Will your clutch slack increase in heavy traffic?

[pantone]

I had run my bike for 20K km. I had felt many times, mostly in heavy traffic, the clutch slack will increase gradually. I had thought this happened because the return spring for the clutch is very close to the engine body, and in heavy traffic as the engine temperature is high, the spring force will decrease due to the the temperature rise of the spring materail. What do you think?

 

[Motogiro]

I think that if the clutch lever feels easier to pull in when you're in traffic and the ambient temperatures are higher on and around the bike that you are experiencing gummed up lubricants in the cable. As the temperature rises the gum gets easier to move. Clean and lube your cables.