IIRC the gas cap is below the level of the grip base, but the two-pronged tubular spanner has a hole for a tommy bar conveniently - which should allow you enough purchase to loosen the gas cap gingerly to release the gas pressure safely.
IIRC the gas cap is below the level of the grip base, but the two-pronged tubular spanner has a hole for a tommy bar conveniently - which should allow you enough purchase to loosen the gas cap gingerly to release the gas pressure safely.