HONDA 28101-333-000 Starter Reduction Idler Gear Shaft

( Manufacturer Part Number: 28101-333-000 ), ( Part Type: Idler Starter Gear Shaft ), ( Country Of Origin: Japan ), ( Machine Type: Motorcycle ), ( Color: Silver ), ( Material: Steel ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front ), ( Unit Type: Unit ), ( Oe/oem Part Number: 28106-333-000, 28101-333-000 ), ( Universal Fitment: No )

Review HONDA Starter Reduction Idler Gear And Shaft fits CB350F 1972

The **Honda 28101-333-000 1972 CB350F Starter Reduction Idler Gear Shaft** is a meticulously crafted, high-performance component designed exclusively for the iconic 1972 Honda CB350F, a motorcycle renowned for its timeless engineering and enduring appeal among classic bike enthusiasts. This precision-machined starter reduction idler gear shaft serves as a critical link in the bike s ignition system, ensuring seamless engagement between the starter motor and the flywheel, which is essential for smooth, reliable cranking during startup. Crafted from durable, heat-treated steel, this gear shaft is engineered to withstand the rigorous demands of repeated use, resisting wear and deformation over time to maintain optimal performance. Its unique design incorporates a finely balanced idler gear, which reduces backlash and minimizes friction, thereby enhancing the efficiency of the starter mechanism and prolonging the lifespan of both the gear shaft and the associated components. For collectors, restorers, and riders seeking to preserve the authenticity and functionality of their 1972 CB350F, this OEM-quality part is an indispensable upgrade, offering a perfect blend of historical accuracy and modern reliability. Whether integrated into a meticulously restored bike or a carefully maintained classic, this starter reduction idler gear shaft ensures that the CB350F s legendary starting performance remains as sharp and dependable as the day it left the factory.

### **Pros and Cons of buying a Honda 28101-333-000 (1972 CB350F Starter Reduction Idler Gear Shaft)**

1. **Direct Fitment** This part is specifically designed for the 1972 Honda CB350F, ensuring compatibility without modifications. It will function as intended without requiring additional adjustments.

2. **Reliability** Honda parts, especially those from the classic era, are known for durability. The starter reduction gear assembly is a critical component, and a genuine or high-quality aftermarket replacement should perform reliably if installed correctly.

3. **Prevents Further Damage** If the original gear is worn or damaged, replacing it now can prevent secondary issues such as starter failure, clutch problems, or transmission damage. This is a cost-effective way to avoid more extensive repairs later.

4. **Easier Maintenance** Replacing a single worn component is simpler and less time-consuming than overhauling the entire starter or transmission. This makes it a practical choice for DIY mechanics or those without extensive motorcycle experience.

5. **Availability of Guides** Since the CB350F is a classic bike, there are numerous online resources, forums, and repair manuals (including Honda s own service manuals) that provide step-by-step instructions for replacement. This reduces the risk of installation errors.

6. **Cost-Effective Alternative** While not the cheapest part, replacing just the gear shaft is often more affordable than buying a complete starter assembly, especially if the rest of the starter is still functional.

7. **Improves Performance** A properly functioning starter reduction gear ensures smooth engagement between the starter and the flywheel, which can improve the bike s starting reliability and overall drivability.

---

1. **Age and Wear of Surrounding Components** Even if the gear shaft is the issue, other parts of the starter or transmission (such as the flywheel, clutch, or starter solenoid) may be worn. Replacing just the gear shaft might not fully resolve starting problems if these components are degraded.

2. **Limited Availability of New Parts** While Honda still produces some classic parts, the 1972 CB350F is no longer in mass production, meaning the part may not be readily available from all dealers. You may need to order from specialty suppliers, which could take time or require purchasing from third-party sellers.

3. **Potential for Counterfeit or Low-Quality Parts** If purchasing from an online marketplace, there is a risk of receiving a counterfeit or substandard replica. Always verify the seller s reputation and check for authenticity (e.g., matching part numbers, packaging, or seller reviews).

4. **Installation Complexity** Removing and replacing the starter reduction gear requires disassembling parts of the transmission and clutch assembly. While not extremely difficult, it does require some mechanical skill, tools (such as a starter puller or socket set), and patience. A novice mechanic might struggle without guidance.

5. **Cost of Additional Tools** If you don t already own the necessary tools (e.g., a starter puller, torque wrench, or specialized sockets), you may need to invest in them, adding to the overall expense.

6. **Risk of Overlooking Underlying Issues** If the starter itself is faulty (e.g., a bad solenoid or motor), replacing just the gear shaft won t fix the root cause. A thorough diagnosis (e.g., testing the starter s electrical function) is advisable before purchasing.

7. **Depreciation of Classic Parts** Classic motorcycle parts, while valuable to enthusiasts, can become harder to source over time as manufacturers discontinue production. This could make future repairs more difficult or expensive.

---

Buying the **Honda 28101-333-000 starter reduction idler gear shaft** for your 1972 CB350F is a **practical and cost-effective solution** if the issue is isolated to this component. It offers a direct fit, improves reliability, and prevents further damage to the starter or transmission. However, it is not a "one-and-done" fix you must ensure that no other parts (such as the starter motor, solenoid, or flywheel) are failing. Additionally, the replacement process requires some mechanical skill, and sourcing the part may take longer than for a modern bike.

If you are confident in your ability to diagnose the problem and perform the installation, this is a **recommended purchase**. However, if you suspect broader issues with the starter or transmission, consider having a professional inspect the bike or replacing the entire starter assembly for long-term reliability.

