Garygin
Regular Contributor
I found a vacuum diaphragm that I modified to use in replacement of the original one on a Honda 225. The original is not available unless you purchase the intake manifold cover to the tune of $700.00 plus which is total bs. The one I bought is 2-47154 available from NAPA auto parts. The one used on the Honda 225 is an exact match for a Acura legend . I believe the correct part number is 17129 pt 2000. But they are also discontinued. It was a PITA to modify, but to me it was well worth the time . I hope this helps anyone who is having the same problems.