- Joined
- Oct 1, 2018
- Messages
- 385

Several months back, I ordered a set of Mikuni VM carb adapters from VOC Spares. Internally, the adapters were only partially machined and were left as cast for about 35% of the interior. This left ledges and excess material that had to be removed. Well, okay, not too much involved there.
The issue that came up during fitting yesterday is that the front carb is fouled by the rear head to the point the carb cannot be installed; the interference is about a quarter inch. The designer must have measured for adequate clearance prior to having these items cast.
Since my front head is a very early component which lacks the vertical ribs that were cast into the later heads, I am wondering if the intake port was moved in the later casting? Anyone have any similar experience?
~998cc
The issue that came up during fitting yesterday is that the front carb is fouled by the rear head to the point the carb cannot be installed; the interference is about a quarter inch. The designer must have measured for adequate clearance prior to having these items cast.
Since my front head is a very early component which lacks the vertical ribs that were cast into the later heads, I am wondering if the intake port was moved in the later casting? Anyone have any similar experience?
~998cc