CA250 Starter Clutch Assy

Brand: Mortch Motor
Product Code: MICA250-5015

Product Viewed: 125

Availability: Pre-Order

Weight: 0.54kg

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CA250 Starter Clutch Assembly

🔧 Starter Clutch · One-Way Clutch · Overrunning Clutch

For Honda CA250 253FMM 250/300cc Twin 4-Stroke Engines · High Quality Replacement

📋 Product Overview

This is a high-quality starter clutch assembly for all Honda CA250 253FMM 250/300cc Twin 4-stroke engines, also known as a one-way clutch or overrunning clutch. The starter clutch is a critical component of the starting system, responsible for transmitting torque from the starter motor to the crankshaft during engine startup, and automatically disengaging once the engine starts to prevent the crankshaft from overdriving the starter motor.

Manufactured from quality materials with precise dimensions, this starter clutch is an ideal replacement when the original unit wears out or fails.

✨ Key Functions: Transmits starter torque · One-way power transmission · Automatic disengagement · Protects starter motor

📐 Specifications

Outer Diameter (gear)

97mm

齿轮外径

Teeth on Gear

38 teeth

齿轮齿数

Engine Application

Honda CA250 / 253FMM

Displacement

250cc / 300cc

Engine Type

Twin 4-Stroke

⚙️ Operating Principle & Diagnosis

🔄 How It Works

The starter clutch contains rollers and springs that allow torque transmission in only one direction. During starting, the rollers wedge tight, transmitting torque from the starter motor to the crankshaft. Once the engine starts and crankshaft speed exceeds starter speed, the rollers release, disengaging the clutch and preventing the crankshaft from overdriving the starter motor.

🔧 Failure Diagnosis

Simple Test: With the starter motor removed, you should be able to spin the starter clutch gear freely in one direction. If the gear spins freely (no resistance), the starter clutch is working properly. If the gear is locked or has abnormal resistance when spinning, the starter clutch is damaged and needs replacement.

Failure Symptoms: When starting, the starter motor spins but the engine doesn't turn over, accompanied by whining or clicking sounds. This indicates the starter clutch is slipping and unable to transmit torque.

⚠️ Important Note: This part will wear from over-starting when there are hard starting problems. With starter removed and you can spin the gear freely (meaning it's not engaging), it's not working and needs replacing.

🛵 Compatible Models

This starter clutch assembly fits the following engines and vehicles:

Honda CA250 Engine (253FMM)
Honda 250cc Twin 4-Stroke Engines
Honda 300cc Twin 4-Stroke Engines
Other brands using the same starter clutch specifications

Common models include:

Honda CA250 Rebel / Rebel 250
Honda CMX250 Rebel
Honda CB250 Nighthawk
Various cruiser and street bikes using CA250 engines
Some ATVs and trikes using the same engine

📌 Compatibility Note: This product is designed for Honda CA250 253FMM 250/300cc Twin 4-stroke engines. Before purchasing, please verify your engine model or check your original starter clutch specifications (gear outer diameter 97mm, 38 teeth).

✨ Product Features

Quality Materials: Made from high-strength steel with heat-treated rollers and springs for excellent wear resistance and long life.
Precise Dimensions: Manufactured to OEM specifications with 97mm gear outer diameter and 38 teeth for perfect fit.
One-Way Operation: Precise one-way design ensures reliable torque transmission during starting and complete disengagement after start.
Direct Replacement: Perfect substitute for worn or failed original starter clutch, no modifications needed.
Solves Starting Issues: Replacing a worn starter clutch effectively resolves starter motor spinning without engaging the engine.

🔧 Installation Tip

1. Replacing the starter clutch requires removing engine covers and has internal engine access. Professional installation is recommended.
2. Clean all mounting surfaces before installation to ensure no debris or oil residue.
3. Pay attention to the installation direction of the starter clutch to ensure proper one-way operation.
4. Tighten mounting bolts to the specified torque.
5. After installation, manually rotate the starter clutch gear to check for smooth operation in one direction and locking in the opposite direction.
6. After reinstalling the starter motor, test starting function to confirm normal operation.

⚠️ Important Notice: This is a CA250 starter clutch assembly for Honda CA250 253FMM 250/300cc Twin 4-stroke engines. Specifications: gear outer diameter 97mm, 38 teeth. The starter clutch is an internal engine component; professional installation is recommended. Images are for reference only. The actual product may vary.

🔧 Compatibility Notice

Please verify that this part fits your specific vehicle model and year. Many vehicles share similar names but use different components depending on year or market region.
We strongly recommend cross-checking with your vehicle's owner's manual or contacting us for confirmation before placing your order.

📄 Product Disclaimer

Product images, measurements, and descriptions are for reference only. Slight variations in color or appearance may occur due to manufacturing batches or photography lighting—functional specifications remain identical to the ordered part.
Professional installation is mandatory. Mortch Motor assumes no liability for damages, injuries, or losses resulting from improper installation, misuse, unauthorized modification, or abnormal operation.

💰 Import Duties & Taxes

All listed prices EXCLUDE shipping costs, import duties, taxes, and customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are solely the buyer's responsibility.
In case of return due to unpaid duties/taxes or refusal to clear customs, the buyer shall bear the original shipping cost, return shipping fees, and any associated administrative charges deducted from the refund.

📌 Order Confirmation: By completing your purchase, you acknowledge that you have read, understood, and agreed to all terms above. For any questions, please contact our support team prior to ordering.