Technical Support, Tuning tips & Tricks
LIST OF STANDARD BORE SIZES
This size list is for reference only. Cylinders are bored based off the actual piston measurement using a micrometer and... read more
Technical Support
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ROLLER CHAIN
Chain drive is the most common power transmission device used in machines of industry and transportation. Without it we would... read more
Thread Pitch and Screw Types
When it comes to hardware there are a number of different fasteners on a British Motorcycle. Being able to determine... read more
Electrical Tech, Manuals, Technical Support
LUCAS MAGNETO TROUBLESHOOTING
Lucas Magneto Troubleshooting Credit – Brightspark Magnetos Ltd Click Here to view KF Lucas parts manual Click Here to view... read more
Installation Guides, Technical Support
Ignition switch lock replacement
PDF Download of Ignition lock replacement read more
DRILLING SHEET METAL
How do you easily drill sheet metal? Many of the sheet metal products we sell are supplied without holes. Where... read more
TRIUMPH EARLY 5 SPEED GEARBOX
There have been several iterations of the Triumph 5-Speed transmission. Not all 5-Speeds gear sets are the same. The early... read more
STAINLESS STEEL TIPS
Stainless steel love it or hate it? We are starting to encounter it quite a bit in the vintage motorcycle... read more
SPANNER SIZES ACROSS FLATS
CLICK HERE TO DOWNLOAD AND PRINT CLICK HERE FOR WRENCH INTERCHANGE CHART Here is a helpful wall chart that gives... read more
Annealing Copper Gaskets
Annealing Copper Head Gaskets and Sealing Washers: Purchasing a new head gasket is not always necessary. In many cases the... read more
Electrical Tech, Installation Guides
Wiring Solid State Single Phase Regulators
Note: We recommend the use of either resistor type spark plugs or 5K Ohm resistor plug caps. Not using these... read more
Technical Support, Tuning tips & Tricks
WET SUMPING PROBLEMS
If you have owned a British motorcycle for any time you will be familiar with the term “wet sumping”. This... read more
Electrical Tech, Installation Guides
INSTALLING A KILL BUTTON ON ELECTRONIC IGNITION
How do I install a kill button on my electronic ignition? We get this question often so we decided to... read more
WHAT YEAR IS MY BIKE
Checking the engine and frame numbers should be the first step in taking on any bike project. This allows one... read more
Installation Guides, Manuals, Technical Support
Triumph Cub, which gears to use?
That dreadful moment when you’re about to slide your gear cluster into the housing after hours of assembly and it... read more
Motorcycle Oil and Clutch Friction
Motorcycle Oil and Clutch Friction: Q: What oil do you recommend for my primary chain case? A: We recommend using ... read more
Technical Support, Tuning tips & Tricks
TRIUMPH TIMING GEARS
We often get questions about Triumph cam gears and which marks to line up during engine assembly. To put it... read more
TRIUMPH 650 4 SPEED GEAR INTERCHANGE
Those whom have had to replace broke gears in a Triumph gear box know just how troubling it can be.... read more
Which Way Do I Install The Oil Seal?
We receive this question quite regularly: Which way do I install this oil seal? The above picture shows the cross... read more
Electrical Tech, Installation Guides, Technical Support
TRI-SPARK TWIN INSTALLATION
In Sept 2021 Tri-Spark introduced the Classic Twin-0006 which replaces the A and B types produced prior to 2022. *Make... read more
Electrical Tech, Installation Guides
Pazon Surefire Installation Guide
PAZON INSTRUCTIONS OTHER IGNITIONS Click on the part number to open: PA1-6 PA1 PA2 PA2-6 PAMT1-6 Fault Finding Smart Fire... read more
Technical Support, Tuning tips & Tricks
FREQUENTLY ASKED PISTON QUESTIONS
Frequently asked piston questions: What is the recommended cylinder to piston clearance? For cast aluminium pistons we recommend .0035 –... read more
Wiring Aftermarket 31563 Lighting Switch
The Lucas handle bar mounted horn button with headlamp dip was introduced to Triumph Pre-Unit in 1956. Previously the horn... read more
Installation Guides, Technical Support
Fitting Throttle Cables to Amal Concentric
Identifying Parts Amal carbs come with a wide variety of spares to make sure your bike goes together with no... read more
Installation Guides, Technical Support
Changing Triumph 1945-1974 drum brakes.
Installing Triumph rear brake shoes 1945-1974 drum brakes. Triumph rear brakes as used on most models from 1945 to 1974.... read more