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I installed the dhm stage 3 kit on a 2022 grom. Installed everything correctly and gapped the rings and valve lash to spec. Bike runs great except has lean popping on deceleration with throttle cracked slightly. Bike runs great and has no holes in the power. I have run this kit on older sf groms and has no condition like this. I did run the bike for about 25 miles at this point so the ecu has definitely had time to adjust the trims some.
Bike has the chimera short ram intake and a leovince lv10 exhaust without the baffle. Ran fine before the install.
Anyone else had issue like this? I sent David and email this weekend but dont have his input yet..
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- 9 months ago
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