G'day Speedy and Widget

Yes it's always a good idea to straighten a cable
If the bends have created resistance for the inner
Cable to move freely.

Nothing wrong with removing the cable to straighten but
I use a quicker way and bend the inner and outer cables straight by hand without removing the inner cable ,it just takes a little practice .

Sometimes I will put a slight bend in a cable if the vibration
Of the motor is making the throttle move by itself.

Cheers
Max.