4JX-11400-00-00

CRANKSHAFT, Yamaha

fits: 1994–1997 YAMAHA YZ250/WR2502 offers available: $249.99–$449.99
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4JX-11400-00-00 Comparison

4JX-11400-00-00 in Used Condition
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1994 Yamaha WR250 Engine Crankshaft Rod Bottom End Assembly 4JX-11400-00-00 Details$249.99Condition is Used, 1994 Yamaha WR250 Engine Crankshaft Rod Bottom End Assembly 4JX-11400-00-00, shipping cost = $13.60Top Rated99.9%
Yamaha WR250Z 1994 - 1997 Crankcase Engine Bottom End Motor Crankshaft WR250 Details$449.99Condition is Used, Yamaha WR250Z 1994 - 1997 Crankcase Engine Bottom End Motor Crankshaft WR250, shipping cost = $44.99100.0%
4JX-11400-00-00 YAMAHA Crankshaft Core Rebuild Kit YZ2504JX-11400-00-00 YAMAHA Crankshaft Core Rebuild Kit YZ250 #24JX-11400-00-00 YAMAHA Crankshaft Core Rebuild Kit YZ250 #3

The Yamaha 4JX-11400-00-00 Crankshaft Core Rebuild Kit is a comprehensive solution designed specifically for the YZ250 models from 1994 to 1997, as well as the WR250. This kit is an essential tool for any enthusiast or professional working on these iconic bikes, providing all the necessary components for a thorough crankshaft rebuild.

The heart of the kit is the high-quality crankshaft core, which has been meticulously engineered to deliver superior performance and longevity. This core is designed to perfectly fit the YZ250 and WR250 models, ensuring a seamless integration with the existing engine components.

The kit also includes a new main bearing set, which consists of the main bearing, cap, and seal. These components are crucial for the smooth operation of the engine, and the high-quality materials used in their construction ensure a long-lasting, reliable performance.

Furthermore, the kit includes a new counterweight, which is essential for balancing the crankshaft and improving engine performance. The counterweight is precision-machined to fit perfectly with the crankshaft, ensuring a smooth and efficient operation.

The Yamaha 4JX-11400-00-00 Crankshaft Core Rebuild Kit also includes a new pin and bushing set. These components are responsible for connecting the crankshaft to the connecting rods, and the high-quality materials used in their construction ensure a robust and reliable performance.

Lastly, the kit includes all the necessary hardware, such as bolts and nuts, to complete the crankshaft rebuild. This ensures that the entire process is as straightforward and hassle-free as possible.

In summary, the Yamaha 4JX-11400-00-00 Crankshaft Core Rebuild Kit is a comprehensive solution for rebuilding the crankshaft on your YZ250 or WR250. It includes everything you need for a thorough and reliable rebuild, from the high-quality crankshaft core to the necessary hardware. Whether you're a professional mechanic or an enthusiast working on your own bike, this kit is an essential tool for ensuring the longevity and performance of your engine.

Pros of buying a Yamaha YZ250 94-97 WR250 Crankshaft Core Rebuild Kit:

1. Cost-effective: Rebuilding the crankshaft can be cheaper than buying a new one, especially if the crankshaft is in good condition but needs some repairs.

2. Improves Performance: A rebuilt crankshaft can improve the engine's performance, making the bike run smoother and more efficiently.

3. prolongs the life of the engine: Rebuilding the crankshaft can help extend the life of the engine, saving you money in the long run.

Cons of buying a Yamaha YZ250 94-97 WR250 Crankshaft Core Rebuild Kit:

1. Time-consuming: Rebuilding the crankshaft can be a time-consuming process, requiring a significant amount of time and effort.

2. Requires specialized tools: Rebuilding the crankshaft requires specialized tools and equipment, which can be expensive to purchase or rent.

3. Risk of damage: There is a risk of damaging the crankshaft or other engine components during the rebuild process, which can lead to additional repair costs.

In conclusion, buying the Yamaha YZ250 94-97 WR250 Crankshaft Core Rebuild Kit can be a cost-effective way to improve the performance and longevity of your engine, but it requires a significant amount of time, specialized tools, and a certain level of mechanical expertise. If you are comfortable with these requirements, a rebuild kit can be a good option for you. However, if you are not confident in your ability to complete the rebuild yourself, it may be worth considering having a professional mechanic do the work for you.

Details:

Fitment guide is not always accurate. This crank is a core and will need to be rebuilt using the supplied parts therefore listed for parts or not working. This part came off a 1994 Yamaha YZ250 motorcycle. Up for sale is a used oem crankshaft with failed lower rod bearing, new aftermarket Maura connecting rod/bearing kit, bearings/seals sealed in packaging, and engine gasket kit packaging.

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rating: 99.6% out of 100 based on 230 user ratings.
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