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Lower drive pulley OD diameter 240mm

Dual pulley on engines output shaft
for cutter belt OD 107mm
for drive belt OD 67mm

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Dual pulley on engines output shaft
Belt centres 38mm
Total length across 65mm

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This handle when pulled down, pulls the engine back tightening the cutter belt.

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SP drive handle & linkages.
Handle moves tyre treads to meet the drive dogs, which are always spinning when the engine is running.
Mine is missing the latch up on the handles.


Happy is he who penetrates the mystery of things.