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General overview

Some general overview of some handy details for each type.

This was list was constructed using the original instruction manuals:

  • Instruction manual 1939 for Tiger 100, 80 and 70, Speed Twin, 6S, 5H, 5S, 3H, 3S, 3SC, 2H and 2HC
  • Instruction manual for 3SW model framenumbers TL-18101 to TL-30050
  • Instruction manual for 5SW model framenumbers TL-18330 to TL-20833
  • Drivers handbook for 3SW and 5SW
  • Motor cycle replacement parts 1937, 1938, 1939 models

We did notice some differences between the manuals, f.i. the fuel tank capacity for the 5SW. Both 3 and 3 1/8 gallon are mentioned. One of the biggest differences is the “exhaust closes ATC” difference between a 3S and 3SW. One speaks of 36° while the other of 29°.

 3S3SW5S5SW3HW
Wheel base52 1/2″52 1/2″52 1/2″52 1/2″ 
Overall lenght82″82″82″82″ 
Overall width28 1/2″28 1/2″28 1/2″28 1/2″ 
Weight fully Equipped316 lbs316 lbs322 lbs322 lbs 
Engines     
Bore / stroke70-89mm70-89mm84-89mm84-89mm70-89mm
Capacity343cc343cc493cc493cc343cc
Compession ratio5,3:15,3:15,6:15,6:16,7:1
BHP@ RPM10@480010@480015@480015@480017@5200
Valve timing:     
Inlet opens BTC19°.12″ or 19°19°19° 
Inlet closes ABC60°.72″ or 60°60°60° 
Exhaust opens BBC67°.88″ or 67°67°67° 
Exhaust closes ATC36°.27″or 29°29°29° 
Tappet clearance:     
inlet.004″.004″.004″.004″nil
exhaust.007″.007″.007″.007″nil
Ingition, fully advanced5/16″5/16″5/16″5/16″3/8″
Contact breaker gap.012″.012″.012″.012″ 
Spark plug gap.015″-.018″.015″-.018″.015″-.018″.015″-.018″ 
Carburetter     
Complete body275 (75/145M)275 (75/145M)275 (75/145M)275 (75/145M)276
Float chamber7/8″7/8″7/8″7/8″ 
Jet block5/0585/0585/0585/058 
Trottle valve5/45/45/45/46/4
Main jet120120120120150
Needle jet107107107107 
Needle5/065 (middle slot)5/065 (middle slot)5/065 (middle slot)5/065 (middle slot) 
Drive chain     
Engine sprocket18 teeth18 teeth20 teeth20 teeth19 teeth
Rear wheel sprocket46 teeth46 teeh46 teeth46 teeth46 teeth
Tyres front/rear26″x3.25″26″x3.25″26″x3.25″26″x3.25″26″x3.25″
Liquids     
Oil tank3/4 gallon3/4 gallon3/4 gallon3/4 gallon3/4 gallon
Petrol tank3 gallon3 1/8 gallon3 gallon3 or 3 1/8 gallon3 gallon