When he returned to the courtyard, Jiang Yan also glanced at his pocket watch, which was less than four o'clock.

During the day, there are only a few people left in the courtyard who work and go to school.

Thinking about it, Jiang Yan just moved his bicycle through the gate of the courtyard and met Yi Zhonghai's daughter-in-law Li Xiulian who came out of the courtyard.

"Xiao Yan, you're buying a bicycle, it costs a lot of money!"

"Aunt Yi, it didn't cost much, I bought a second-hand bicycle in a commission store. I don't think it's convenient to go out without buying a car, and besides, grandma's legs and feet are not good, and there is such a bicycle that can take grandma around. ”

"Or you kid has filial piety. The old lady is blessed to follow you. ”

"Aunt Yi, you are busy first, and I will go home. Grandma is still waiting for me! ”

Jiang Yan said hello to several uncles and aunts chatting in the courtyard and went back to the backyard directly.

After Jiang Yan left, they all began to discuss.

"This is the first bicycle in our courtyard!"

Another neighbor said, "Not only is it the first car in our courtyard, but it is also estimated that it is also the first car in our entire alley." ”

"This little talk is quite rich! How much does this cost, it's not good to have this money to buy a little food and drink! ”

"I've heard that Jiang Yan's master is a martyr, and the state gives him a lot of pensions."

"Even if you have a pension, you can't spend it like this! If you spend money lavishly, there will be that person who will dare to marry him in the future. ”

All those who said this agreed unanimously.

"O you! This is really salty and don't worry about eating turnips, and there are still old ladies! ”

"Grandma, you see I bought a bike." As soon as I came to the backyard, I saw Grandma Lu sitting under the porch and collecting the soles of her shoes.

"How did you remember to buy a bike?" When she said this, the old lady didn't raise her head.

"Grandma, I think so, with a bicycle, it's not convenient for us to go out, your old legs and feet are not good, with a bicycle, I can often take you out to go around the province boring."

After saying this, Jiang Yan also patted the seat of the bicycle vigorously, as if to add a little convincing.

"And I'm going to work tomorrow, it's too far away, and it's an hour to walk on my legs! It's a little more convenient to have it. ”

Hearing Jiang Yan's words, Grandma Lu put down the work in her hand, looked at Jiang Yan and said, "Didn't you follow Xiao Luo to school?" How did you go to work again. I'm not going to school anymore! ”

"Go to school, go to school, it's such a grandma, didn't Uncle Luo take me to the test in the morning, this test is terrible, the principal of the people has said, I can directly take the university exam, and I just passed the university exam today, and I can only take the exam next year."

"I read some books on maintenance, and in order not to waste time and practice, Uncle Luo recommended me to work in their maintenance station."

"Then you're going to have to work hard, you know?"

"Don't worry! Grandma will definitely work hard and will not disappoint you and Uncle Luo. ”

After Jiang Yan finished saying this, he took down a few dim sum boxes from the car, and in this dim sum box were the pastries bought from "Bai Ji Rice Cakes", parked the bicycle, and came to Grandma Lu like a dog, and put the dim sum box in front of Grandma Lu like a treasure, and then spoke.

"Grandma, look what I bought you. This is the "Bai Kee Rice Cake", which has their most famous pea yellow. ”

"Spending money again, didn't you say that you would save some money?" After taking the things that Jiang Yan bought, Grandma Lu said Jiang Yan a little complainingly.

"Grandma, it's not like I'm happy today, so I bought a little something, put these snacks here for you, and eat a little when I'm hungry when I'm fine."

Then Jiang Yan proposed to Grandma Lu: "Grandma, you see I just bought a bicycle, why don't you go out and celebrate tonight." ”

"You monkey cub, I just said that you want to save a little, you want to go out to eat, so if you don't go, just eat at home, it's time for me at home A few days ago, you went to the "Tianfuyuan" to buy the sauce elbow, grandma, I am copying two dishes. ”

Hearing Grandma Lu's words, Jiang Yan drooped his head and said, "That's okay!" It's all together at home. ”

"Make up a mouthful, this has the sauce elbow of "Tianfuyuan" and is called making up a mouthful. ”

After Grandma Lu said this, she pretended to be angry and slapped Jiang Yan twice, and Jiang Yan also begged for mercy from Grandma Lu again and again.

After returning to the courtyard after waiting for work and school in the evening, there was an uproar after Jiang Yan bought a bicycle, and many people formed a team to go to the backyard to see the bicycle, which made Jiang Yan a little annoyed.

"Pillar, Da Mao, this bike will be handed over to the two of you, take care of him."

Jiang Yan instructed He Yuzhu and Xu Damao, who were full of excitement, but he hid in the room and read a book, not caring about things outside.

At night, when Grandma Lu fell asleep, Jiang Yan disappeared directly from the bed, and the next moment, Jiang Yan appeared directly in his own space.

When I came to the library on the second floor, this library had been converted into a lounge in the space, and I turned on my computer and began to look up the information I had stored before.

Not only is the tap water in the space unlimited, but the electricity in it is also unlimited, but my computer is not connected to the Internet. Only a few previously stored information can be consulted.

After a while, I found all the information about the three-wheeled part of the little devil's imitation of Harley's motorcycle.

This information is quite complete, and even the drawings of the engine are available, and when he saw this thing, Jiang Yan studied it directly.

When you are tired, lie on the bed and take a rest, and drink a little fat house happy water by the way, but you have to save some fat house happy water, and there is not much storage.

After drinking, if you want to drink fat house happy water, you can only wait until the reform and opening up.

This partial three-wheel of the little devil is a Prince motorcycle structure, an air-cooled V-shaped parallel bar engine, with a displacement of 1207 cc, a maximum power of 28.5 horsepower, a maximum torque of 63 Nm, and a gearbox with 3 forward gears and 1 reverse gear.

Compared with the engines of later generations, this thing is relatively simple, according to Jiang Yan's speculation, as long as I have the drawings of this engine, it should not be difficult to manufacture it, after all, our country is good at creating miracles.

However, it is a question whether this drawing can be taken out, and how to explain the source of this drawing when you take it out. Don't take it out! At this time the country officially lacked means of transport.

Thinking of this, Jiang Yan had a headache.

Suddenly, Jiang Yan thought of the word reverse imitation.

You must know that China's reverse engineering can be said to have reached the pinnacle in the last world, from the J-7 that imitated the MiG-21 in ancient times, to the J-15 carrier-based aircraft that imitated the Su-33 now, and the Hongqi-9 anti-aircraft missile that imitated the S-300, only one or two samples can be reversed to obtain a large number of key technologies.

Now that you have drawings, you can disassemble such an engine a few times, then you can lie that you are a reverse copy.

As for whether they believe it or not, that's their business, but the key is that at their damn age, they are too restricted in what they do.