2020 250 Pro XS ser. #2B743128
My first set of plugs lasted 148 hrs but I was only using Quickare. After replacing the plugs and reading Don's suggestion on additives I now run Quickare and Quickleen with every tank. How long should I expect the plugs to last now. I noticed my last time out that right after planning off and before trimming up the motor had a brief suttule surge for about 2 seconds. It started doing the same thing but with a more pronounced surge before I changed them at 148 hrs which took care of the surge. My new plugs have 41 hrs on them now. This was my first time out in 5 weeks. Could that be the reason or do I need another set of plugs. Idle is smooth and WOT rpm's are 6000 with a full tank (53 gal).