Writeacher, I urgently need you to check these sentences, though I believe they don't make sense.

Although I'm not a mechanic, I don't think the use of scientific English is correct.

1) I would like to focus on a kind of technology which is used to increase the efficiency and drivability of high performance motorcycles called crossplane crankshaft.
2) It was first introduced in 2004 world championship race season and it offers the riders more linear power control.
3) When an engine produces torque, it is actually producing what engineers refer to as “composite torque”, which is a combination of the torque produced by combustion, and the inertial torque resulting from this revolutionary crankshaft.
4) The level of combustion torque is both proportionate to and also a direct result of the rider’s throttle input. The inertial torque is produced in direct relation to the changes in inertial force caused by this new type crankshaft.

1) The sentence seems clear and understandable, but it could be improved by providing more context about what a crossplane crankshaft is and how it works. To make it clearer, you could rephrase it as:

"I would like to focus on a specific technology used to increase the efficiency and drivability of high-performance motorcycles, known as a crossplane crankshaft. This technology, introduced in the 2004 world championship race season, offers riders improved linear power control."

2) The sentence is grammatically correct, but it could be made more concise by removing the unnecessary repetition of "it." Additionally, you could provide more information about what exactly the power control does. Consider revising it as:

"Introduced in the 2004 world championship race season, the crossplane crankshaft provides riders with enhanced linear power control for high-performance motorcycles."

3) The sentence is quite technical and may benefit from simplification and clarification. You could consider breaking it down into two separate sentences to improve readability. Here's a suggested revision:

"When an engine generates torque, engineers refer to it as 'composite torque,' which is the combined result of the torque produced by combustion and the inertial torque resulting from the use of the crossplane crankshaft."

4) The sentence is quite technical and may be challenging to understand without more context. Consider expanding on the concept of "combustion torque" and "inertial torque" to improve clarity. Here's a suggested revision:

"The level of combustion torque in the engine is directly proportional to the rider's throttle input. Simultaneously, this new type of crankshaft also produces inertial torque, which is directly influenced by changes in inertial force caused by the crossplane crankshaft."

Remember to provide more context and explanations for technical terms to ensure better understanding by readers.