Can stress, alcohol, kidney stones, burning urinating, and riding motorcycle affect psa levels?

Maybe: Yes: burning urination may be a sign of an infection, which may raise the psa level no: stress, alcohol, kidney stones maybe: motorbike riding.

Dysuria: Dysuria is the feeling of pain, burning, or discomfort upon urination. Although dysuria frequently indicates the presence of a urinary tract infection (UTI), it can have a variety of causes. Dysuria should always trigger a visit to a health-care professional for evaluation and diagnosis. http://www.emedicinehealth.com/dysuria/article_em.htm#dysuria_overview