2003-2006 Kawasaki KFX400 12.5:1 94mm +4mm oversize bore x 62.2mm stroke (434cc) piston kit
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2003-2006 Kawasaki KFX400 12.5:1 94mm +4mm oversize bore x 62.2mm stroke (434cc) piston kit
|
Make |
Kawasaki |
|
Engine Size |
400cc |
|
Model |
KFX400 |
|
Year |
2003-2006 |
|
Bore (mm) |
94mm |
|
Comp Ratio |
12.5:1 |
|
Piston Part Number |
M3003 |
|
Gasket Part Number |
C7979 |
|
Conrod Part Number |
PSR5485 |
|
Pin Part Number |
W787-2000-15CP1C |
|
Locks Part Number |
787x050 SWL |
|
Rings |
CPN2-3701 |
|
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 | 2003-2006 Kawasaki KFX400 12.5:1 94mm +4mm oversize bore x 62.2mm stroke (434cc) 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 M3003 piston kit?
For the M3003 piston kit, the recommended bore clearance typically ranges between 0.0025" to 0.0035". However, it is crucial to consult the specific instructions provided with the kit and adjust based on your engine's application and operating conditions.
What type of rings are included with the M3003 piston kit?
The M3003 piston kit includes CP's CPN2-3701 ring sets, which are designed for high-performance applications. Ensure that you follow the manufacturer's guidelines for ring end gaps and installation to achieve optimal performance.
Can I use the M3003 piston kit with stock conrods?
While the M3003 piston kit can be used with stock conrods, it is advisable to check for compatibility and ensure that the conrods can handle the increased performance and compression ratio. Upgrading to performance conrods may provide better reliability under higher loads.
What is the compression ratio of the M3003 piston kit, and how does it affect performance?
The M3003 piston kit has a compression ratio of 12.5:1. This higher compression ratio can lead to increased power output and responsiveness, but it also requires high-quality fuel and precise tuning to prevent knocking and ensure engine reliability.
What machining processes are recommended before installing the M3003 piston kit?
Before installing the M3003 piston kit, it is recommended to ensure that the cylinder bore is properly honed to match the piston size and that the piston-to-wall clearance is set correctly. Additionally, check that the crankshaft and connecting rods are in good condition and balanced as part of the overall assembly.
