Buller Built 1" Turbo Stepped Clutch Key - 2" OAL - Briggs & Clone Racing

$13.89 USD
$13.89 USD
Buller Built 1" Turbo Stepped Clutch Key - 2" OAL - Briggs & Clone Racing

Buller Built 1" Turbo Stepped Clutch Key - 2" OAL - Briggs & Clone Racing

$13.89 USD
$13.89 USD

Locking down your drivetrain with precision-machined go kart components is the only way to ensure 100% power transfer from the crankshaft to the rear wheels. The Buller Built 1" Turbo Stepped Clutch Key (OEM Part #098-611) is engineered specifically for Bully Star and Turbo configurations, eliminating the destructive wobble that saps horsepower and destroys clutch baskets during high-RPM acceleration. When you are fighting for tenths of a second on the track, a sloppy clutch fitment translates directly to lost exit speed and inconsistent lap times.

Engineered for Maximum Drivetrain Reliability

Just as you trust your kart racing helmets for impact safety and your go kart pedals for threshold braking, your transmission assembly demands uncompromising structural integrity. This stepped key slots perfectly into your 1-inch shaft, locking the clutch star firmly in place. Minor misalignments in the heat of a race don't just cost you time—they cause catastrophic vibrations that can shatter chain guards and end your weekend early. By providing a rock-solid mechanical bind, this key allows your engine's peak torque to flow seamlessly through the drive hub and straight to the asphalt.

The Professional Racer's Choice

Built to endure the brutal harmonic stresses of competitive karting, this OEM replacement integrates flawlessly with your existing Bully Turbo parts for a bulletproof setup. Whether you are fine-tuning an lo206 carburetor kit in the pits or doing a complete engine overhaul, swapping in a fresh stepped key is a low-cost, high-yield safeguard against premature clutch failure. Keep SKU BCKSTAR stocked in your toolbox to ensure you never miss a heat race due to a sheared keyway.

Technical Specifications & Features

  • OEM Precision Fit: Genuine Buller Built Part #098-611 ensures exact tolerances for 1" Turbo and Star clutches.
  • Stepped Design: Custom-machined profile securely locks the clutch star, preventing lateral movement and vibration.
  • Optimized Dimensions: Features a 2-inch Overall Length (OAL) tailored specifically for 1-inch engine shafts.
  • Maximum Power Transfer: Eliminates clutch wobble to ensure 100% of your horsepower reaches the rear wheels.
  • Heavy-Duty Construction: Forged to withstand the extreme RPMs and thermal cycles of competitive sprint racing.
  • Universal Compatibility: Ideal for high-output Briggs, Clone, and Honda racing engine platforms.
  • Preventative Maintenance: Protects expensive clutch baskets and drive hubs from keyway wallowing.

Frequently Asked Questions

Q: Why is a stepped clutch key necessary for my Bully Turbo clutch?

A: A stepped key is precision-machined to lock the clutch star firmly onto the crankshaft. This eliminates the "wobble" often found with standard keys, which prevents keyway wallowing and ensures 100% power transfer from your engine to the rear wheels.

Q: How do I know if I need to replace my clutch key?

A: You should inspect your key whenever you perform clutch maintenance. If you notice any signs of shearing, deformation, or if the clutch star feels loose on the shaft, replace the key immediately to prevent catastrophic vibration damage to your clutch basket and drive hub.

Q: Is this key compatible with all karting engines?

A: This key is specifically engineered for 1-inch crankshafts used in high-output Briggs, Clone, and Honda racing platforms equipped with Bully Turbo or Star clutch configurations.

Q: Can I reuse a clutch key after removing the clutch?

A: While it is possible, it is highly recommended to keep a fresh supply of keys in your toolbox. Because keys are a low-cost insurance policy against clutch failure, swapping in a new one during an engine overhaul is the best way to ensure a perfect, tight fit every time.

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