NLK Performance Racing One Way Starter Gear Wheel Copper Bush: Small Part, Big Starting Problems?
Intro: Is Your Bike Hard to Start — or Is the One Way System Failing Quietly?
Many starting problems don’t begin with a dead battery or faulty starter motor.
Instead, riders notice:
- Starter motor spins but engine hesitates
- Clicking or slipping sound during start
- Inconsistent cold starts
- Premature wear in the one way starter system
What often gets overlooked is one small but critical component:
The one way starter gear wheel copper bush.
This guide is for riders of Y15ZR, LC135, Y16ZR, NVX, RS150, and similar underbone or street motorcycles who are considering the NLK Performance Racing One Way Starter Gear Wheel Copper Bush, and want to decide:
- When replacing it actually solves the problem
- When it’s unnecessary
- And why ignoring it can damage more expensive parts
Who This Copper Bush Upgrade Is Actually For
This Part Makes Sense If You:
- Experience starter slipping or inconsistent engagement
- Hear abnormal noise during engine start
- Are rebuilding or servicing the one way starter system
- Ride daily and rely on consistent electric start
- Want to prevent wear on gears and housings
What the One Way Starter Gear Copper Bush Actually Does
1. Ensures Smooth Starter Engagement
The copper bush acts as a:
- Low-friction support surface
- Alignment guide for the starter gear
When worn, the starter gear can:
- Tilt or bind
- Slip during engagement
- Cause inconsistent starting behavior
A fresh, properly machined bush restores smooth engagement.
2. Reduces Wear on the One Way Starter System
A worn bush accelerates wear on:
- One way clutch gear
- Starter gear teeth
- Engine casing surfaces
Replacing the bush early helps:
- Extend the life of expensive components
- Prevent secondary damage
This is why workshops often replace it during rebuilds.
3. Improves Starting Reliability (Not Speed)
The goal is not faster cranking — it’s predictable engagement.
With a good copper bush:
- Starter engages cleanly
- Reduced slipping and noise
- More consistent cold and hot starts
Especially important for daily riders.
How NLK Performance Designs This Racing Copper Bush Differently
The NLK Performance Racing One Way Starter Gear Wheel Copper Bush is designed with:
- High-quality copper alloy for durability
- Precision machining for correct tolerances
- Smooth surface finish to reduce friction
Design priorities include:
- Stable gear alignment
- Reduced wear under repeated starts
- Compatibility with popular Yamaha underbone platforms
- Reliability for daily riding and racing builds
By working closely with workshops and riders, NLK ensures this part is:
- Practical, not cosmetic
- Affordable but not disposable
- Built for real usage cycles



