Track Day Winner
Join Date: Mar 2018
Location: New Zealand
Motorcycle: 2018 GSXR750L8 Metallic Triton Blue
Re: Sparkplugs are these new or 20,000ks old
Looks like the wrong plugs to me, they should be Iridium or Platinum and they have a fine wire center electrode so they are NOT the factory recommended replacement.
The crush washer on them is not flat, did they even bother to torque those plugs up ?
Your also going to get much higher mileage out of the stock plugs and because swapping them is not a 5 minute job, your going to want them to be almost " Fit and forget".
I wouldn't be rushing back to that "Mechanic" in a hurry.
Last edited by Carlos67; 06-09-2018 at 04:37 PM.