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In WWI The Czarist Russia was allied with Japan.
During the Civil War the riverine flotilla temporarily in Soviet hands was either captured by Japanese (and eventually partially scuttled) or scuttled by Soviets themselves without trace in literature of some fight.
Before 1929 China was in turmoil: From 1926 to 1929 the Kuomintang and the Communist Party (both backed by Soviet Union) defeated the Beiyang government (de-facto a coalition of Warlords). I know a Russian author who knows a bit of the later 1929 conflict and could have found trace but i don't think there were significant incidents reported between the Soviets and the Beiyang government before 1929.
On 1929 there was the more famous and significant Sino-Soviet conflict (technically the Chinese were strictly under rule of warlord Zhang Xueliang), when the Amur Flotilla engaged Chinese ships and defeated them in battle.