M1100evo exhaust popping

[TNWINESELLER]

Mine has the termi slipons ecu and air box and seems to pop a lot on deceleration. I was thinking of reflashing the stock ecu to turn off o2 sensor. I like the popping but concerned the lean condition below 4k will shorten engine life. I dont think there is an exhaust leak, just seems to be the nature of the beast

How so?

[lukevo]

How so?

I'm no rocket scientist when it comes to engines but its my understanding that running lean makes the engine run hot. This tends to lead to 'pinging'/'knocking', or preignition. This can cause increased cylinder pressures and heat, and can hammer bearings, prematurley wear rings/ring lands, burn pistons and valves, wear conrods, the list goes on...

I should also add that my bike seem to pops and cackles more now (with the Termi system) than when it was stock. I'm Also keen to check valve clearences now my bike is broken in.