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D&B 5.1 Twin

Bore 42 MM Stroke 30 MM
Carburetor Diaphragm pump type with accelerator pump by Walbro
Spark Plugs 14 MM BPM7A or 10 MM CM6 by NGK
Fuel Ratio 32 to 1 Recommended Klotz 308
Please Note: 10-7/8" dimension is for 14 mm plugs,
10-3/16" dimension is for 10 mm plugs

5.1 Twin - Front View


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