K klim-in Active member Lifetime Membership Nov 21, 2009 #1 This has been brought up before but wanted to know what others are using now for spark plugs now for best performance today. And if anyone else is using the Yamaha fuel additive and is is working good for others. Thanks in advance.
This has been brought up before but wanted to know what others are using now for spark plugs now for best performance today. And if anyone else is using the Yamaha fuel additive and is is working good for others. Thanks in advance.
