Hey guys I have a Vulcan 1500cc 2004 FI
It's eating spark plugs ? I have modified intake with vacuum cable for throttle open!!
The plugs are black and very high fuel consumption smell fuel from exhaust but it runs great!!
Any ides?
You changed the air box (intake)... do you still have the oem exhaust?
Usually, if you only modify the exhaust, or the intake the EFI will compensate adequately. However, when I changed out my exhaust I got decel popping and had to add an aftermarket add-on FI box (cobra 2000). You may need to do the same thing...
I had the same problem the plugs were black all I did was get a one up hotter plug and that fixed it the plugs now look perfect.