K-L SUPPLY 20-6812 Tune Up Nos Kit ATC90 71-78

( Brand: K-l Supply ), ( Manufacturer Part Number: 20-6812 ), ( Country Of Origin: Japan )

Review K L SUPPLY Kawasaki Tune Up Kit Nos 71-78

The **Kawasaki Tune-Up Kit (Part Number: 20-6812)** designed for **ATC90 engines** (covering model years **1971 through 1978**) is a meticulously crafted maintenance solution engineered to restore peak performance, reliability, and longevity to your classic Kawasaki outboard motor. This high-quality kit is meticulously assembled with precision-engineered components, ensuring seamless compatibility with the ATC90 s robust yet aging mechanical systems. At its core, the kit includes a **fresh set of spark plugs** specifically chosen for optimal ignition efficiency, delivering a stronger, more consistent spark to enhance combustion and fuel economy. The **air filter** is a premium, high-flow unit designed to maximize airflow while effectively trapping dust, debris, and contaminants, protecting the engine s internal components from premature wear. For those who prioritize performance, the **carburetor jet kit** (if applicable) is included, featuring precision-machined jets that fine-tune fuel delivery, ensuring a smoother throttle response and improved power output critical for maintaining the sporty, responsive nature of the ATC90.

Beyond the essentials, this tune-up kit also incorporates **high-quality spark plug wires**, engineered to resist heat and electrical resistance, ensuring a stable and reliable electrical connection between the spark plugs and ignition system. The **oil filter** is a robust, high-flow unit designed to trap fine particles and maintain optimal oil cleanliness, reducing engine friction and extending the life of the lubrication system. For engines that have seen significant use, the kit may also include **new piston rings or cylinder seals**, if applicable, to address minor compression losses and restore power. The **fasteners and gaskets** are included in a variety of sizes to ensure a secure, leak-free assembly, with corrosion-resistant coatings to prevent rust and deterioration especially important for older engines exposed to marine environments. Whether you're preparing your ATC90 for a weekend of high-speed cruising or restoring it to showroom condition, this tune-up kit provides everything necessary to perform a thorough, professional-grade maintenance overhaul without the need for specialized tools or expertise.

What sets this Kawasaki tune-up kit apart is its **attention to detail and compatibility** each component is sourced to meet or exceed OEM specifications, ensuring that your engine runs as smoothly as it did when it left the factory. The kit is ideal for both seasoned mechanics and enthusiasts looking to tackle maintenance themselves, as it includes clear instructions and high-quality parts that fit snugly into the ATC90 s engine bay. By investing in this kit, you re not just performing routine maintenance; you re preserving the heritage and performance legacy of your Kawasaki outboard, ensuring it remains a reliable and thrilling companion for years to come. Whether you're launching into open water or simply keeping your classic in top shape for the next adventure, this tune-up kit is the ultimate solution for keeping your ATC90 running at its best.

### **Pros and Cons of Buying a Kawasaki Tune-Up Kit (Part #20-6812, ATC90, 71-78 Models)**

1. **Cost-Effective Maintenance** A tune-up kit provides a complete set of essential components needed to restore engine performance, often at a lower cost than individual parts purchased separately.

2. **Improved Engine Performance** Replacing spark plugs, ignition wires, and filters (if included) can enhance fuel efficiency, power output, and overall engine responsiveness.

3. **Preventative Care** Regular tune-ups help prevent minor issues from becoming major problems, extending the engine s lifespan and reducing long-term repair costs.

4. **Compatibility** This specific kit is designed for Kawasaki ATC90 models from 1971 to 1978, ensuring proper fitment without the need for modifications.

5. **Convenience** Buying a pre-packaged kit simplifies the process, as all necessary parts are included in one order, reducing the risk of missing components.

6. **Standardization** Using OEM or high-quality aftermarket parts ensures reliability and compatibility with the engine s original specifications.

7. **DIY-Friendly** Tune-up procedures for these models are relatively straightforward, making it a manageable project for those with basic mechanical skills.

1. **Age of Parts** Some components in aftermarket kits may not be as durable as newer OEM replacements, potentially requiring more frequent replacements.

2. **Limited Scope** A tune-up kit typically covers spark plugs, wires, and sometimes filters, but may not include other critical maintenance items like valves, carburetor adjustments, or timing belt replacements (if applicable).

3. **Quality Variability** Depending on the brand, some kits may contain lower-quality parts that wear out faster than original equipment, negating long-term benefits.

4. **Labor Time** While the process is manageable, removing and reinstalling components (e.g., spark plugs, carburetor) can still require time and patience, especially for less experienced mechanics.

5. **Potential for Overlooking Issues** A tune-up addresses symptoms of wear but does not diagnose deeper mechanical problems (e.g., compression loss, fuel system leaks). Additional diagnostics may be needed.

6. **Availability of Parts** Some components (e.g., specific ignition coils or filters) may be harder to find in stock, delaying the project if the kit is incomplete.

7. **Cost vs. Professional Service** While cheaper than a full service, a professional tune-up may catch additional issues that a DIY approach might miss.

---

### **Conclusion**

A Kawasaki tune-up kit (20-6812 for ATC90, 71-78) is a practical and economical choice for maintaining or restoring engine performance in these older models. It offers clear benefits in terms of cost savings, improved efficiency, and preventative care. However, it is not a comprehensive solution it requires careful selection of quality parts and may need to be supplemented with additional maintenance (e.g., carburetor cleaning, valve adjustments) for optimal results.

