The head with spark plugs installed seen from what will be the top side.

头部火花塞安装从什么将顶端一方。

youdao

Yes, you can clean spark plugs, but in most cases its not worth it.

是的，你可以清洁火花塞，但是大多数时候不值得。

youdao

Yes, you can clean spark plugs, but in most cases its not worth it.

是的，你可以清洁火花塞，但是大多数时候不值得。

youdao