1. **Verify the Problem** Before purchasing, confirm that the starter reduction gear is indeed the faulty component. Test the starter s electrical function (e.g., check for power at the solenoid and motor) to rule out other failures.

2. **Source from a Trusted Supplier** Buy from a reputable dealer, Honda-approved parts distributor, or a well-reviewed online seller to avoid counterfeit parts.

3. **Gather Tools and Instructions** Ensure you have the necessary tools (e.g., starter puller, torque wrench) and follow a detailed repair guide (e.g., from *Haynes* or *Chilton* manuals) to avoid mistakes.

4. **Consider Professional Help if Needed** If you re unsure about diagnosing or installing the part, consult a motorcycle mechanic to assess the full scope of repairs required.

5. **Document the Repair** Keep records of the part and installation date for future reference, especially if you plan to sell or work on the bike again.

**Final Verdict:** **Proceed with the purchase** if the gear shaft is confirmed as the issue and you are prepared for the installation. It is a **wise investment** for maintaining your CB350F s reliability.

Details:

Please look closely at all pictures and ask questions prior to buying. They may have dirt, rust, scratches,dents, nicks etc. See pictures. ITEM: 1972 Honda CB350F Starter Reduction Idler Gear and Shaft, condition: In good condition.

Parts are listed for the year and model stated.

part #: 28101333000 prices

• $20.00-$45.28

specifications cyclevintagee:

• for models: Cb350f
• for makes: Honda
• for years: 1972
• mpn: 28101-333-000
• part type: Idler Starter Gear Shaft
• country of origin: Japan
• machine type: Motorcycle
• color: Silver
• material: Steel
• vintage part: Yes
• placement on vehicle: Front
• unit type: Unit
• oe/oem part number: 28106-333-000, 28101-333-000
• universal fitment: No

offer cyclevintagee:

• started: March 17, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

shipping cyclevintagee:

• transit: 3-7 Days
• service: USPS Ground Advantage
• carrier: USPS
• cost: $6.46
• class: Standard
• type: Calculated

payments cyclevintagee:

• wallet: Apple-pay
• credit card: Visa
• other

seller cyclevintagee:

• # reviews: 5549
• city: Stevensville, Montana
• rating: 100.0%

returns cyclevintagee:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

Honda 28101-333-000 Is Similar To:

• 08p55-mch-200d Honda Nos Upper Center Shaft Trim (33.9% similar) Buying 1 each, new. I take care to package items carefully, but once that leaves my possession have no control over it. I don't respond to questions for a price on offers. I can combine shipping charges for multiple items purchased if its possible. If this is an offer, please bid to own it...(February 11th, 2019)
• 11312-415-000 Honda Cx Custom Or Deluxe Starter Motor Mount Bracket (32.1% similar) This part is from a 1981 CX500 custom. Shipping, I will combine shipping. Please remember this is a used part...(October 12th, 2018)
• 11350-ka4-770 Honda Stator Cover Left Crankcase And Gasket (39.1% similar) A light groove from shiftier rub. This cover and gasket came from a 1985 CR250. Should fit CR250. No cracks, splits or damage to mounting holes. Printed KA4-7710 on inside. It has some scuffs, scratches and dings...(July 6th, 2018)
• 11356-mct-000 And 11357-mct-000 Honda 2006 (16.1% similar) A 2006 honda silver wing FSC600DWITH close to 15,000 maintained miles. Because buyers try to keep our good parts and send their junk back us. Orders over 100 get free shipping to lower 48 USA states. This is against USA federal law and there a 10,000 dollar fine 10 year prison sentence for ...(May 3rd, 2017)
• 12431-300-010 Honda Cb Four Tachometer Drive Gear Engine Speed Shaft (42% similar) Please leave a message if you do not reach someone when call initially. It is possible that this part may work and or fit on other honda model's. This part is ready to install and go ride. Respectfully, XLS parts etc. XLS-parts-etc then go ahead and on the button. Cosmetically, there are some scuffs...(October 24th, 2018)
• 12v90329 Honda Refurbished Oem Starter Solenoid Stainless (37.8% similar) I disassemble the solenoid and discard corrode-able hardware tired seals. Stainless steel nuts and washers replace the battery starter cable connection points. But seriously, the starter solenoid is an extremely strong, durable and simple device. Doesn't it deserve to have all of the original parts ...(March 7th, 2018)
• 13103-964-810 Honda Atc Line Nos Art Piston And Rings (29.3% similar) Honda line 300 piston and rings 77MM...(September 27th, 2018)
• 13104-275-020 Honda Nos Oversize Pistons And Rings (28.3% similar) New old stock pistons and rings for the honda 305 CB77 CL77. Pistons are new but out of the box...(March 7th, 2019)
• 13201-360-310 Nos Honda Oem Engine Crankshaft New Gear Box Cylinder Etc (32.6% similar) A new complete 1975 gear box was used in this build and is compatible with engines because, the engine cases are replacements for model. This engine is just like new. The shifting forks are same for CR125M model's engines. For sale one remanufactured honda CR125M Elsinore engine serial 2,800: the ...(September 23rd, 2018)
• 14110-kv0-760 Honda Vintage Front Intake Cam Shaft Inf (33.9% similar) Camshaft has some wear. Vintage honda VTR250 front intake cam shaft inf R5. Please with any questions...(June 28th, 2018)
• Cr480r Honda 1982 Cr 480 R Nice Kill Switch Good Wiring And Connectors Test (33.1% similar) Nice item as pictured. May be correct for several years and model's 1983 CR480 other Cr model's. Rubber is good honda Cr 480 r oem kill switch as pictured removed from bike manufactured see pictures for best nice shape. Good wiring and connectors...(May 11th, 2016)