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OS Motors Needle #4BK/#2K (OS Motors OSMG7040 | OSMG7040)
OS Motors Needle #4BK/#2K

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Model: OS Motors OSMG7040
Dist. #: OSMG7040   SKU: OSMG7040

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Price:  $14.49

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Updated on Sep 29, 2025 08:10:03 AM

Needle #4BK/#2K...
The needle valve is utilized to change the fuel/air mixture going into the carb.
This consists of the needle, an o-ring (OSMG7388) and the set screw (OSMG8852).
To change: turn clockwise to lean the mixture
counter clockwise to richen the mixture
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