RJSS, I know this thread is getting old but do you have any pics? We just got a CL55 barn find that hasnt run in about a year. Got it running buut the engine is the weak link. Did you want to sell the old engine you have? The parts may come in handy for us later on.
Sorry about that folks but I haven't had internet and just now got back online!
As for the old motor, no, it went to a guy in TN who I got the Yanmar from. I would actually suggest using a different engine since parts are really hard to find and if you do find them they are really expensive! like $300 for a USED camshaft!! I got the Yanmar for $1100 and traded the old motor, I also picked it up so I saved shipping too. Worked out well since my father actually lives 20 miles from where I got the thing,
The changes are not too major but I suggest using mid exit exhaust manifold and not a rear exit! It cost $100 to have a machine shop drill and tap the flywheel to match the coupler on the machine. The throttle needs replaced or set up to work with the Yanmar linkage and the fuel shutoff solenoid is a PIA! I finally rigged a manual rod up and use that instead.
Pictures....well I am actually going to be able to get them now that I have a better connection.
RJS