These Grom clones really do pickup after 300 - 500 mile break in period ,the difference is really noticeable. I'm not a fan of the stock carb but yes they can be made to be reliable and run okay , mine ran fine out of the box with the stock carb ,it just ran even better after changing it, but it's all personal preference.
The valve lash I suspect is the actual culprit behind many perceived " carb issues "
I have seen them all over the spectrum from the factory. All in all i love mine, wouldn't get rid of it for the world way too much fun per dollar.
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2001 Mustang GT
2004 Sportster
2018 VADER
2020 Orion RXB250L
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