Description
Carburettor Diaphragm (Rotax Part No. 861116)
Description
A precision-engineered diaphragm designed for Bing 64/32 carburettors on Rotax 912, 912S, 912ULS, and 914 engines. This crucial component ensures airtight operation of the carburettor valve, maintaining correct fuel–air control under varying engine conditions.
Key Features
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Genuine OEM diaphragm for Rotax/Bing carburettors
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Compatible with Bing 64 and 64/32 models, widely used on 912/914 engine families
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Made from durable material to form a reliable seal and consistent spring-back action
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Also fits other 4‑stroke engine carburettors, such as Stromberg Zenith CD3 series Seals effectively to preserve carburettor vacuum and prevent mixture disturbances
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Enhances throttle response and cold-start behaviour
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Designed for repeatable performance and longevity under service conditions
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Essential replacement item in carburettor overhaul kits
Technical & Service Notes
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Listed in Rotax Illustrated Parts Catalog under Bing carburettor components
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Typical diameter around 40 mm for consistent fit
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OEM part number: 861116
