Increased idle issue

[jvincig01]

I have an F145 engine with a Weber carb. I've noticed that when I pull up to a stop sign/light, push in the clutch, the engine starts to rev. I tap the throttle to give it a little gas, and it returns to a normal idle. It's super annoying.

I checked the linkage, and it seems smooth. If not the linkage, what could it be?

 

[charliemeyer007]

Stronger return spring might fix it. Perhaps bushing in linkages and the carb are corroded, spray everything with carb cleaner. Then put some good oil on them - sewing machine resists gumming up.

 

[jvincig01]

Oddly I do not have a return spring?