how often do you change them?

 

check them every couple of months or whenever u feel like your motor isnt running like u think it should

http://www.spark-plugs.co.uk/p...s.htm
how to tell how ur motor is running by the spark plug

 

It's in your owner's manual. If you do not have an owner's manual, then go to https://techinfo.honda.com/rjanisis/logon.asp. On the left, click on "Owner's Manuals." Follow the pointers. Once you arrive at the pdf file, it may appear that only one page has come up. In fact, page numbers that are highlighted within the pdf file are links on which you can click to take you to the page. Also, in the upper right hand corner of any white page look for an arrow. Click the right arrow to get to the next page. Lastly, pressing "Ctrl-A" will permit easier reading of some of the pages at this site.

Use only the spark plug brand your owner's manual recommends. Doing otherwise can hurt performance.

 

ncie link on the spark plugs turbo..

 

generally speaking with honda's and almost every other manufacturer that recommends the standard conventional plugs is 30k miles.

 

since they are like 10 bucks a set for NGK, taking 15 minutes once a year to change them shouldn't even be a question.