Review on NGK (6289) CR9EIA-9 Laser Iridium Spark Plug, Single Pack by Jyothish Pillai
They are OEM for Vulcan s.
These spark plugs break badly on Vulcans. I found that according to the service manual I had to replace them every 7,000 miles. Given that they last as long as the service interval requires, I think this is enough.
Pros
- Free for educational purposes
Cons
- Miscellaneous Miscellaneous
