Activa het low power at high speed. Problem solve by piston and valve replacement

Having low power at high speed on your TVS Activa? In this step-by-step scooter repair video we diagnose and fix the problem by piston and valve replacement. Perfect for DIY mechanics and professional technicians alike, this guide covers symptoms, testing, teardown, replacement, and post-service checks to restore engine performance and compression.

What you’ll see in the video:
Quick symptom overview: loss of power, poor acceleration, black smoke, and rough top-end running
Diagnostic tests: compression test, leak-down test, spark plug inspection, carburetor/fuel system check
Disassembly: removing head, piston inspection, valve seat and guide checks
Replacement: piston replacement, valve grinding/seating or new valve install, gasket and ring fitment
Reassembly: torque specs, valve clearance, timing, and break-in procedure
Final road test: restored top speed, smooth acceleration, and improved fuel economy

Why this matters:
Low compression and worn valves are common causes of low power at high speed on scooters like the TVS Activa
Correct piston and valve replacement can save you money versus a full engine overhaul
Learn best practices for scooter maintenance and engine tune-up to prevent future problems

Tools & parts featured:
Compression gauge, micrometer, feeler gauges
New piston kit, piston rings, valves, valve seals, head gasket
Basic hand tools, torque wrench, valve grinding tools

Useful keywords & tags in this guide: TVS Activa, Activa low power, scooter repair, piston replacement, valve replacement, compression test, two-wheeler maintenance, DIY mechanic, engine fix, scooter tune-up

If this video helped you, please like, comment with your scooter model and symptoms, and subscribe for more #TVSActiva #Activa #ScooterRepair #PistonReplacement #ValveReplacement #DIYMechanic #ScooterMaintenance #EngineFix #LowPower #CompressionTest #TwoWheeler #MechanicTips