CP Pistons Yamaha Raptor 350 ATV Piston Kits Standard
Bore & Big Bore

CP Pistons, for those that demand the
ultimate in engine performance!
High performance and racing Yamaha piston kits are available from CP
Pistons for all model years of the Yamaha Raptor 350 four stroke ATV's. Standard bore size
and big bore Raptor 350 CP Pistons Yamaha ATV 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 ATV 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 |
|
| MDK/Lucas Oil/Yamaha |
White Bros. Yamaha |
Rick Ware Racing |
Team Solitaire |

| Standard Features included with each Yamaha Raptor
350 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 |
Each of the below kits
include:
Piston
Piston Pin
Piston Rings
Pin Locks
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.
Click on the part number
in the table below for pricing or to order the piston and, or head gasket of your choice.
2005 - 2006 Yamaha Raptor 350 Piston Kit and Big
Bore Raptor 350 Pistons
Stock Bore is 83mm (3.268")
Stock Stroke is 64.5mm (2.539") |
| Part # |
Bore Size |
Cubic
Centimeters |
Compression |
Top End Gasket Kit # |
Installation
Notes |
| cp m1012 |
83mm std. |
349cc |
10.5-1 |
cp c7096 |
deglaze cylinder |
| cp m1013 |
83.5mm +0.5mm |
353cc |
10.5-1 |
cp c7096 |
bore and replate cylinder |
| cp m1014 |
84mm +1mm |
357cc |
10.5-1 |
cp c7096 |
bore and replate cylinder |
|