[John Rogers]

I would suggest the following test series.
- Unhook the cable at the throttle pedal and at the carbs.
- Test the carbs to see if they return with a snap when you open them fully and release. Generally there should be at least one spring and preferably two in addition to the ones on the throttle shafts.
- Have someone hold the cable at the carbs and you and them pull the cable back and forth and it should be smooth with no binding.
- With cable unhooked, move the throttle pedal to see how it feels, should be smooth with little resistance. The pedal is a molded assembly that bolts to the floor and it can get terrible stiff also.

Generally it is a good idea to replace the whole cable I.E. inner and outer and even run some lube down in it first or hopefully you lubed the new inner? If any of those are rough or sticky, that is where you need to work.