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Do you have a question about the Bonneville 750 and is the answer not in the manual?

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L. Ross
May 11, 2025

1973 Triumph upgraded 750cc upgraded parts & sevices for today's reliability

1 comments:
Mr. Anderson
May 20, 2025

To enhance the reliability of a 1973 Triumph Bonneville 750, the following upgraded parts and services are recommended:

1. Electronic Ignition System: Replace the original points ignition with an electronic ignition system (e.g., Boyer or Pazon) for more reliable starting and consistent timing.

2. Upgraded Charging System: Install a modern alternator and solid-state voltage regulator/rectifier (e.g., Podtronics or Tympanium) to improve charging efficiency and reduce electrical issues.

3. Carburetor Upgrade or Rebuild: Rebuild or replace the original Amal carburetors with modern versions or Mikuni carbs for better fuel delivery and easier tuning.

4. Oil Filter Conversion Kit: Add an external oil filter system to improve oil filtration and engine longevity.

5. Improved Wiring Harness: Replace the original wiring harness with a new, high-quality one to prevent electrical failures.

6. Stainless Steel Fasteners: Use stainless steel nuts, bolts, and screws to reduce corrosion and maintenance.

7. Modern Tires and Tubes: Install modern tires for improved handling and safety.

8. Front Fork Rebuild: Rebuild the front forks with new seals and possibly progressive springs for better suspension performance.

9. Brake System Upgrade: Overhaul or upgrade the front disc brake and rear drum brake components for improved stopping power.

10. Upgraded Coil and Plug Wires: Use high-quality ignition coils and plug wires for stronger spark and reliability.

11. Primary Chain and Tensioner: Replace or inspect the primary chain and tensioner to prevent drivetrain issues.

12. Regular Valve Adjustment and Timing Checks: Perform routine maintenance for proper engine performance.

These upgrades help improve reliability while maintaining the bike’s classic character.

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Tiger 750

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