2005-2013 YZ250F 13.5:1 80mm +3mm bore x 53.6mm stroke (269cc) piston kit
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2005-2013 YZ250F 13.5:1 80mm +3mm bore x 53.6mm stroke (269cc) piston kit
|
Make |
Yamaha |
|
Engine Size |
250cc |
|
Model |
YZ250F |
|
Year |
2005-2013 |
|
Bore (mm) |
80mm |
|
Comp Ratio |
13.5:1 |
|
Piston Part Number |
MX1050C |
|
Gasket Part Number |
C3059 |
|
Conrod Part Number |
PSR8807A |
|
Pin Part Number |
S630-1650-13C |
|
Locks Part Number |
630x050 SWL |
|
Rings |
CP8000C |
|
Shelf (RPO) or Made to Order (MTO) |
MTO |
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 | 2005-2013 YZ250F 13.5:1 80mm +3mm bore x 53.6mm stroke (269cc) 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 recommended piston-to-cylinder clearances for the MX1050C piston kit?
For the MX1050C piston kit, it is crucial to follow the manufacturer's instructions for piston-to-cylinder clearances. Typically, a clearance of 0.0025" to 0.0035" is common for high-performance applications, but always verify with the specific guidelines provided with the kit.
What type of fuel is recommended for the 13.5:1 compression ratio of the MX1050C piston?
For the 13.5:1 compression ratio of the MX1050C piston, it is recommended to use high-octane fuel, typically 98 RON or higher, to prevent detonation and ensure optimal performance. Always consider tuning for the specific fuel used.
Do I need to modify my cylinder head to use the MX1050C piston kit?
While the MX1050C piston kit is designed for a direct fit in the YZ250F, it is advisable to check for any necessary modifications to the cylinder head, such as valve clearance, especially when increasing compression. Machining may be required depending on the overall engine setup.
What is included in the MX1050C piston kit?
The MX1050C piston kit includes two pistons, ring sets, wrist pins, and clips. Ensure that all components are inspected for quality and fitment before installation.
Is balancing required when installing the MX1050C piston kit?
Yes, it is important to balance the entire rotating assembly when installing the MX1050C piston kit. This ensures smooth operation and longevity of the engine, especially at higher RPMs.
