Home Yamaha YZ400, CR250R, CR125R Diaphragm Valve System (1998-2002)

Yamaha YZ400, CR250R, CR125R Diaphragm Valve System (1998-2002)

NOW $51.00
Or 4 interest-free payments of $12.75
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Features:
- Precision-engineered for Yamaha YZ400, CR250R, and CR125R (1998-2002)
- Improved throttle response and power delivery
- Easy installation with included mounting hardware
- Compatible with various engine options for optimal performance
- Enhances bike styling and functionality for a competitive edge

Diaphragm Valve System for Yamaha YZ400, CR250R, CR125R (1998-2002)

Includes: Diaphragm valve assembly, mounting hardware, installation instructions

Fits Models: Yamaha YZ400, Yamaha CR250R, Yamaha CR125R

Model Years: 1998 - 2002

Submodels: YZ400F, CR250R, CR125R

Engine Options: 400cc, 250cc, 125cc

Description: Upgrade your Yamaha YZ400, CR250R, or CR125R with our high-performance Diaphragm Valve System, designed specifically for models from 1998 to 2002. This advanced valve system enhances throttle response and improves overall engine performance, ensuring a smoother ride and increased power delivery. Engineered for durability and precision, it seamlessly integrates with your existing setup, making installation straightforward. Experience enhanced styling and functionality while maximizing your bike's potential on the track or trail.

Elevate your riding experience with this essential upgrade for your Yamaha motorcycle!

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

Product Enquiry

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