Thinking more about why this happened I'm concluding the SIP air filter was the culprit. We've had our share of drama just getting the air filter to fit having to resort to the DRT spacer which is excellent. On Saturday when I tested the 48-100 pilot is when I discovered the broken SIP filter. Not sure if the failure of the filter introduced any particles and maybe began some damage maybe. What I believe the SIP filter caused me to do was compensate the jetting for the SIP filter. I was confused why my main jet was what seemed small but now think this was due to the air availability with the SIP filter. It must have taken some serious forces for the steel mesh to fail like that. Air needed to get IN somehow.
When I installed the Piaggio filter it felt like it revved easier. For the wrong reasons I attributed this more to the pilot jet change. Did a blow test on the filters last night which is why I'm on this theory could barely blow air through the SIP filter but air o plenty through the Piaggio filter. So based on this its my thinking the SIP filter was suffocating the carb down and I compensated the jetting. New air filter shows this on 10 mile plug. I was hoping that color was just too few miles but on reflection it was real.
When I was ordering the filter was unable to find a Piaggio filter from SIP or ScooterCenter so I ordered the SIP version. When I got it immediately did not like it did not like the steel mesh. I do not know why I did not like it just that it was not the same as the Piaggio filter I have on my GL and I'm stubborn that way. Now I know why I do not like the SIP T5 filter. If anyone has one of these filters I'd be suspicious. Anyone have a source for an authentic Piaggio T5 air filter?
SIP T5 air filter
Piaggio T5 air filter