Triumph 650 4-Speed Gear Interchange: Meriden vs BSA Production Finding replacement gears for a Triumph 650 unit 4-speed gearbox is never straightforward. Only a handful of gears are still produced n … read more

Credit – Brightspark Magnetos Ltd Click Here to view KF Lucas parts manual Click Here to view Lucas face cam (magdyno) parts manual DIY Magneto Maintenance and Troubleshooting A fair amount of … read more

Triumph Tappet Blocks and Pushrod Tubes — A Neophyte's Complete Guide by Year The Triumph twin cylinder engine began life in the 1930s as a 500cc and was eventually expanded to 750cc, but the de … read more

Lucas type ammeter installation instructions Lucas offered a number of different type ammeters over the years. This deals with the last style fitted to many British models before they were discontinue … read more

Understanding 3 phase alternators…. A three phase alternator is nothing more than single phase with 3 extra coils. Every alternator coil is slightly out of phase with the first.  Basically … read more

ALTERNATOR ROTOR GAP Importance of Checking Alternator Rotor Clearance Although not an everyday occurrence, having the rotor rubbing on the stator can lead to very expensive problems. Very few of us … read more