| Diagram | Fig. 29 — CARBURETTERS (Plate 22) · ref 5 |
| Subsystem | fuel |
| Listed in parts books | 1969–1970, 1972 |
Throttle slide (number 3½ cut-away)
Amal carburetor throttle slide with a 3½ cutaway profile, controls part-throttle air flow.
This is the throttle slide for an Amal carburetor, cut with the 3½ cutaway. The slide rides up and down in the carb body and its cutaway shape controls how much air gets past it as the throttle opens, which shapes the carburetor's response off idle and through the early part of the throttle's travel. Amal offered slides in a range of cutaway sizes and 3½ is one of the common values you'll run across in these carbs.
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In our records this part shows up across several carburetor and carburetor-and-air-cleaner figures, so it's a standard service item rather than something tied to one odd application. If you're rebuilding a Concentric or similar Amal carb and the slide is worn or scored, or if you're chasing a flat spot in the throttle response, this is the part to look at.
The catalog doesn't pin this to a specific bike model or year beyond the general span it turns up in, so if you're matching it against a carb body, bring the carb in or have the numbers off it before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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