Search: Interactive Product Manual What is the spark plug Gap on my mower? The spark plug gap on your mower Insight or Inight Gold Mower is .030 or (.076mm).  If you do not have an Insight or Insight Gold mower please check your Owner's Manual  for the proper gap. For instructions on on how to gap the spark please visit our Interactive Product Manual for step by step instructions. < Back Did this answer your question? Yes, this solved my problem No, I need more help Please find me a dealer or service center        Need help printing?     © 2008, Lawn-Boy    Terms of Use / PRIVACY