2004-2020 Yamaha YFZ450 13.5:1 95mm std bore platinum series 1mm smaller pin/ 3.5mm long rod, profiled pin bore pro race piston kit
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2004-2020 Yamaha YFZ450 13.5:1 95mm std bore platinum series 1mm smaller pin/ 3.5mm long rod, profiled pin bore pro race piston kit
|
Make |
Yamaha |
|
Engine Size |
450cc |
|
Model |
YFZ450 / YFZ450R |
|
Year |
2004-2020 |
|
Bore (mm) |
95mm |
|
Comp Ratio |
13.25:1 439cc 13.5:1 449cc |
|
Piston Part Number |
MX1P26-P |
|
Gasket Part Number |
YFZ450 C3066 YFZ450R C7908 |
|
Conrod Part Number |
04-05 Custom 06-07 Custom 09-20 PSR8802A |
|
Pin Part Number |
S748-2000-15C |
|
Locks Part Number |
748x050 SWL |
|
Rings |
CP9500C |
|
Shelf (RPO) or Made to Order (MTO) |
ROP |
Proudly made in the USA by CP Carrillo Pistons!
- Fully CNC machined
- Balanced to +/- 1 gram
- Double forced pin oilers
- Forged from high strength 2618 alloy
- Designed for maximum performance, horsepower and reliability
- Complete kit includes two pistons, ring sets, wrist pins and clips
- Follow ring end gap and piston to cylinder clearances as per the supplied instructions
| Product Name | 2004-2020 Yamaha YFZ450 13.5:1 95mm std bore platinum series 1mm smaller pin/ 3.5mm long rod, profiled pin bore pro race piston kit |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the specific machining requirements for the MX1P26-P piston kit?
For the MX1P26-P piston kit, ensure that the bore clearance is set according to the supplied instructions, typically around 0.0020" to 0.0025" for optimal performance. Additionally, verify that the ring gaps are adjusted to the recommended specifications to prevent issues under high RPM and load.
What type of conrod is compatible with the MX1P26-P piston kit?
The MX1P26-P piston kit is designed to work with specific conrods. For models from 2004-2005, a custom conrod is required. From 2006-2007, a different custom conrod is needed, while models from 2009-2020 should use the PSR8802A conrod. Always ensure the conrod matches the piston pin size and length.
What is the expected compression ratio when using the MX1P26-P pistons?
The MX1P26-P piston kit provides a compression ratio of 13.5:1 for a 449cc engine. This high compression ratio is designed for performance applications, but be mindful that actual performance will depend on factors such as fuel quality, tuning, and engine setup.
Are there any specific installation tips for the MX1P26-P piston kit?
When installing the MX1P26-P piston kit, ensure that the pistons are oriented correctly with the markings facing the front of the engine. Use the supplied wrist pins and clips, and double-check that the piston to cylinder clearance and ring end gaps are within the specified tolerances for reliable operation.
What materials are used in the construction of the MX1P26-P pistons?
The MX1P26-P pistons are forged from high-strength 2618 alloy, which provides excellent durability and resistance to thermal expansion. This material choice, combined with the pistons being fully CNC machined and balanced, ensures they are well-suited for high-performance applications.
