Welcome to the Buggy Parts NW Information Center.

This area is a guide to give you information about mini-buggies, their engines, and the various available performance upgrade options. Basically, we'll be talking about what does what, and how you can make it better!

BPNW's how-to guides will make the process of upgrading your go-kart easy! Each how-to guide has a "print" feature at the top of the page for your convenience.

We've broken down the engine systems into several different categories with subcategories in each.

Click the bold name of any of the sections below to see that article.

Where should I start? - Suggested mods

- Just starting out with modding your buggy? Here's some suggestions to get you started!

How does it work?

The following articles explain what the various components of the engine on your buggy do.

Airflow and exhaust

- Air Intake
- Carburetor and Jets
- Exhaust

Continuously Variable Transmission (CVT) System

- Variator (drive pulley)

- Clutch (driven pulley)

Electrical System (section under construction)

- CDI, coils, and wiring

BPNW How-to Guides

Air, Carburetor, and Exhaust Guides

- Replacing a Stock Air Intake With a UNI Filter

Increase your performance with a UNI filter air intake. Here's how!

- Installing the BPNW Intake Riser Package

Install that 30mm carburetor you've always wanted on your GY6 150cc buggy!

- Install a throttle cable into the Koso slide carburetor

If you've picked up one of our great Koso slide carburetor and throttle cable packages, here's how to put it all together!

- Rejet the Carburetor: Changing the Main Jet

Got a new air intake, carburetor, or exhaust? Look here for instructions on how to change the main jet in your carburetor to make it all work together! Includes troubleshooting and testing.

CVT system Guides

- How To Install Dr Pulley Slider Weights

This guide covers specifically how to install the Dr Pulley Slider Weights product into your variator.

- Upgrading the CVT System for GY6 150cc

This comprehensive guide covers how to change the variator, clutch, rollers/sliders, drive belt, and clutch main torque spring on your GY6 150cc buggy. If you are doing any or all of these mods, this is the place to look!

- Upgrading the CVT System for 250cc go-karts

Same topics as the 150cc guide, but for 250cc buggies!

Engine Guides

- Engine Clinic - Adjusting the Valves on GY6 150cc motors

A guide on how to adjust the valves in your GY6 150cc engine!

- Engine Clinic - Adjusting the Valves on 250cc motors

A video tutorial on how to adjust the valves for top performance in your CN250 or CFMoto 250 engine!

Electrical Guides

- Electrical - How To Replace the Coil

A quick guide to changing the coil out on your buggy.

Dr Pulley Product Guides

- Yamaha Rhino 700 - How to change the springs for the Dr Pulley HiT301502 clutch.

A video guide to changing the clutch arm and pillow springs on a HiT301502 clutch used in the Yamaha Rhino 700.

- Honda SilverWing 400/600 - How to change the springs for the Dr Pulley HiT282001 clutch.

A video guide to changing the clutch arm and pillow springs on a HiT282001 clutch used in the Honda SilverWing 400 and 600cc bikes.

Buggy Parts NW Information Center is an evolving document and will be updated regularly as the BPNW crew continue their research. We learn new things every day, and we love to share!

Entire article copyright 2009 Buggy Parts NW

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