2004-2020 Yamaha YFZ450/R Race 13.5:1 95mm std bore piston kit
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2004-2020 Yamaha YFZ450/R Race 13.5:1 95mm std bore 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 |
MX1026 |
|
Gasket Part Number |
YFZ450 C3066 YFZ450R C7908 |
|
Conrod Part Number |
04-05 PSR9660A 06-08 custom 09-20 PSR8808A |
|
Pin Part Number |
S787-2000-15C |
|
Locks Part Number |
787x050 SWL |
|
Rings |
CPN2-2-3740 |
|
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/R Race 13.5:1 95mm std bore piston kit |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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Product images are for description purposes only. Actual product may vary.
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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 is the recommended bore clearance for the MX1026 piston kit?
For the MX1026 piston kit, the recommended bore clearance is typically between 0.0025" to 0.0035". However, it's crucial to consult the specific instructions provided with the kit and adjust based on your engine's application and tolerances.
What type of fuel is best suited for the 13.5:1 compression ratio of the MX1026 pistons?
The 13.5:1 compression ratio of the MX1026 pistons is best suited for high-octane fuel, typically 98 RON or higher. This helps prevent detonation and ensures optimal performance, especially in high-performance applications.
Do I need to modify my cylinder head when using the MX1026 piston kit?
Depending on your specific setup and desired performance, you may need to modify your cylinder head for optimal clearance and combustion efficiency. It's advisable to check piston-to-valve clearance and adjust as necessary during the build.
What is included in the MX1026 piston kit?
The MX1026 piston kit includes two forged pistons, a complete set of rings, wrist pins, and clips. This comprehensive kit ensures you have all the necessary components for installation.
How should I break in the engine after installing the MX1026 pistons?
After installing the MX1026 pistons, it's important to follow a proper break-in procedure. This typically involves varying engine RPMs and avoiding full throttle for the first few hundred kilometres to allow the rings to seat properly and ensure longevity.
