Hoosier Daddy
Earache my eye...
Waving an unlit propane torch around them to check for leaks will only raise the idle if the carbs are properly tuned or running lean... if the bike is running rich it won't change. Granted if the boots are cracked it should be running lean, but if someone has adjusted to compensate for it, that could mask what you are looking for.
Back in my early Auto-tech days when cars still had carbs ( : ) that is how we set the idle mixture screws, a quick shot down the carb would raise the idle about 50-80 rpm if you had it adjusted right.
Back in my early Auto-tech days when cars still had carbs ( : ) that is how we set the idle mixture screws, a quick shot down the carb would raise the idle about 50-80 rpm if you had it adjusted right.