Modern Vespa

Hi

After installing some 8.1 along with the tecnigas maxi4 I've retrieve some torque at 15mph. The acceleration is somehow slow and at 20mph I feel the scooter going good. I disconnected the SAS or if I may I block it so the valve don't activate. I still got some pops on decelerating .. do you think I'm running little lean with the tecnigas with a 84 I think oem for the keihin 26.

Thanks

I can't help because i have no knowledge/experiences of CVT scooters but is it worth just having the one topic about your exhaust change and ongoing issues rather than starting a new topic for each one. That way, all the information is to hand on what youve changed, what troubleshooting youve done etc.

It may be just easier to reconnect the SAS to eliminate the decel popping. Just saying....

I thought the SAS was causing this..

You may want to check the whole SAS to see if you have any air leaks. But you may be right, it may be causing it, but I'm guessing most vehicle inspections would require that is hooked up and working as it contributes to keeping the air pollution down.