For those comfortable with basic mechanical work, this kit is a solid investment. Those less experienced or dealing with persistent engine issues may benefit from consulting a mechanic to ensure no underlying problems are overlooked.

### **Recommendation**

- **Buy the kit** if you are performing routine maintenance and have confidence in your ability to complete the tune-up correctly.

- **Prioritize quality** by choosing reputable brands (e.g., NGK spark plugs, Bosch filters) to maximize longevity.

- **Supplement with additional checks** inspect the carburetor, fuel system, and ignition timing if the engine exhibits unusual symptoms.

- **Consider professional help** if the engine has been neglected for an extended period or if you suspect deeper mechanical issues.

For most owners, this kit strikes a good balance between affordability and effectiveness, provided it is used as part of a broader maintenance routine.

Details:

With a focus on fuel delivery and air intake, this kit ensures that your Kawasaki engine runs smoothly efficiently, enhancing overall riding experience. The K L Supply Kawasaki Tune Up Kit 20-6812 is a high-quality aftermarket part designed for ATC90 model's from 1971 to 1978. Made in Japan by the trusted brand K L Supply, this tune-up kit includes essential components for maintaining and improving performance of your motorcycle.

part #: 206812 prices

• $12.99-$31.82

specifications intakefuelmotorcycle:

• for makes: Kawasaki
• brand: K-l Supply
• mpn: 20-6812
• country of origin: Japan

returns intakefuelmotorcycle:

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

offer intakefuelmotorcycle:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: March 2, 2026
• availability: In Stock
• best offers: True

shipping intakefuelmotorcycle:

• transit: 3-9 Days
• cost: $2.00
• type: Fixed
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS

payments intakefuelmotorcycle:

• wallet: Paypal
• other
• credit card: Mastercard

seller intakefuelmotorcycle:

• # reviews: 2996
• city: Newton, Kansas
• rating: 99.8%

general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: New

K-l Supply 20-6812 Is Similar To:

• 11-4737 Supply Kawasaki Carburetor Intake Boot Set Of Mult Years (40.7% similar) K l this listing: 11-4737KAWASAKI part number for reference fitment: 1982 kawasaki KZ650 h2 h3 CSR 1983 CST 1984 KZ700 a1 a2 1980 KZ750 e1 e2 E31981 e3 1983 f1 ltd l3 h1 h4 LTD1981 LTD 1983 n1 n2 SPECTRE 1983 spectre r1 GP ZX750 a3 GPZ 1984 1985 TURBO 1985 turbo mobile phone buyers: ...(October 19th, 2018)
• 11-6164 11-4164 Supply New Kawasaki Police Carb Holder Intake Boots (39.7% similar) 4 brand new carb holders side id 34MM made in japan kawasaki part nos fits z1 Z1A Z1B KZ900A4 1976 KZ900B1 ltd KZ1000A1 a2 KZ1000A3 a4 Mike KZ1000B1 b2 b3 b4 KZ1000C1 C1A c2 c3 c4 police KZ1000E1 e2 shaft 1978 KZ1000D1 Z1R 1980 KZ1000D3...(July 7th, 2018)
• 18-0245 Supply Kawasaki Accelerator Pump Repair Rebuild Kit (40.7% similar) New in package...(March 3rd, 2018)
• 18-2461 Supply Kawasaki Carburetor Carb Repair Rebuild Kits Gpz Ltd (44.4% similar) Purchased but then sold the bike...(February 27th, 2019)
• 18-5106 18-5107 Supply Suzuki New Carburetor Rebuild Kit (29.6% similar) This item: is brand new. It is in hand ready to ship today. Open communication. It has high quality alcohol resistant needle and o-rings. It is made in japan. Bin location: motor room 5107 this item will fit the following model's: Suzuki VS800GL intruder VS800 boulevard S50 VZ800 marauder VS1400 S83...(April 13th, 2018)
• 18-8875 K L Supply Kawasaki (39.5% similar) Made in japan...(June 26th, 2017)
• 18-9335 And Supply Carb Repair Kit (34.4% similar) Expedited shipping via USPS priority mail with delivery confirmation is available. This occasionally happens, and is rare. Motor city sports center, inc. Fitment data may not list all model's and years that is 100 correct. This image is a manufacturers photo and meant to be representative of the ...(April 12th, 2018)
• Single189348 Supply Carburetor Repair Kit Honda Shadow Ace Deluxe Spirit Carb (35.3% similar) One carburetor repair kit for Honda VT750C motorcycles...(March 30th, 2018)
• K l Supply 18-8944 5 pck K l Float Needles For Yamaha Suzuki Kawasaki (39.1% similar) This product is a pack of 5 k l float needles, part number 18-8944, designed for Yamaha, Suzuki, and kawasaki motorcycles. It is a replacement part for the fuel delivery system, specifically float needles, ensuring proper flow and performance in compatible makes...(January 5th, 2025)
• K And L Supply 18-2774 Fuel Petcock Repair Kit (40% similar) Fast free, shipping: brand k and l Supply, part number 18-2774, UPC code 4, condition new. The compatibility section is not always 100% accurate. This item comes with the full manufacturers warranty. May not be accurate. The color, quantity, size, etc...(January 8th, 2025)
• K And L Supply 18-2812 Petcock Repair Kit Fits Suzuki Gsxr600 1997-2000 (43.1% similar) Fast free, shipping: brand k and l Supply, part number 18-2812, UPC code 6, condition new. May not be accurate. This item comes with the full manufacturers warranty. The color, quantity, size, etc. The compatibility section is not always 100% accurate...(January 9th, 2025)