So ports left and right of main exhaust are maximising the port area at full revs.
Try to imagine you want to get the exhaust gas out as quick as possible at top of stroke at full noise.
At lower revs that would promote short ccting.
Brain is full of different systems from previous bikes, but the additional opening to the closed box on side of cylinder should be a low Rev thing.
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'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
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