Three years ago I rebuilt a damaged Touring to my own taste. I mixed a lot of selfmade parts with the touring and also bought a variety of parts of the classic. I immediately replaced the airbox with the ramair-filter and after some difficult tuning the bike performes quite okay. There is one point of annoyance, however. Especially when I hit the throttle at low speeds abruptly, the engine sometimes gives recoil through the air filter. I thought the ramair filter caused this but the problem's still there after installing the original filter. It has become less than with the ramair filter, but it still exist. Does anyone recognize this problem?
I changed is back tot de original airbox because i had this theorie that the flow into the ramairfilter isn't stabil enough...i guesed the flow comes from everywhere and mixes up the inlet sensor. I does however not solve the problem. Can it be timing, ignition, sensors (anyone familiar with bad performing air inlet sensor?) or do i miss things?