hey, i've got a pinto running the 64cc polini, 14mm bing jetted at 90, with a techno boss with a mixture of 32:1. i had about 60 miles on it and started opening it up more and letting it back down gently. did that about 3 times, stopped and was then going at a slightly higher cruising speed (around 35) when i soft seized. anyone got any input? did i just run it too hard, too soon? thanks.