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YZ450F Piston CP Pistons
YZ 450 High Compression, Standard Bore and Yamaha YZ450F Big Bore Piston Kits
CP Pistons, for those that demand the
ultimate in engine performance!
High performance and racing Yamaha YZ 450 piston kits are available from CP
Pistons for all model years of the YZ450F four stroke dirt bikes. Standard bore and
big bore YZ450F piston kits are all available here. These
forged pistons will work with oversize valves as well as high lift camshafts as they
include oversize valve reliefs. They incorporate a "X" style forging for greater
strength, durability and reduced weight. Along with the full radius dome designs, high
performance piston rings and lightweight piston pins, these pistons offer the highest
quality and are engineered for maximum power output.
CP Pistons dirt bike racing pistons are
used by top professional riders and teams including:
| Team Suzuki |
Ricky Carmichael |
Ivan Tedesco |
Ryan Dungey |
| MDK Speed |
David Vuillemin |
Nick Wey |
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| MDK/Lucas Oil/Yamaha |
White Bros. Yamaha |
Rick Ware Racing |
Team Solitaire |
Standard Features included with each Yamaha YZ450F
CP Piston Kit: |
| Double forced pin oilers |
Fully CNC Machined |
| Accumulator groove |
Pick lock removal grooves |
| Anti detonation grooves |
X-style forging |
| Light weight pins |
Balanced to + or - 1 gram |
Cometic top end gasket sets are available separately, but
are not included with the piston kit. The matching top end gasket kit for each application
is listed in the table below, along with the individual piston kit info.
2003 - 2009 Yamaha YZ 450 F CP Piston Kit
- Stock
Bore size is 95mm (3.740") Stock Stroke is 63.4mm (2.496")
- Disp.= Engine size in ccs
- Comp = Compression
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| Part # |
Bore Size |
Disp |
Comp |
Top End Gasket Kit # |
Installation
Notes |
| cp m1010 |
95mm std. |
450 cc |
13.0-1 |
cp c7947est 2003 - 2005
cp c7908est 2006 - 2009 |
deglaze cylinder |
| cp m1011 |
95mm std. |
450 cc |
13.5-1 |
cp c7947est 2003 - 2005
cp c7908est 2006 - 2009 |
deglaze cylinder |
| cp m1030 |
+2mm 97mm big bore |
468cc |
13.0-1 |
cp c3064 2003-2007
cp c3178 2009 |
bore and replate cylinder |
| cp m1031 |
+2mm 97mm big bore |
468cc |
13.5-1 |
cp c3064 2003-2007
cp c3178 2009 |
bore and replate cylinder |
| cp m1051 |
+3mm 98mm big bore |
478cc |
13.5-1 |
e-mail or call us |
requires sleeve or cylinder |
2003 - 2009 YZ 450F PISTON FULL RACE
Stock Bore size is 95mm (3.740") Stock Stroke is 63.4mm (2.496")
Full
race model pistons are custom forged pistons but available off the shelf. These are
single ring, high
compression, lightweight pistons which feature a highly efficient dome design that
maximizes squish
without compromising performance. Lateral gasports are added to maximize ring seal while a
skirt coating is included to provide additional lubrication, minimizing friction in extreme
conditions. The full race
pistons come complete with high performance rings, lightweight pins and locks. |
| cp m1043 |
95mm std. |
450 cc |
13.75-1 |
cp c7947est 2003 - 2005
cp c7908est 2006 - 2009 |
deglaze cylinder |
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Motocross Dirt Bike and ATV DVD Videos
Motocross Quad ATV and Dirt Bike Books
The piston and gaskets listed on this page fit the
following model year YZ450F Dirt Bikes:
2003 2004 2005 2006 2007 2008 2009 Yamaha YZ 450F Piston Kits and Gaskets
© Motorsports Parts Corporation T/A Campbell Enterprises. All rights reserved
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