Max Torque will build a clutch for you. You need to email Jim Donovan (owner of Max Torque) for a price. Expect to pay $200-300 in advance for the clutch. You will also need the following information.
Engine: West Bend 820
Application: Minibike
Type of shoe: Dry shoe
Output shaft thread size: (example not correct: RH Thread 3/8"-24)
Configuration: Outboard or Inboard (where you want the teeth)
Output shaft: (example not correct: Tapered shaft/Straight shaft etc.)
Engagement: (example not correct: 3000 rpm)
Chain size: 35 chain
Number of teeth: (example not correct: 10 teeth)
Bushing type: Bronze bushing type
Keyway and keyway size: (example not correct: With a keyway.
Jim’s email:
jim@maxtorque.com