Seeing that Zhao Guoyang arrived at the test site, not only Mu Aijun, but also several other people around the lawn mower were also surprised.

Hua Guosheng, Xu Dongfeng, and Chang Yuan, although they didn't dare to shout loudly, they all greeted Zhao Guoyang with expectant eyes.

The only one at the scene who didn't like Zhao Guoyang to come was Huang Xiaohua, who caused trouble.

This guy has always been arrogant, and now that he has made such an oolong incident, he is naturally gloomy.

Originally, he thought that he could solve the problem. But after surviving all morning, Huang Xiaohua was completely confused, he already knew in his heart that this problem was not something he could solve at all.

Now Zhao Guoyang suddenly appeared in front of everyone as a savior, which intensified the sense of loss in Huang Xiaohua's heart.

Huang Xiaohua's face was blue, others naturally had no time to take care of it, and seeing that Zhao Guoyang had arrived, Mu Aijun hurriedly waved his hand to let everyone out of the way and let him come over.

"Guoyang, help me see why there is such a big problem with this batch of lawn mowers!" Mu Aijun pointed to a lawn mower and gestured.

"The fuel tank is full, the carburetor can also be fueled normally, and the spark plug can also be ignited normally, but for some reason, it can only continue to work for an hour, and it will not work. It's going to be shipped in two days, what should I do......"

Seeing that Director Mu was a little anxious, Zhao Guoyang hurriedly comforted: "Director Mu, don't worry. The working principle of the lawn mower is not complicated, it can operate normally, which means that the system of the whole machine is no problem. As for the shortening of working hours, it may be related to the abnormal fuel system, which is not a difficult problem to solve. ”

Hearing Zhao Guoyang say so calmly, Mu Aijun's hanging heart was put down.

He knows Zhao Guoyang and knows that this young man has never been untargeted. Since he said that it is not a problem, then there is at least a seventy or eighty percent chance that it can be fixed.

Wang Youchang on the side also helped: "Yes, Director Mu." Guoyang has already told me on the road just now that the reason why our mowers have such a problem is probably related to the change in the mixing ratio inside the carburetor. As long as you readjust the air-to-fuel ratio inside the carburetor, you can return to normal. ”

Just when Wang Youchang and Mu Aijun were trying to explain, Zhao Guoyang was already talking to Hua Guosheng.

Hua Guosheng nodded again and again when he heard this, and took Xu Dongfeng and Chang Yuan to open the shell of the lawn mower neatly, revealing the structure inside.

After they finished this step, Zhao Guoyang stepped forward to check the cylinder seal, and then looked at whether the valve was leaking.

After confirming that there was no problem, Zhao Guoyang basically counted, and it must be a problem with the carburetor.

Generally speaking, the carburetor can automatically match the corresponding mixed gas concentration in this state according to the requirements of the working state of the engine.

However, due to the carburetor of his new batch of lawn mowers, Huang Xiaohua made modifications, which changed the space capacity inside, and this change did not correspond to the original parameters of the engine.

Now that the engine is working, the carburetor still automatically proportions the amount of gasoline in the original space, and the concentration of the natural mixer becomes smaller. The shortened working hours are also deserved.

To solve this problem, you only need to change the height of the float of the container in the carburetor to control the amount of oil.

Of course, the specific height change still has to go through a series of calculations, depending on how much Huang Xiaohua expands the internal space of the carburetor.

Zhao Guoyang glanced at Huang Xiaohua, who was standing stupidly next to him, and quietly took over the drawings of the transformed carburetor from him.

"Hey, you...... What are you doing! This is the drawing I made!" Huang Xiaohua reacted and shouted loudly.

"Do you think I'm rare with your problematic drawings? I just want to see how wrong you are!" Zhao Guoyang didn't reply.

Zhao Guoyang is not talking nonsense, it is true that there are too many problems on Huang Xiaohua's drawing.

This guy didn't even think about increasing the cross-sectional area of the outlet throat after increasing the internal space of the carburetor, which in itself was a very low-level mistake.

As for the gas mixture, needless to say, this guy is even more impossible to take into account.

After seeing some of the data on Huang Xiaohua's drawings, Zhao Guoyang knew it in his heart.

He patted Hua Guosheng on the shoulder and motioned for him and Xu Dongfeng to disassemble the carburetor, revealing the float chamber inside.

According to the data obtained after his mental arithmetic, Zhao Guoyang readjusted the height of the float in the float chamber on the floating surface, and then closed it.

After the few of them reinstalled the carburetor and restored the lawn mower shell, Zhao Guoyang said to Hua Guosheng: "Okay, Hua Gong." Later, when it comes to repair, just adjust the height of the float in each float chamber according to the height I just adjusted. ”

Hua Guosheng was naturally convinced of Zhao Guoyang's words, and nodded again and again.

Mu Aijun and Wang Youchang next to them, you look at me, I look at you, it's a little incredible.

Mu Aijun doesn't care, after all, he is not from a technical background. However, Wang Youchang, the deputy director of technology, was also a little stunned by Zhao Guoyang's series of actions just now, and he couldn't understand it at all.

"Guoyang, that's it...... Is it okay?" Mu Aijun saw that Lao Wang beside him was meditating, and couldn't help but ask Zhao Guoyang.

"Well, don't worry, Director Mu. The previous problem with short working hours was caused by an abnormal fuel system. I've just readjusted the mix ratio inside the carburetor and I'm sure everything is OK. ”

"Ah, that's right. That Xiao Xu, Xiao Chang, you guys take this lawn mower and give it a try. We're here to wait for the results!"

Director Mu spoke, and Xu Dongfeng and Chang Yuan naturally didn't dare to slack off. The two took the lawn mower and began to work in the bushes around the test site.

Seeing the "buzzing" sound of the lawn mower, Huang Xiaohua glanced at Zhao Guoyang with resentful eyes, and secretly prayed in his heart that the machine would turn off in a while, so that this guy would also fall a lot.

Zhao Guoyang is very confident in his repair plan just now. He took out a pack of cigarettes from his pocket and gave them to the two factory directors and Hua Guosheng.

"Director Mu, Director Wang, the 'China' brought back by Songjiang tastes authentic enough!"

Looking at his leisurely appearance, Mu Aijun and Wang Youchang felt a lot more stable.

The two took the cigarettes, lit them one after another, and began to ask about Zhao Guoyang's trip to Songjiang.

When the two factory directors heard Zhao Guoyang say that they were going abroad in March, accompanied by the chairman of Songqi Group and the mayor of Songjiang City, Rao was that they had experienced strong winds and waves, and they couldn't help but be speechless.