We still have the Seffle sitting in our workshop waiting for a nice boat for it to go in or someone to buy it!
I understand that these smaller engines were imported along with the 25hp versions by Willow Wren in about 1962. They are rated at 7/8hp at 1000rpm.
They are lovely little engines and benefit from the reliability of a reversing gearbox. I believe that they had several options from new for starting. Our one has a glow plug but some are blow lamp or even firework start. Obviously with a retractable pin in the flywheel. They have a rotary governor, water pump and lubricator and grease fed main bearings.
That's got me thinking. We best get it out and get it bopping - WATCH THIS SPACE!
Below are some photographs from several years ago and I appreciate they aren't very good, but it gives you the general idea.