Can cervical spinal stenosis with myelopathy that is bad enough to require surgery because of so much narrowing of spinal canal cause a delay in urination and problems ejaculating? I dont have ED but usually can't "finish" sometimes I can with aggressive

Yes. These are classic symptoms of cervical cord compromise. They are some of the earliest symptoms.
Yes it can and does. Cervical spinal stenosis can affect all function of the spinal cord from the neck down. Imagine that you have a mild form of paralysis. That is what cervical spinal stenosis can do. It affects the spinal cord and therefore your balance, ability to control bowels and bladder, coordination, sensation in other words everything. If your surgeon told you this is your problem get it fixed Soon!