The Japan striker netted the winner in Shanghai to beat the Hammers and he is eager to grasp his chance in the Toon frontline.
Muto said: "We showed a great performance and played well. I scored a goal too so I am satisfied.
"We are still not 100%
"So we have to keep working hard.
"We have to improve our condition."
Newcastle ended the Premier League Asia Trophy on a high with the slender win.
Muto told NUFC TV: "I am really happy to score but that is my job.
"Every game I have to try to score."