European Motorcycles

Today in Motorcycle History

Troubleshooting Motorcycle Problems

General Resources

Troubleshooting Twostrokes

1) Engine won't start, or difficult to start

  • Check fuel (quantity, condition, type)
  • Check spark
  • Check compression
  • Two-stroke compression

    1. In most two strokes 120 + (PSI) is good, tho there are some weird motors that run less.

    2. 6.5 - 7.5 to one is pretty typical swept compression (only counting above the exhaust port). 8.5 - 10.5 would be typical uncorrected ratios.

    More information: arboristsite.com

    Norton Technical Tips
    OHV Valves and Guides
    Cylinder Head Joint
    Flat Tank Gearbox
    AMC Clutch
    Alloy Head Threads
    British Threads
    Petrol Tank Painting
    Powder Coating
    Inter Cam Box Repairs
    Rigid and Garden Gate Frame Breakages
    Girder Fork Repairs
    Wheel Building
    Norton OHC Manual
    Norton Numbering System