburetors (2), Banshee

Genuine Keihin PWK Carburetors 33MM, 35mm or 39mm, sold as pair.

Product Overview
Product Type	Carburetor Set (Pair)
Brand	Keihin (Genuine OEM)
Model	PWK Series
Application	Yamaha Banshee 350
Technical Specifications
Engine Type	2-Stroke, Twin-Cylinder
Slide Type	Flat Slide
Quantity	2 Carburetors
Fuel Type	Gasoline
Jetting	Fully Replaceable / Tunable
Intake Mount	Spigot / Rubber Boot
Use	Performance, Racing, Trail, Dunes
Compatibility	Most stock and modified Banshee engines

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$675.00

Banshee (’87-’06)(+4mm stroke) with +5mm longer rods; Produces up to 403ccFactory welded, trued, and balancedImportant: Requires Vertex Long Rod pi…

Product Overview
High-performance stroker crankshaft engineered for the Yamaha Banshee 350, designed to increase stroke by 4mm over OEM specifications. Built using aerospace-grade forged steel and CNC-machined for extreme durability, precision fitment, and smooth high-RPM operation in both stock and aftermarket engines.
Technical Specifications
Stroke Increase	+4 mm over OEM
Material	Aerospace-grade forged steel alloy
Manufacturing	CNC-machined, precision heat-treated
Weight	Approx. 4.5 lbs (varies slightly by batch)
Balance	Dynamic balancing for smooth operation
Compatibility	Yamaha Banshee 350 (1987–2006), stock and aftermarket engines
Spline Count	OEM specification for perfect clutch fitment
Tolerance	±0.01 mm for exact fit
Warranty	Limited manufacturer warranty on defects
Packaging	Includes new crankshaft bearings and seals

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$179.95

These K&Ns Attach Directly To Your Banshee Carbs For MAXIMUM Air Flow! This Application Is MANDATORY When Adding After Market Exhaust Systems!

Product Overview
Brand	K&N Engineering
Product Type	High-Performance Air Filter
Technical Specifications
Filter Media	Oiled multi-layer cotton gauze
Frame Material	Molded rubber
Washable & Reusable	Yes
Airflow Rating	High-flow performance design
Filtration Efficiency	Optimized for 2-stroke engines
Fitment	Yamaha Banshee 350 (multiple years)
Application	Stock and modified engines
Maintenance Interval	Clean and re-oil as needed

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$136.00

Product Overview
Printing clearly differentiated like clearly
Technical Specifications
Reed Petal Material	High-grade Carbon Fiber or Fiberglass Composite
Reed Cage Material	CNC Machined Aerospace Aluminum or Stainless Steel
Compatible Models	Yamaha Banshee 350 (1987–2006)
OEM-Exact Fitment	Yes
Included Components	Reed valve petals (set), reed cage, intake gaskets, mounting hardware
Weight	Lightweight design, minimal impact on engine balance
Heat Resistance	Up to 300°C (572°F) continuous operation
Airflow Optimization	Engineered for maximum volumetric efficiency
Maintenance Interval	Recommended inspection every 15,000 miles or 6 months under aggressive riding conditions
Warranty	12-month limited manufacturer warranty

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Technical Specifications
Engine Compatibility	Yamaha Banshee 350cc twin-cylinder 2-stroke (1987–2006)
Base Design	Yamaha YZ250 motocross expansion chamber style
Material	Aerospace-grade mandrel-bent steel tubing
Finish	Black anodized corrosion-resistant coating
Welding	TIG welded seams for strength and leak prevention
Weight	Approx. 3.5 lbs (lighter than OEM pipe)
Mounting	OEM exact-fit mounts, no modification needed
Sound Level	Aggressive 2-stroke bark, race-legal volume (varies by region)
Performance Gain	+10–15% peak horsepower increase typical
Installation Time	30-45 minutes average
Includes	Mounting hardware and detailed instructions

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