Regulating the rim size seems much more logical to me. It’s a number based on reality, vs. tire manufacturer wishy washy logic. Yep, it’s more of a pain to police, but certainly within the realm of doable. That does mean that someone’s going to try the 6.0 width tires on the front, but I think that’s an acceptable tradeoff to using hard restrictions on rims.
So what we’re doing is trading a major shakeup in wheels,tires, testing, stability and possibly package availability, for maybe a couple of theoretical entrants? I’m just not seeing the advantage to solo karting.
I’ve experienced the same sorts of issues on other people’s karts with the pump around. Not sure how to get around it. One unorthodox solution, which I use on my kart is to install a mikuni 1.8mm float needle seat(from, I think a VM34/39) to deal with the fuel pump pressure, and a boyesen “super bowl” to deal with the sticky float issue.
