ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Namura

Namura Piston Kits W hy replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride’s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some applications. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price. N amura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.

Namura N Forged 4-Stroke Piston Kits N amura Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura’s exclusive forged alloy offers lower expansion rates, allowing for tighter build tolerances and superior tensile and yield strength at operating temperatures. A ll new Forged pistons come with Namura’s signature features: 100% CNC-machine piston domes, hard anodized domes for reduced carbon build-up and heat resistance and M0S2 coated skirts for excellent break-in protection and properties.

KAWASAKI 2-Stroke KDX 50 (Does not have machined smooth dome)

Piston Type

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

2003 - 06 41mm 1983 - 03 43mm 2000 - 23 44.5mm 1988 - 00 48mm 2001 - 13 48.5mm 2014 - 23 48.5mm 1995 - 13 52.5mm 2014 - 21 52.5mm 2022 - 24 52.5mm 1998 - 00 54mm 2001 - 02 54mm

+000.NT

.SI .SI

56-W826 56-W648 56-W752 56-W644 56-W782 56-W879 56-W651 56-W651

56-808 56-808 56-7992 56-807 56-807 56-807 56-807 56-807 56-807 56-800 56-800 56-800 56-800

KX 60 KX 65 KX 80 KX 85 KX 85

.A.NT .A.NT +A.NT .A.NT

13001-1536 13001-1630 13001-1497

56-R708 56-R707 56-R710 56-R709

.SI

.SI .SI .SI .SI .SI .SI .SI .SI .SI .SI

13001-1664/0006

.00A.NT

– – – –

KX 100 ( Twin Ring ) KX 100 ( Single Ring )

.A.NT

56-R763

.A.NT1 .A.NT1

– –

KX 112 KX 125 KX 125 KX 125 KX 125

56-W651 56-W741 56-W783 56-W822 56-W834 56-W150 56-W617 56-W844

+00A.NT 13001-1524

56-R704 56-R704 56-R704 56-R704 56-R771 56-R706 56-R727

+00A.NT 13001-1597/1607/1642

2003

54mm

.NT

13001-1634 13001-0009

2004 - 05 54mm 1996 - 03 54mm 1992 - 04 66.4mm 2005 - 08 66.4mm

.A.NT .A.NT .A.NT .A.NT

KMX 125

KX 250 KX 250

13001-1375/1604/1645

.SI .SI

56-881 56-881

4-Stroke

Piston Type

Years

Size

Piston Kit 56-W4418 56-W4842 56-W4920

Oem Ref

Piston Rings

Small End Bearing

KLR 250 KX 250F KX 250F KX 250F KX 250F KX 250F

1987 - 05 74mm 2004 - 05 77mm 2006 - 09 77mm 2010 - 14 77mm 2015 - 16 77mm 2017 - 19 77mm 2003 - 06 90mm 2003 - 06 94mm 2006 - 18 77mm 2008 - 19 77mm

.NT

– – – – – –

– – – – – – – – – –

56-R744 56-R728 56-R728

.A.NT .A.NT

.A.NT .A.NT

– – –

56-W952 56-W331

.A.NT .A.NT

56-W9952 56-W4713 56-W4713 56-W4980 56-W4980

KLX 400 Comp. 11.3:1

13001-S006

56-R733 56-K112

Big Bore, Hi-Comp 12.3:1

_400.A .A.N.HC .A.N.HC

– – –

.94_RING

KX 450F Comp. 12.8:1 KLX 450 Comp. 12.8:1

– –

*Please visit our website for current prices E56

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

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