1. Motorcycle & Scooter Starter Motors Parts
  2. sku: 7886881397528793
  3. YAMAHA 3R3-15621-00

YAMAHA 3R3-15621-00 Nos Kick Starter Crank 39W

fits model: Yz125, Boss. make: Yamaha. year: 1982–1985.

3r3-15621-00 Yamaha Nos 1980 1981 1982-1985 Yz125 Kick-starter Kick Boss Crank 3r3-15621 39w

( Manufacturer Part Number: 3R3-15621-00 ), ( Type: Starter Motor ), ( Manufacturer Warranty: No ), ( Oe/oem Part Number: 3r3-15621-00, 39w-15621-00 ), ( Finish: Oem ), ( Country Of Origin: Japan ), ( Placement On Vehicle: Right )

Review YAMAHA Nos 1980 1981 Kick starter Crank 3r3-15621 39w fits BOSS YZ125 1982–1985

The Yamaha YZ125 is a legendary motorcycle that was first introduced in 1973 and continued production until 1985. This particular part is a Kick Boss Crank for the 1980 to 1985 models with the engine type 3R3-15621-00. This crank is responsible for converting the energy from the rider's kick into rotational motion for the engine.

The Kick Boss Crank is a significant component that requires durability and reliability. It is designed with a robust construction that can withstand the rigors of regular use. The crank arm is made of high-tensile steel, ensuring it can handle the torque generated during the engine's ignition cycle. The crankshaft is also built with precision to ensure smooth operation and minimize vibrations.

The Kick Boss Crank comes with a kick starter. The kick starter is an essential accessory for motorcycles that do not have an electric starter. It allows the rider to manually start the engine by applying a forceful downward kick to the starter. The kick starter is robustly designed to provide a reliable starting experience, even in challenging conditions.

The Kick Boss Crank has a power output of 39 watts. This power output is sufficient to start the engine efficiently, even when the battery is weak or dead. This makes it an excellent choice for riders who prefer a traditional starting mechanism or for those who need a backup starting system.

The Kick Boss Crank is an authentic Yamaha part that is designed to fit perfectly with the 1980 to 1985 YZ125 models with the engine type 3R3-15621-00. It is manufactured to meet Yamaha's stringent quality standards, ensuring that it delivers optimal performance and reliability.

In summary, the Yamaha 3R3-15621-00 Kick Boss Crank is an essential component for the 1980 to 1985 YZ125 models. Its robust construction, reliable kick starter, and sufficient power output make it a valuable addition to any motorcycle enthusiast's toolkit. Whether you prefer a traditional starting mechanism or need a backup system, the Kick Boss Crank is an excellent investment for your Yamaha YZ125.

A Detailed Analysis of the Yamaha YZ125 Kick-Starter Kick Boss Crank (3R3-15621) for 1980-1985 Models

1. Background

The Yamaha YZ125 is a legendary motorcycle, known for its performance and durability. For those who prefer the traditional kick-start mechanism, an aftermarket kick-starter crank like the Yamaha part number 3R3-15621 is an attractive option. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this particular crank.

2. Advantages

a. Traditional Feeling: For riders who appreciate the feel and technique of using a kick-starter, this crank provides an authentic and nostalgic experience.

b. Durability: Yamaha is a reputable brand known for producing high-quality motorcycle parts. This crank is expected to offer the same level of durability and reliability as other original Yamaha components.

c. Availability: Aftermarket parts like this crank are generally easy to find and buy, allowing riders to quickly make repairs or upgrades to their bikes.

3. Disadvantages

a. Cost: Replacing the stock crank with an aftermarket kick-starter crank like the 3R3-15621 can be more expensive than simply fixing or upgrading the existing crank.

b. Learning Curve: Installing a kick-starter crank requires some mechanical knowledge and skill. If you are not confident in your abilities, it may be best to seek professional help.

c. Weight: A kick-starter crank generally adds more weight to the motorcycle, which could negatively impact performance, particularly in racing applications.

4. Conclusion

The decision to buy the Yamaha 3R3-15621 kick-starter crank ultimately depends on your personal preferences, riding style, and mechanical abilities. If you value the traditional feel and experience of using a kick-starter, and have the skills or resources to install it, then this crank could be a worthwhile investment. However, if you are looking for the most cost-effective solution or prioritize lightweight components, other options may be more suitable for your needs.

5. Recommendation

Before making a purchase, carefully consider your riding style, experience level, and budget. If you are confident in your abilities and prefer the traditional feel of a kick-starter, then the Yamaha 3R3-15621 kick-starter crank could be a great addition to your motorcycle. However, if you are unsure or have concerns, it may be wise to consult with a professional mechanic or explore alternative solutions.

Details:

YAMAHA PART# 3R3-15621-00 KICK BOSS. NEW OLD STOCK, SPLINES ARE IN EXCELLENT CONDITION AS SEEN PHOTOS HARD TO FIND AND IS OBSOLETE NO LONGER AVAILABLE AT YAMAHA, PERFECT FOR YOUR RESTORATION OR VINTAGE RACER 3R3 KICK BOSS EXTREMELY RARE. YAMAHA NOS 1980, 1981, 1982 ,1983,1984,1985 YZ125 KICK START LEVER, CRANK, BOSS IN EXCELLENT CONDITION.

part #: 3r31562100 prices

  • $35.00-$40.00

specifications scostarters:

  • for models: Yz125, Boss
  • for makes: Yamaha
  • for years: 1982-1985
  • mpn: 3r3-15621-00
  • type: Starter Motor
  • manufacturer warranty: No
  • oe/oem part number: 3r3-15621-00, 39w-15621-00
  • finish: Oem
  • country of origin: Japan
  • placement on vehicle: Right

shipping scostarters:

  • cost: $5.52
  • class: Standard
  • service: USPS Ground Advantage
  • carrier: USPS
  • type: Calculated
  • transit: 4-10 Days

general scostarters:

  • Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Starter Motors
  • condition: New

seller scostarters:

  • rating: 100.0%
  • city: Phoenix, Arizona
  • # reviews: 2322

returns scostarters:

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

payments scostarters:

  • other
  • credit card: Discover
  • wallet: Paypal

offer scostarters:

  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • started: April 10, 2026
for models: yz125, boss, for makes: yamaha, for years: 1982-1985, type: starter motor, manufacturer warranty: no, oe/oem part number: 3r3-15621-00, 39w-15621-00, finish: oem, country of origin: japan, placement on vehicle: right,
category: motorcycle parts > motorcycle scooter parts accessories > electrical ignition components > starter, sku: 7886881397528793,

Yamaha 3R3-15621-00 Is Similar To:

scostarters logo
5 offers $35.00–$40.00 USD
  • Offer #1: $35.00 price + $8.62 shipping estimate = $43.62* total. Other number 3R3-15621-01-00.+$8.62 shipping
  • Offer #2: $40.00 price + $18.37 shipping estimate = $58.37* total. It is NOS and in great condition.+$18.37 shipping
  • Offer #3: $38.38 price + $14.39 shipping estimate = $52.77* total.+$14.39 shipping
  • Offer #4: $57.17 price + $26.56 shipping estimate = $83.73* total. GENUINE YAMAHA PARTS. IT175 1980-1981.+$26.56 shipping
  • Offer #5: $40.82 price + $34.01 shipping estimate = $74.83* total. DISCONTINUED PART. IT175,YZ125.+$34.01 shipping

Copyright © scostarters.com