| Also known as | S2112 |
| Diagram | Fig. 18 — MOTOR UNIT FITTINGS AND FOOTRESTS · ref 30 |
| Subsystem | frame |
| Listed in parts books | 1971, 1974, 1976–1980, 1983, 1985 |
Bolt Motor to frame centre bottom
Center bottom bolt securing the engine to the frame at the lower motor mount.
This is the center bottom bolt that ties the engine to the frame, listed in the catalog as bolt motor to frame centre bottom. It shows up in the parts book under the figure for motor unit fittings and footrests, and also under footrests and engine mountings, which places it right where the bottom of the engine cradle meets the frame down tubes.
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It also carries the older alias S2112, so if you're working from an earlier parts book and see that number, it's the same bolt. This one has been in the catalog across a long production run, from 1971 through 1985, and turns up in nine separate catalog entries, so it's a bolt that stuck around through a lot of frame and engine mounting changes over the years.
If you're pulling the motor for a rebuild or just chasing down mounting hardware, this is one to check for stretch or thread damage before you put it back in. Confirm fitment against your own frame and engine before ordering, since the catalog spans a wide range of years.
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