Any recommendation on motorcycle driving school or teaching services in San Francisco? Don't have my own bike.

As a card carrying member of MSF (motorcycle safety foundation) , I recommend taking one their classes. Look on line. They are usually offered at your local community college and they sometimes provide you with training bikes. Good luck and keep the rubber side down....

Best of all, DMV waives the riding part of the test and all you have to do is pass the written part.... be preparred.... chances are that DMV will have you retake your Class C license test as well befor you can get your Class M

+1 on taking an official MSF course.  If you're really desperate, you can take the course on a scooter and still get your M1.

motorcycleschool.com

Highly recommended:

care2ride.net/main.html

Hazel's got the goods. The Bay Area Motorcycle Training program is just what you need.

I took their course before I even decided whether or not to buy a bike. One course in the classroom, and then the rest are out on their bikes. I learned everything I needed to know to feel competent on a motorcycle.

They also help you with the DMV and you will have your riding part of the test waived.

In SF check out Monkey Moto School. It's an option for private lessons and gets you out of the lot as progression allows.
Yes, I am the owner. Please see our reviews here on Yelp.
:-)

I learned how to ride a motorcycle via telephone support.

It was cool, but I wouldn't suggest it for everybody.

Theo "Shockingly Refreshing" R. says:

I learned how to ride a motorcycle via telephone support.

It was cool, but I wouldn't suggest it for everybody.

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Sounds like something out of "The Matrix" :)

Which ever course you decide to take, make sure they are accredited, they provide you with a DMV waiver if you pass, that they provide you with equipment (helmet, gloves, and motorcycle!), and make sure you take care of your permit and insurance stuff within the same time frame.  

If you're not confident on a motorcycle, take the test portion on a scooter.  You'll still get your M1 license but it'll be easier.