Welcome to the forum Steve, Glad you joined us
I have heard guy's who took two hours to install....I've also heard of guy's who took three day's???
We have alot of members who have never held a wrench in thier hand before and do a great job on installing a kit.
The good thing...you came to the right place. If you have any questions and need a hand...feel free to ask, alway's someone here willing to help out.
Here is a good thread for you to read up on....
Bicycle Motor Preperation And Care 