# 2008 GEM E6 only goes 18 MPH on High **URL:** \ **Category:** GEM Forum\ **Created:** [October 12, 2018, 2:06pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700 "2018-10-12T14:06:39Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 12, 2018, 2:06pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/1 "2018-10-12T14:06:39Z")
I recently purchased a 2008 GEM E6 6 passenger that I am in the process of restoring. It was used as an Island Taxi and was fairly beat up when I purchased it. I installed new lead acid batteries because there was none in it when I purchased and wanted to make sure it would run before investing heavily into it. After cleaning the motor brushes i did get it running, however it will not go past 18 MPH on hign but will do 16 MPH in low. I did also discover it has a MZ Motorsports 8.3 HP motor, class H 4835 RPM rating. Even jacked up on stands it will not go past 18, and it seems to wine really loud at this speed?. I live on a small island outside of Savannah GA that is only about 7 miles long and has no hills. I am not looking to run 40 MPH but i don’t want to get run over in a 35 MPH speed zone! I did speak with Ride for Fun and from what I understand the controllers on 2008 models are hard coded so I don’t think it is a programming issue, but really not sure where to start . Thanks in advance for the help on this. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [October 12, 2018, 2:15pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/2 "2018-10-12T14:15:46Z")
Does it plug at 18mph? (hold back) I believe it can be programmed for lower speed. ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [October 12, 2018, 2:27pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/3 "2018-10-12T14:27:47Z")
The controller may need reprogramming. If it was used in commercial service it may be program limited to 18 MPH. ---
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 12, 2018, 2:50pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/4 "2018-10-12T14:50:35Z")
Yes it seems to, in the low speed it will bounce between 15 and 16 MPH, but in high it seems to lock in at 18 and stays there. Maybe I am incorrect about the programming on my controller? ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [October 15, 2018, 7:52pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/5 "2018-10-15T19:52:32Z")
2008 are programmable . my guess is previous owner programmed in lower top speed to keep his drivers from going too fast ---
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 15, 2018, 8:43pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/6 "2018-10-15T20:43:57Z")
SOOOO now i get to figure out how to reprogram the controller, always more fun! ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [October 15, 2018, 10:03pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/7 "2018-10-15T22:03:11Z")
If only the speed turned down a MM might fix it. ---
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 29, 2018, 1:29pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/8 "2018-10-29T13:29:02Z")
SOOOO the plot thickens… I did purchase the MM and just had sometime yesterday to install and test out. I charged the batteries and installed the MM and drove it using GPS for seed and got the exact same results 16 MPH?? I stopped and took the MM out and drove it some more and same speed without it. Now I am at a complete loss as to whats next. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [October 29, 2018, 2:14pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/9 "2018-10-29T14:14:59Z")
Did the MM change the speedometer reading? ---
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 29, 2018, 3:56pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/10 "2018-10-29T15:56:05Z")
Yes I did notice it was reading around 11 MPH while I had it installed. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [October 29, 2018, 6:44pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/11 "2018-10-29T18:44:32Z")
Seems like it is doing what it is meant to. You can return it if you like. What does it do in turf mode? ---
**Author:** ![Bmmoore42](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Bmmoore42](https://community.electricforum.com/u/Bmmoore42)\ **Post date:** [October 30, 2018, 12:38pm UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/12 "2018-10-30T12:38:11Z")
No i will keep the MM, just don’t understand why I am having issues getting speed out of the car. I will have sometime this weekend and will install it again and see what it does on turf mode and report back. I may have to invest int he software to reprogram it as well. Thanks ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [November 5, 2018, 10:07am UTC](https://community.electricforum.com/t/2008-gem-e6-only-goes-18-mph-on-high/14700/13 "2018-11-05T10:07:45Z")
check your wiring on switch . some people wire the switch so that low and high are the same to limit top speed .