UM GP1 discussions

2010 UM GP1-R 50. Picture submitted by anonymous user.	Discuss the UM GP1 models without registering or logging in. Simply enter questions, comments or answers. We specially welcome comments on technical issues, riders' experiences, tips on styling and performance enhancements and references to tests. You may also sell or request parts. Use the button below to write extensive reviews with pictures.
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Discussion topics for UM GP1 motorcycles:

Spark Plug? (By Gavin, 2024-10-27)
problems with charging after reverse battery. (By tony knaubert, 2010-09-08)

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Discussion forums for individual UM GP1 motorcycles:

2010 UM GP1-R 50 (Scooter, 49 ccm)
2010 UM GP1-R 125 (Scooter, 125 ccm)

2010 UM GP1-R 150 (Scooter, 150 ccm)
2009 UM GP1R-150 (Scooter, 149 ccm)

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