Throttle lever on carberator won't spring fully back
I have disconnected both the accelerator and deceleration cables from the carb. Even so, the throttle lever on the carb will only return about 2/3 the it's distance and stop. I can easily push it the remains 1/3 with my finger feeling no resistance. I think the spring on the throttle lever is the only force pushing it back. Is it possible that this spring has become weak or is there something else I should look at? If it is the spring can it be replaced without pulling the carbs off the bike?