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Discussion Starter · #1 ·
I need help diagnosing a problem I have been having and would appreciate any suggestions that you guys would have to offer.
Ok so the issue is I bought a 2017 grom a few months back and when I drive it the bike sputters at 6000 rpm in any gear and barely goes above 45 mph. I am a smaller guy weighing about 140 pounds. I have bought new injector and fuel pump. The bike has exhaust, intake, and power commander V. I have reset the codes, ecu, and tps.
There is no rough idle or anything like that so not to sure what to check or adjust next.
 
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