My bike is having heck of trouble starting, so I decided to change the plugs, but have no idea what to get. I think I want NGK brand, because their not too expensive and a good plug, but my search on bikebandit brings up 12 different kinds. I think the thread width is 10mm, not sure about what depth I need. 93 CBR F2. Plug number will help. Thanks!!

 

CR9EH-9 is what it came with.
CR9EHVX-9 is platinum,is sometimes cheaper than original and lasts longer.
There are different iridiums which can be used,CR9EIX9 being one of them,lasts the longest of these 3.

 

i been using the CR9EIX9 and there great...

 

Thanks! I got the CR9EH-9 at the local parts store for a little better than 5.70 a plug. Great plug. And it was nice seeing "Made in Japan" stamp