2026 KPMI Full Catalog V1 - Flipbook - Page 311
YAMAHA VARIOUS 660'S 2001-2008
®
RAPTOR™ 2001-2005
•
GRIZZLY™ 2002-2008
RHINO™ 2004-2007
•
YAMAHA
•
Cylinder Head Studs • H.T. Steel
KPMI P/N
80-82600
Quantity
Body Dia.
“C”
“A”
“B”
4
0.319”
5.0”
1.65”
.95”
Quantity
Body Dia.
“D”
“E”
“F”
2
0.319”
2.2”
.70”
.70”
H. T. Steel Studs
6
H. T. Steel Nuts
Kit Includes
6
6
H. T. Steel Washers
KPMI® Cylinder Head Studs are made from 180,000 psi yield strength, 昀椀ne grain, heat treated, aircraft grade alloy steel. When you want a stud that meets proofstress and maximizes clamping force, look no further. KPMI® “rolls” the threads, heat treats and then centerless grinds the entire body of the stud. Rolling the
threads creates the toughest and strongest thread possible and centerless grinding removes notch sensitivity. The 昀椀nal process for all KPMI® Studs is to encase
the entire stud with premium corrosion resistant treatment of Black Oxide. Congratulations on your choice to purchase a stud that meets and exceeds your stockreplacement of high-performance needs!
Cylinder Head Nuts
KPMI P/N
Hex Pattern
Material
O. L.
F. D.
Thread
Quantity
41008-4
11mm
Material
0.315”
0.615”
M9 x 1.25
Pkg. of 4
Replacement nuts for Stud Kit, #80-82600, but can be used for general purpose (see diagram for detail)
KPMI® nuts are single point machined from high tensile strength Aircraft Alloy Steel. During the machining process close tolerances and smooth surface 昀椀nishes are
maintained. Two critical factors for achieving correct 昀椀t and torque. After machining, the nuts are heat treated to a speci昀椀c depth. This creates hard, wear resistant working
surfaces, while retaining a ductile core to prevent cracking under load. The premium black oxide treatment provides excellent corrosion resistance and appearance.
YAMAHA VARIOUS 700'S 2006-2025
®
•
•
GRIZZLY™ 2007-2015
GRIZZLY™ 2019-2025
•
•
RAPTOR™ 2006-2025
RHINO™ 2008-2013
•
•
VIKING™ 2014-2025
KODIAK™ 2019-2025
Valve Spring Kit • Lightweight Racing
KPMI P/N
Type
Max Valve Lift Installed Height
Seat Pressure
Open Pressure
@ Lift
54#
195#
.480"
Intake
80-80410
.480”
1.420"
Exhaust
4
Kit Includes
Titanium Retainers
4
CrSi Valve Springs
4
H. T. Steel Basewashers
Cylinder Head Service Kit
KPMI P/N
80-82080
Type
Max Valve Lift Installed Height Seat Pressure
Intake
.480”
Exhaust
Kit Includes
1.420”
54#
Open Pressure
@ Lift
195#
.480”
4 In / Ex Titanium Retainers 4 In / Ex CrSi Valve Springs 4 In / Ex H. T. Steel Basewashers
2 In Std. Black Diamond™ Valves 2
Ex Std. Black Diamond™ Valves
4
In / Ex Std. C630 Valve Guides
1
Top End Gasket Kit
Components • Replacement • Cylinder Head Service Kit
Description
Spring Kit
80-82081
Speci昀椀cation
Includes: Ti Retainers, CrSi Valve Springs, H.T. Steel Basewashers
Intake, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
Exhaust, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
Intake / Exhaust, Standard Valve Guide Valve Guide • C630 Bronze
Includes: Head Gasket 103mm Bore (1), Base Gasket, Exhaust Gasket (2), Throttle Body O-ring (1), Water
Gasket Kit
Pump O-ring (1), Thermostat O-ring (1), Cam Cover O-ring (1), Valve Cover O-rings (2), Valve Seal (4), Cam
Chain Tensioner Gasket (1)
293
KPMI P/N
80-80410
80-80430
80-80433
80-80420
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