2026 KPMI Full Catalog V1 - Flipbook - Page 118
HONDA CRF 250R 2004-'07 / 250X 2004-'17
®
™
HONDA
Top End Service Kit
KPMI P/N
Piston
Bore Size
Type
Max
Valve Lift
Installed
Height
Open
Pressure
Seat
Pressure
@ Lift
Intake
.350”
1.320”
50#
145#
.350”
Exhaust
4
In / Ex Titanium Retainers
4
In / Ex CrSi Valve Springs
4
4
In / Ex H. T. Steel Basewashers
In / Ex Red Viton® Seals
Kit Includes
2
In Black Diamond™ Valves
2
Ex Black Diamond™ Valves
1
High Performance Piston Kit
1
Top End Gasket Kit
IMPORTANT NOTE: The piston assembly (piston, rings, pin and pin clips) in this kit are designed to work
together as a system. When used complete, the piston assembly can be used as an OEM replacement.
The individual components are NOT INTERCHANGEABLE with O.E.M. piston assembly components.
30-33700 78.00mm
Components • Replacement • Top End Service Kit
Speci昀椀cation
KPMI P/N
Description
30-30590
Spring Kit
30-30630
Intake, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
30-30633
Exhaust, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
30-33701
Gasket Kit
Includes: Ti Retainers, CrSi Valve Springs, H.T. Steel Basewashers, Red Viton® Seals
Includes: Head Gasket 78mm (1), Base Gasket (1), Cam Chain Tensioner Gasket (1), Exhaust Gasket (1),
Cam Chain Tensioner Bolt Seal (1), Head Oil Drain Cap O-ring (1), Water Outlet O-ring (1), Air Recirculation
Valve Seal (1)
*These components are intended for use with the KPMI® Top End Kit and are not intended for OEM compatibility.
Cylinder Head Service Kit
KPMI P/N
Type
30-33300
Intake
Exhaust
Kit Includes
Max Valve Lift Installed Height Seat Pressure
.350”
1.320”
Open Pressure
@ Lift
145#
.350”
50#
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
2
In Std. C674 Valve Guides
2
Ex Std. C674 Valve Guides
4
1
Top End Gasket Kit
In / Ex Red Viton® Seals
Components • Replacement • Cylinder Head Service Kit
KPMI P/N
Description
30-30590
Spring Kit
Speci昀椀cation
Includes: Ti Retainers, CrSi Valve Springs, H.T. Steel Basewashers, Red Viton® Seals
30-30630
Intake, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
30-30633
Exhaust, Standard Valve
Valve • Black Diamond™ • Black Nitroneg Stems
30-30610
Intake, Standard Valve Guide
Valve Guide • C674 Bronze
30-30620
Exhaust, Standard Valve Guide
30-33301
Gasket Kit
Valve Guide • C674 Bronze
Includes: Head Gasket 78mm (1), Base Gasket (1), Cam Chain Tensioner Gasket (1), Exhaust Gasket (1),
Cam Chain Tensioner Bolt Seal (1), Head Oil Drain Cap O-ring (1), Water Outlet O-ring (1), Air Recirculation
Valve Seal (1)
Intake Only • Steel Valve Conversion Kit
KPMI P/N
Type
Max Valve Lift
Installed Height
30-31200
Intake
.350"
1.320"
2
CrSi Valve Springs
Kit Includes
100
2
order 650-557-2046
2
Seat Pressure Open Pressure
50#
Titanium Retainers
Black Diamond™ Valves
2
145#
2
@ Lift
.350"
H. T. Steel Basewashers
Red Viton® Seals
