PreRide Checklist for a 1987 Yamaha YSR50 Motorcycle
Shop parts for a 1987 Yamaha YSR50 Motorcycle.Introduction
Every ride begins long before you twist the throttle. A focused pre-ride inspection protects you and preserves the character of your 1987 Yamaha YSR50 Motorcycle. This compact two-stroke pocketbike demands attention to small details that have an outsized effect on safety and performance. The checklist below is tailored to the YSR50's light frame, simple drivetrain, and street-track crossover use.
Quick 60-Second Pre-Ride Checklist for the motorcycle listed in PreRide Checklist for a 1987 Yamaha YSR50 Motorcycle
- Visual tire check – inflation and obvious damage.
- Brake lever feel – firm, not spongy.
- Chain slack & quick lube spot check.
- Fuel level & no leaks from the petcock or lines.
- Lights working – headlight, tail/brake, and indicators.
- Throttle snaps back cleanly; no sticking.
- Kickstand up and secure; mirrors positioned.
Tires and Wheels
The 1987 Yamaha YSR50 runs small-diameter wheels and a lightweight tire profile, so a quick visual and pinch test reveal most problems. Check both front and rear for even tread wear and small cuts or embedded debris. Because this model is used for short, spirited runs, maintain tire pressure on the firmer side of the recommended range to preserve handling responsiveness.
Inspect the wheel rims for dents or bends. On the YSR50, a slight wobble is felt immediately at low speeds, so spin each wheel and look for lateral runout. Correct balance and roundness are crucial; the bike's small mass exaggerates the effect of any irregularity.
Brakes
The YSR50's braking is compact but critical. Squeeze the front lever and press the rear pedal to confirm solid resistance and predictable engagement. A soft lever travel can indicate air in the line or low fluid – top off with appropriate DOT fluid if you note softness.
Visually inspect pad thickness at the caliper; any pad under 2-3 mm on a small-displacement machine should be replaced. Look for fluid leaks around master cylinders, calipers, and hose fittings. Because stops may be frequent on urban rides, ensure the brake light activates when the rear pedal is depressed.
Chain / Drivetrain
The 1987 Yamaha YSR50 uses a simple chain drive that responds well to routine attention. Check chain tension with the bike on the sidestand or center of gravity – aim for the modest slack range appropriate to the YSR50's short swingarm. Excessive slack causes jerky acceleration and rapid wear; overly tight chains stress bearings.
Lubricate the chain if it looks dry, applying a light spray of chain lube while rotating the rear wheel. Inspect sprocket teeth for hooked or worn profiles. Replace worn sprockets and chain as a matched set to maintain smooth power delivery on this peaky little two-stroke.
Fluids
Fluids on the YSR50 are minimal but indispensable. Check engine oil level if the model is oil-injected or confirm premix fuel volume if the engine uses crankcase oil mixing. Ensure the fuel petcock seals and lines are dry – tiny leaks can drip onto hot engine cases and create hazards.
Inspect brake fluid reservoirs for level and clarity. Replace dark or discolored fluid promptly. The YSR50 does not use coolant if air-cooled, but if your specific machine has a modified cooling setup, verify coolant levels and hose condition. A quick sniff can detect fuel or oil smells that indicate leaks needing attention.
Controls and Lights
Controls on a small machine must operate crisply. Twist the throttle full and release; it should snap closed and return to idle without sticking. Test the clutch pull for consistent engagement and check cable routing for chafing or binding. Lubricate cables where movement feels rough.
Cycle the headlight, tail/brake light, and turn signals. The YSR50 is often ridden at dusk or on short urban runs – a non-functioning brake light or indicator is a major risk. Replace burnt bulbs and secure any loose connectors. Adjust mirrors so you get a clear rear view without moving your head excessively.
Suspension and General Condition
Give the suspension a quick push test. The front forks and rear shock should compress smoothly and return without harshness. Inspect fork seals for oil weeping; any sign of an oil film on the fork stanchions means attention is needed to avoid poor damping and traction loss.
Walk around the YSR50 and look for loose fasteners, cracked plastics, or missing footpeg rubber. Small fasteners on this vintage can back out from vibration; tighten visibly loose bolts and fittings. Check for rust at pivot points and lubricate where stiffness appears.
Final Safety Check Before Riding
- Confirm the sidestand clears the ground and retracts fully when up.
- Re-check mirrors and seating position for comfort and visibility.
- Verify helmet, gloves, and protective layers are secured.
- Listen for unusual noises during a brief idle and slow-roll test in a safe area.
On the 1987 Yamaha YSR50 Motorcycle, that last-minute walkaround often catches what a quick in-place check misses.
Conclusion
Make the PreRide Checklist for a 1987 Yamaha YSR50 Motorcycle a consistent habit. A quick, focused inspection prevents roadside issues and preserves the bike's lightweight handling and lively two-stroke character. Spend a minute on the essentials each time and you'll enjoy safer, more reliable rides without sacrificing the fun this vintage pocketbike delivers.
Related Shopping Categories
Shop Tires for a 1987 Yamaha YSR50 Motorcycle.
Shop Brakes for a 1987 Yamaha YSR50 Motorcycle.
Shop Chain and Sprockets for a 1987 Yamaha YSR50 Motorcycle.
Shop Oil and Fluids for a 1987 Yamaha YSR50 Motorcycle.
Shop Suspension Parts for a 1987 Yamaha YSR50 Motorcycle.
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.
