Home/KIBBLEWHITE, VALVE SPRING KITS, YAMAHA/Racing Spring Kit, Titanium, 0.380″ Lift, Various Yamaha® Applications # 80-80206

Racing Spring Kit, Titanium, 0.380″ Lift, Various Yamaha® Applications # 80-80206

$449.90

1 in stock (can be backordered)

Yamaha® YFZ™ 450 2004-2009
Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R 2009-2020
Yamaha® YFZ™ 450SE 2010-2020
Yamaha® WR™ 450 2003-2015
Yamaha® YZ™ 450F 2003-2009

SPRING KIT STEEL VALVE CONVERSION

1 in stock (can be backordered)

Frequently Bought Together

Valve, White Diamond® Stainless, +1mm O/S Outer INTAKE, Various Yamaha® Applications #80-80214H

Yamaha® YFZ™ 450 2004-2009
Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R 2009-2020
Yamaha® YFZ™ 450SE 2010-2020
Yamaha® WR™ 450 2003-2015
Yamaha® YZ™ 450F 2003-2009

  • +1mm O/S Outer INTAKE
  • 2 required

YAMAHA YZ450F 03-09 INTAKE VALVE GUIDE - 80-80220

YAMAHA YZ450 03-09

  • INTAKE VALVE GUIDE
  • 80-80220 (STD)
  • C630 BRONZE

Valve, White Diamond® Stainless, +1mm O/S Center IN, Various Yamaha® Applications # 82-80216H

Yamaha® YFZ™ 450 2004-2009
Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R 2009-2020
Yamaha® YFZ™ 450SE 2010-2020
Yamaha® WR™ 450 2003-2015
Yamaha® YZ™ 450F 2003-2009

  • +1mm O/S Outer INTAKE
  • 1 required

Guide, C674, EX STD, Various Yamaha® Applications # 80-80230

YAMAHA YZ450 03-09

  • EXHAUST VALVE GUIDE
  • 80-80230 (STD)
  • C630 BRONZE

Valve, White Diamond® Stainless, +1mm O/S EXHAUST, Various Yamaha® Applications # 80-80218H

Yamaha® YFZ™ 450 2004-2009
Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R 2009-2020
Yamaha® YFZ™ 450SE 2010-2020
Yamaha® WR™ 450 2003-2015
Yamaha® YZ™ 450F 2003-2009

  • +1mm O/S Exhaust
  • 2 required

Description

Yamaha® YFZ™ 450 2004-2009
Yamaha® YFZ™ 450X 2008-2011
Yamaha® YFZ™ 450R 2009-2020
Yamaha® YFZ™ 450SE 2010-2020
Yamaha® WR™ 450 2003-2015
Yamaha® YZ™ 450F 2003-2009

 

Since 1939, KPMI® has taken great pride in our ability to design innovative performance improvements for valvetrains. This innovative ability has never been more apparent than with the development of the high tech lightweight racing valve spring kits for the incredibly stressed and torturous environment in today’s high revving 4-stroke engines.
The challenge to engineer a valvetrain that would outperform OEM systems, that in some cases included titanium components, was not an easy one. This task would require the concentrated efforts of every member of KPMI®’s design team. It was apparent early on that an OEM style spring with a bit more pressure was not going to be the complete answer for these engines. Working together as a team enabled KPMI® to evolve with a “unified system” approach. In fact, these innovative high performance lightweight valve spring kits, would not only outperform factory parts, but outlive them as well.
Each KPMI® spring kit is designed for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm, just to name a few!
Today KPMI® proudly offers complete high performance lightweight valve spring kits for a host of applications.

Installation Instructions Click Here
Type Intake / Exhaust
Retainer Material Titanium
Valve Lift 0.380″
Installed Height 1.105″
Seat Pressure 39#
Open Pressure 86#
@ Lift 0.380″

Additional information

Weight .2 kg
Dimensions 16 × 10 × 5 cm

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