2009 Honda CRF250R 13.5:1 78mm std bore x 52.2mm stroke (249cc) piston kit
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2009 Honda CRF250R 13.5:1 78mm std bore x 52.2mm stroke (249cc) piston kit
|
Make |
Honda |
|
Engine Size |
250cc |
|
Model |
CRF250R |
|
Year |
2009 |
|
Bore (mm) |
78mm |
|
Comp Ratio |
13.5:1 |
|
Piston Part Number |
M2060C |
|
Gasket Part Number |
C7185 |
|
Conrod Part Number |
PSR8822A |
|
Pin Part Number |
W630-1650-13CP1C |
|
Locks Part Number |
630x050 SWL |
|
Rings |
CP7800C |
|
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 | 2009 Honda CRF250R 13.5:1 78mm std bore x 52.2mm stroke (249cc) piston kit |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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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 is the recommended bore clearance for the M2060C piston kit?
For the M2060C piston kit, the recommended bore clearance should be set according to the specific application and builder's preference. Generally, a clearance of around 0.0025" to 0.0035" is typical for high-performance applications, but always refer to the manufacturer's guidelines and adjust based on your engine's specific needs.
What type of fuel is recommended for the 13.5:1 compression ratio of this piston kit?
For the M2060C piston kit with a 13.5:1 compression ratio, it is advisable to use high-octane fuel, typically 98 RON or higher, to prevent knocking and ensure optimal performance. Fuel quality can significantly affect engine reliability and performance.
Do I need to modify my cylinder head when using this piston kit?
Depending on your specific engine setup, you may need to modify the cylinder head to accommodate the increased compression ratio of the M2060C piston kit. It's essential to check for valve clearance and ensure that the combustion chamber is compatible with the new pistons.
What is included in the M2060C piston kit?
The M2060C piston kit includes two forged pistons, ring sets, wrist pins, and clips. This complete kit is designed for ease of installation and optimal performance in the 2009 Honda CRF250R.
What machining processes are necessary before installing the M2060C pistons?
Before installing the M2060C pistons, it's crucial to ensure that the cylinder bore is properly honed to the correct size and finish. Additionally, check that the ring gaps are set according to the supplied instructions, and confirm that the piston-to-cylinder clearance is within the recommended specifications.
