Symptoms of Kawasaki disease:
Kawasaki disease can't be prevented, but usually has telltale symptoms and signs that appear in phases.
The first phase, which can last for up to 2 weeks, usually involves a persistent fever higher than 104°F (39°C) and lasts for at least 5 days.
Other symptoms that typically develop include:
severe redness in the eyes
a rash on the stomach, chest, and genitals
red, dry, cracked lips
swollen tongue with a white coating and big red bumps
sore, irritated throat
swollen palms of the hands and soles of the feet with a purple-red color
swollen lymph nodes
During the second phase, which usually begins within 2 weeks of when the fever started, the skin on the hands and feet may begin to peel in large pieces. The child also may experience joint pain, diarrhea, vomiting, or abdominal pain. If your child shows any of these symptoms, call your doctor.
From what you have described his fever is not persistently high (which btw could also be symptom of pneumonia and other diseases), you have not mentioned severe redness in eyes, rash on stomach, chest, genitals etc. etc. The symptoms you have mentioned are more the general symptoms seen with a whole range of viruses including the flu virus.