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Lots of issues with my 2011 Model S. Current problem is no power and flashing lights on screen that translate per the manual to "throttle out of range". I just installed a brand new throttle. It did not work before this either, but replaced at recommendation from Zero. So the error message is new, but the problem still the same. No power for the most part, but sometimes it works great. Must be a short or some other problem somewhere. Anyone out there with a similar problem? Located in St. Louis, MO, so no dealer within 300 miles, so I am on my own.

Flashing triangle this morning on my ride in to work flash.flash,pause,flash,flash,flash, pause, repeat. Went out and checked at noon, no more flashes. Talked to Zero about what was happening and they tell me it is a connection problem. I asked about the warmer noon time temp explaining why the problem went away. They asked me about charging and temp. Upshot is that you are not to charge the bike if it is below 20 degrees. This is in the manual. I missed it and have been leaving it in the garage charging when it is down to 10 degrees. Hard to ride in the winter when you can't charge overnight.... I may build a ramp to move the bike into the basement during the winter.

I wonder it this is common knowledge and I was just out of the loop? If not, we need to get the word out.

Although my Zero S is my favorite way to get anywhere, I think that the real problem is finding a market. My friends tend to fall into two categories, the Harley crowd who are convinced my Zero is a toy and those that think that motorcycles are the most dangerous thing on the planet and that I must have a secret death wish. Both groups are wrong, but trying to convince them otherwise has been a lost cause for me. After riding mine most days for almost 18 months and sharing my experience, not a single friend, relative or coworker has given Zero ownership any consideration. I do market research for a living and I use Zero motorcycles as an example of a potentially perfect product: its fun to ride, cuts fuel costs by 90%, quiet, fast, high tech, saves the planet, and despite the benefits-no one seems to want one. Can you imagine a world where 80% of commuters ride electric motorcycles: goodbye traffic jams, pollution, parking lots, highway noise....

Maybe we need a movie like Easy Rider with a nerdy Peter Fonda anti-hero type riding his Zero and introducing the world to new rebellious lifestyle off the grid and full of adventure. Sound exciting...no, and that is the problem.

Thanks for the advice as I would have been up a creek with out it. I had to remove the motor and replace it three times due to issues with the replacement motor.  But in the end with the correct motor, all worked out well. A couple of things that I discovered that weren't obvious. You need to remove the plastic shield on the back side of the motor (power connection side) before trying to remove the motor as otherwise there is not enough space. If you are also replacing the housing that secures the motor to the frame, it can be installed in four axis, but only one works. The one that works is the one that orients the positive terminal (the one with with the red dot) directly above the negative terminal and also has the indention for speedometer housing towards the front of the bike. Zero tends to ship the motors with the housing installed, but there are at least two different housing brackets and if you don't have the right one, you can't install the speedometer housing. Check this before you install the motor as it might save you a few hours work. Also, I recommend checking the motor temperature sensor on the new motor by simply plugging the sensor wire from the bike into the connector on the new motor before you begin. If you have a bad sensor and you don't test, you probably won't find out until you are done replacing the motor and ready for a test run, then you will need to get a new motor and start all over again.

On the third try, I was able to disassemble, replace, reassemble and test drive in three hours. I'm sure that next time, I will be able to do it in two hours.

Sorry to go against the grain, but I don't see much change here. They are providing a larger battery pack, but sacrificing some efficiency. Faster speed, but how many times do you really need to cruise at 95 mph. The bike weighs more, that is probably good on a windy day. Hopefully some improvements went into the electric motors and other problem areas, but there is no mention of that.  I worry about Zero having 3,000 bikes out there with 30 plus different configurations and parts lists and all electric one of a kind. Makes maintenance and reliability almost impossible. I love innovation as much as anyone does, but there are downsides here. I think there is a general consensus among manufacturing types that the learning curve on something this complex is at least 10,000 units. I recommend that Zero freeze their designs for awhile and concentrate on reliability. The coolest technology on the planet is worthless sitting in the garage or shop waiting for repairs.

Not really sure of the cause, but the immediate fix is to replace the motor. Symptoms are surges and stalls that increase in frequency and duration and ultimately lead to grinding noise and total failure. Replace the motor and problems solved. Zero says brush failure and overheating.

I would call or write Richard Kenton (Zero service manager directly)  richard@zeromotorcycles.com. I have dealt with him several times on my Zero S and he tends to make things happen. You may have already dealt with him and had a different experience. There is not a dealer in my market area and I am basically on my own for repairs, recalls, etc. I have had my bike for over a year and now have almost 6K miles on it. I have had a few service issues including a motor replacement that kept me off the road for three weeks. However, I see some of this as the cost for being on the leading edge (and sometimes bleeding edge) of new technology. I would encourage you to hang in there as when they are running well, there is nothing better than a Zero for my needs.

Revived my recall in yesterday's mail 7/20/2012.