Since the old pages - I have not done anything much new on the engine. Now I have run more than 1200 miles cruising - I have gotten to know it a little better. I still don't understand it - ok I know the tech stuff and most of its basic internals - ( short of how the governor actually works ! ) - but these engines can be fickle at times.
So I have brought together the recent pages on the engine. They may be of use to some.
Shop Manuals - these are the real Workshop manuals - not the service manuals.
The full Workshop Manual is now available from here for free - 433 pages !
It's free to download but a little messy site with many 'false' download links - so I have put a copy on here.
Just click on the link and choose 'save ' - they are pdf's.
I have added notes to the index page to give the page that each section starts.
The older manual below - is clearer to understand - although the photos are not as good as the later version diagrams ?
There are some mistakes in the later manual ( I have that as a copy I bought from Yanmar ) - and some sections are far from clear. The earlier version had a compete section devoted to single cylinder models. The later bunched all three together.
Put text in individual divs