06-13-2018, 08:32 AM
Hey All,
I've been tinkering and refitted the OEM Muffler to my bike.
I've been running with my lovely Over end can but but as I'm planning a trip or two soon, with a pillion, decided that a bit of peace and quiet might be nice ;-)
I'm actually loving the original can again! It's so smooth and it just purrs along. I'm running it on the end of my Arrow Cat Free 4-1, which was already fitted to the bike.
I've got a PCv and Auto Tune fitted, so I'm not too concerned about the fuelling, but wondered which way, if any, I should expect to see the fuelling go?
The flow of exhaust gas, I'm assuming, must be restricted with the Stock Muffler. Should this make the bike run lean or rich?
I ask as last time I went to the Dyno, after fitting air box mods and a cat free header with the Over muffler, I expected to see the bike running lean and was told that it was the opposite. The person at the tuners said that opening up the air box and exhaust would make the bike run rich and they'd had to lean it off. Not what I expected to hear.
So, that said, should I be expecting to richen it up after fitting the restricted, stock muffler?
What do you reckon?
I've been tinkering and refitted the OEM Muffler to my bike.
I've been running with my lovely Over end can but but as I'm planning a trip or two soon, with a pillion, decided that a bit of peace and quiet might be nice ;-)
I'm actually loving the original can again! It's so smooth and it just purrs along. I'm running it on the end of my Arrow Cat Free 4-1, which was already fitted to the bike.
I've got a PCv and Auto Tune fitted, so I'm not too concerned about the fuelling, but wondered which way, if any, I should expect to see the fuelling go?
The flow of exhaust gas, I'm assuming, must be restricted with the Stock Muffler. Should this make the bike run lean or rich?
I ask as last time I went to the Dyno, after fitting air box mods and a cat free header with the Over muffler, I expected to see the bike running lean and was told that it was the opposite. The person at the tuners said that opening up the air box and exhaust would make the bike run rich and they'd had to lean it off. Not what I expected to hear.
So, that said, should I be expecting to richen it up after fitting the restricted, stock muffler?
What do you reckon?