Bike Maintenance

 This page records my bike maintenance activities and records a few bits of useful data that I perpetually misplace...

This is a link to a shared Excel spreadsheet listing the maintenance tasks, the frequency with which they should be performed and the mileage at which I last performed them:

•  Square Four Maintenance Log

I’ll add the other bikes as I use them!

Maintenance Data

Square Four 

• Tyre pressures & sizes: 28 psi on the front, 350-19 and 36 psi on the rear, Avon Roadrider Mk2
• Engine Oil & capacity: SE rated 20W/50 (Halfords classic), 6 pints
• Gearbox Oil & capacity: Morris K400EP, 
• Fuel capacity: 4 gallons
• Points gap & ignition timing: 0.012", TDC fully retarded
• Valve Clearances: 0.001" inlet, 0.001" exhaust
• Negative earth
• Chains: 1/2" front, 72 pitches; 5/8" rear, 91 pitches
• Weight: 412 lbs

W/NG

• Tyre pressures & sizes: Dunlop K70
• Engine Oil & capacity: Morris SAE50, 4 pints
• Gearbox Oil & capacity: Morris K400 EP, 1 1/2 pints
• Fuel capacity: 2 1/2 gallons
• Points gap & ignition timing: 0.012", 1/2" BTDC fully advanced
• Valve Clearances: nil when cold, inlet and exhaust
• Negative earth
• Chains: 1/2" front, 80 pitches; 5/8" rear, 92 pitches 
• Weight: 354 lbs

Huntmaster

• Tyre pressures & sizes
• Oil & capacity: Morris SAE30 running in oil, 6 pints
• Gearbox Oil & capacity: Morris SAE 50 engine oil with Morris K400EP around the speedo drive 
• Fuel capacity: 4 1/2 gallons
• Points gap & ignition timing: 0.012", 3/8" BTDC fully advanced
• Valve Clearances: 0.010" inlet, 0.010" exhaust
• Negative earth
• Chains: 1/2" front, 73 or 74 pitches; 5/8" rear, 100 pitches 
• Weight: 410 lbs

Note that the engine is built to Cyclone specification.

Model A

• Tyre pressures & sizes
• Oil & capacity 
• Gearbox Oil & capacity
• Fuel capacity 
• Points gap & ignition timing: 0.012", TDC fully retarded
• Valve Clearances: 0.002" inlet, 0.004" exhaust 
• Negative earth 
• Chains: 
• Weight