021 throttle

[motorboy]

Finally got my 021 going the other day after i bought a used coil. So far I like everything about it. I was cutting some limbs up to chip up today and noticed if I let it idle for a while than get back into the throttle, it sometimes stalls. I am pretty sure that this is just in need of a low speed adjustment but would it need to be richer or leaner? I also have another 021 that needs a clutch cover, anyone have one laying around that they don't need?

Thanks.

Branden