Normal
A 65 doesn't even start pulling until about 10,000 rpm. If the kid wants the bike to even move, he WILL be "rapping it out" as you put it. A 65 is "lugging" at a higher rpm than a 250T will even rev to.I wouldn't run less than 32:1 in a 65 for a really slow rider. A fast kid on a 65 would be getting 20:1 if it were me.Your mix ratio has absolutely NOTHING to do with spooge and plug fouling. If you have a spooge problem or foul plugs, barring any mechanical issues such as bad reeds, your jetting is wrong for the conditions. I can go mix up a batch of 18:1 for my KX250, and with five minutes of brass changes I will have a dry tail pipe and a perfect plug color.
A 65 doesn't even start pulling until about 10,000 rpm. If the kid wants the bike to even move, he WILL be "rapping it out" as you put it. A 65 is "lugging" at a higher rpm than a 250T will even rev to.
I wouldn't run less than 32:1 in a 65 for a really slow rider. A fast kid on a 65 would be getting 20:1 if it were me.
Your mix ratio has absolutely NOTHING to do with spooge and plug fouling. If you have a spooge problem or foul plugs, barring any mechanical issues such as bad reeds, your jetting is wrong for the conditions. I can go mix up a batch of 18:1 for my KX250, and with five minutes of brass changes I will have a dry tail pipe and a perfect plug color.
