Sorry Valient! I've been reading through your posts & I caught your gallery photos. You've put quite a lot of love & energy into your d50, I'm really impressed. Forgive me, I am a rookie here, so I plan on using this thread as a reference guide & your work as inspiration to revive & resurrect my injured steed. I believe that I may have a cylinder head issue as well, as all of my problems began back when my radiator sprung a leak, so disassembly if the head is looming. Thanks for the documentation here, & glad to see your d50 is thriving!!