Motorcycle Glossary
Starter clutch
In Turkish: Marş rublesi
In short
The starter clutch is a one-way clutch that passes the starter motor's drive to the crankshaft and freewheels once the engine fires.
The starter clutch usually sits behind the flywheel and contains rollers or sprags that lock in one direction only. Once the engine runs, the crank spins faster than the starter gear and the clutch freewheels, protecting the starter motor.
Symptoms of a problem
- The starter spins freely (whirring) but the engine does not turn
- A metallic clatter or slipping noise when starting
- Rattling from the flywheel side while the engine is running
Also known as (including Turkish names)
- Marş kavraması
- Tek yönlü rulman
- Sprag clutch
- Marş rulmanı
Related products
Starter Clutches
Last updated: October 9, 2026
