How to Change Brake Pads on a 1995 Yamaha PW50 Dirt Bike
Shop parts for a 1995 Yamaha PW50 Dirt Bike.Brake system basics for the 1995 Yamaha PW50
Understanding the components you’ll be working on makes the job faster and safer. A modern dirt bike braking system – and for the purposes of this guide the 1995 Yamaha PW50 as a youth dirt bike – typically consists of a brake lever or pedal, a master cylinder, hydraulic brake line, brake caliper, brake pads, and a brake rotor. Hydraulic pressure generated at the lever or pedal pushes the pad faces against the rotor so the bike slows. Many dirt bikes use hydraulic disc brakes; this is the setup we describe so you have clear, practical steps for a caliper-and-rotor system common to motocross, trail, enduro, dual-sport and youth machines.
When to replace brake pads – common symptoms
- Reduced braking power or longer stopping distances.
- Squealing, squeaking, or grinding noises when applying brakes.
- Excessive lever or pedal travel before the brakes bite.
- Visibly thin pad material – pad friction material less than a few millimeters.
- Heat discoloration, scoring, or warping on the rotor surface.
Inspect your 1995 Yamaha PW50 regularly, especially after muddy rides or long practice sessions. Early detection keeps braking performance predictable for young riders and prevents rotor damage.
Preparation & workspace
- Work on a flat, well-lit surface with a clean tray for small parts.
- Gather common tools: combination wrenches, pliers, a screwdriver, a punch or drift for pins, a C-clamp or piston-compressing tool, a torque wrench if available, and clean rags.
- New pads designed for a 1995 Yamaha PW50, a small container for old fasteners, and some isopropyl alcohol or brake cleaner.
- Wear gloves and eye protection.
Step-by-step – changing the brake pads
- Secure the bike on a stand so the wheel you’re working on clears the ground. Stabilize the PW50 so it won’t tip while you remove the wheel or manipulate the caliper.
- If the caliper design on your PW50 requires wheel removal for access, loosen and remove the axle, slide the wheel out, and set it aside. Some calipers allow pad changes without taking the wheel off; assess your bike before proceeding.
- Locate and remove the pad retaining pin or clip. This may be a spring clip, split pin, or removable bolt. Use pliers or a punch to drive the pin out in the correct direction.
- Slide the old pads out of the caliper. Note how any shims or springs are positioned so you can reinstall them the same way. Keep track of small parts.
- Inspect the rotor and caliper interior for embedded debris, heavy scoring, or deep grooves. Clean the caliper bracket area and rotor faces with brake cleaner or isopropyl alcohol; do not oil any braking surfaces.
- If the caliper pistons have pushed out, cover exposed pistons with a rag and carefully compress them back into the caliper with a C-clamp or piston tool. Place an old pad across the piston to protect the surface while compressing. Compress slowly until there’s room for the new pads.
- Install the new pads, including any shims or clips, making sure the pad friction faces the rotor. Slide them into the caliper so they seat evenly against the pistons.
- Reinstall the retaining pin or clip and ensure it’s secure. If the system uses a cotter or split-pin, bend and cut it appropriately so it won’t back out during use.
- Reinstall the wheel if you removed it. Torque axle hardware to the spec you normally use for the PW50 and confirm the wheel spins freely without dragging brake noise.
- Pump the brake lever or pedal several times to bring the pads into contact with the rotor and restore hydraulic pressure. You should feel a firm lever. If the lever feels spongey, pump more or check for fluid leaks.
- Check for leaks around the caliper and master cylinder, and ensure all fasteners are tight and cotters/clips are properly seated.
Inspection tips while the pads are out
- Rotor surface – look for scoring, heavy grooves, or heat discoloration. Light scoring is acceptable, but deep grooves may call for rotor service or replacement.
- Rotor thickness – if it looks noticeably thin compared to a new rotor, consider replacement. If you don’t have a micrometer, compare to the unused portion near the hub.
- Caliper condition – check for brake fluid leakage around piston seals or banjo fittings. Minor dirt is fine to clean; visible leaks need attention.
- Caliper sliding action – ensure guide pins or slide surfaces move freely after cleaning and light lubrication where appropriate (avoid getting grease on pads or rotor).
- Retaining hardware – replace any worn pins, clips, or springs to keep pads secure during riding.
Bedding in new pads
Bedding new pads is a simple but important step. Take the PW50 to a safe open area and perform several progressive stops from low speed to moderate speed – for example, 6 to 15 slow stops with progressively firmer braking. Allow a brief cool-down between heavy stops. This helps the pad material transfer a thin, even layer to the rotor so braking is consistent and noise is minimized.
Final checks before riding
- Confirm the brake lever or pedal is firm and returns properly.
- Verify no rubbing or unusual noises with the wheel spinning.
- Make a short, slow test ride to validate braking performance before normal use.
Closing notes
Routine pad inspection and replacement on your 1995 Yamaha PW50 keeps stopping power predictable for young riders and protects the rotor from damage. The process above is aimed at riders with basic mechanical skills using common garage tools. If you encounter persistent leaks, damaged calipers, or unclear brake feel after replacing pads, that’s a good time to seek more advanced mechanical help.
Related Shopping Categories
Shop Brake Pads for a 1995 Yamaha PW50 Dirt Bike.
Shop Brake Rotors for a 1995 Yamaha PW50 Dirt Bike.
Shop Brake Lines for a 1995 Yamaha PW50 Dirt Bike.
Shop Brake Bleeders for a 1995 Yamaha PW50 Dirt Bike.
Shop Brake Tools for a 1995 Yamaha PW50 Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
