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Briggs & Stratton
TORX Head Butterfly Screw for Raptor Carburetors - Superseded by 691437
TORX Head Butterfly Screw for Raptor Carburetors - Superseded by 691437
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Secure your carburetor's butterfly valve with this updated TORX head screw (SKU 555258), now superseded by 691437 for improved durability in demanding races. The shift from slotted to TORX design means better torque application, reducing the risk of stripping during adjustments.
Essential for maintaining precise air-fuel mixture, this screw helps deliver consistent power surges, letting you accelerate out of turns with confidence. Kart teams rely on it to avoid mid-race tweaks, keeping focus on strategy over hardware. Remember, no returns apply due to its specialized nature—order with certainty for your next build.
Frequently Asked Questions
Q: Why has this screw been superseded by 691437?
A: The transition to the 691437 TORX head design provides superior torque application compared to the original slotted screw. This upgrade significantly reduces the risk of stripping the head during installation or carburetor adjustments.
Q: Is this screw compatible with all Raptor carburetors?
A: Yes, this hardware is designed specifically for Raptor carburetors. It is the updated standard for securing the butterfly valve to ensure a precise air-fuel mixture.
Q: Do I need special tools to install this TORX head screw?
A: Yes, you will need a compatible TORX driver bit. Using the correct size driver is essential to prevent cam-out and ensure the screw is seated securely without damaging the fastener.
Q: Can I return this item if I ordered the wrong part?
A: Due to the specialized nature of carburetor hardware and the precision required for racing applications, this item is non-returnable. Please verify your carburetor model before finalizing your order.
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