Bulletin # PS-0409-15 April 2009

New Product

Wiseco Yamaha YZ250F 2001-09/ WR250F 2001-06 Big Bore Piston Kit

Motorcycle

Features Benefits Dedicated forging.. Light weight, superior strength, optimized design Stock Compression. Matches OEM compression ratio Dome design... Improved flame travel to maximize air/ fuel burn efficiency Chrome plated piston pin. Reduced friction, improved scuff resistance Horizontal slot pin oiling.. Improved lubrication, better pin oiling, reduced friction Pressure seal groove.. Maximum ring seal ArmorGlide skirt coating.. Reduced friction, quieter operation, improved scuff resistance Dedicated rings.. Optimized for each application, light weight, high perfromance, better oil control Experience.. 68 years as the industry leader in forged piston technology
Piston sold complete with: Rings, piston pin, and circlips. Complete top end kits sold complete with: Piston, rings, piston pin, circlips, and complete top end gasket kit. Prices (USA): Complete Top End Rebuild Kit: TBA, Replacement Piston: $237.08
Bore x Stroke (mm) 76 x 53.6 Bore Size (mm) 83.00 Top End Kit TBA Price Per Piston $237.08 Repl. Pin & Clips S677 CW16
Top End Kit Piston Kit Number Price TBA 4982M08300

Repl. Ring Set 3268XG

Top End Gasket Kit W6677
Yamaha YZ250F WR250F 13:1 Compression 290cc Big Bore Skirt Coated

2001-09 2001-06

Copyright 2009 Wiseco Piston Co., Inc. 7201 Industrial Park Blvd. Mentor, OH 44060-5396 440-951-6600 Fax: 440-951-6606 www.wiseco.com

Bulletin# AC-1008-6 October 2008
Wiseco High Performance Camshaft- Yamaha YZ250F 2001-08

Motorcycle

New Product
Wisecos new Camshafts are made from premium materials, state-of-the-art forgings, machined to exact tolerances, and specifically engineered for high performance and maximum durability. Brought to you by one of the most trusted names in the industry. Wiseco.
Wiseco Cam- blue OEM Cam- red
Wisecos new high-performance camshafts for the Yamaha YZ250F produce 3% horsepower and 3% torque gain over the stock OEM camshaft across the entire RPM range.
Features Benefits Polished lobes.. Reduced friction and wear. Easy installation. Drops in without any engine/ head modifications. Made from dedicated forgings. No core exchange required. Polished lobe design.. Designed for overall HP and torque gain. Asymmetric design for better performance & less valve wear. Dyno and field tested.. Assures perfect match with Wiseco high performance forged pistons
Each camshaft includes hi-performance assembly lube. Prices (USD): $209.95 YZ250F WR250F Wiseco Part # 2001-08 WCI008 WCE008 Intake Exhaust Lift (mm) 8.26 (.325) 8.51 (.335) Duration (at 1.25mm) Valve Lash (mm) 0.25 (.010) 0.25 (.010)
Copyright 2008 Wiseco Piston Co., Inc. 7201 Industrial Park Blvd. Mentor, OH 44060-5396 440-951-6600 Fax: 440-951-6606 www.wiseco.com