What causes Two-stroke engine seizure from neglect on the Bsa Bantam 350?

Kick it over, listen for grinding or tight rotation Estimated fix cost: $150-$400

What causes Gearbox oil leaks and worn seals on the Bsa Bantam 350?

Check primary chaincase and gearbox for oil weeping Estimated fix cost: $50-$150

Test spark strength, check points and condenser condition Estimated fix cost: $80-$250

Inspect tank interior for rust flakes or pinhole leaks Estimated fix cost: $60-$200

Known issues to inspect before buying a used Bsa Bantam 350. What to check and how much repairs cost.

SERIOUS

Kick it over, listen for grinding or tight rotation

Fix cost: $150-$400

MODERATE

Check primary chaincase and gearbox for oil weeping

Fix cost: $50-$150

SERIOUS

Test spark strength, check points and condenser condition

Fix cost: $80-$250

MODERATE

Inspect tank interior for rust flakes or pinhole leaks

Fix cost: $60-$200

☐Confirm engine turns freely by hand

☐Check for strong consistent spark

☐Inspect frame for cracks or repairs

☐Verify correct oil mix ratio used

Fragile but charming, needs attentive regular maintenance