I'm trying to make a round-based game but how can I fix these issues?

What I want to happen is, once there are two players, the round starts in 20 seconds, then all the players are teleported to either map 1 or map 2, but I have a couple of issues.

here are a few that I noticed.

-player1 spawns in wrong place --not sure if this is a roblox error or not -bikes are same color -sometimes instances are created twice

this is my main script where the "Start" bindableevent is fired when a player joins, there are at least two players, and a game is not in progress

game.ReplicatedStorage.Bindables.Start.Event:Connect(function()
    local MAPS = {"DeadlineMap1","DeadlineMap2"}
    for i = 20, 0, -1 do
        game.ReplicatedStorage.RemoteEvents.Timer:FireAllClients(i)
        wait(1)
    end
    game.ReplicatedStorage.RemoteEvents.GAMETIMER:FireAllClients()
    local MAP_CHOSEN = MAPS[math.random(1,#MAPS)]
    local PLAYERS = game.Players:GetPlayers()
    print("this thing started")
    for _, v in pairs(PLAYERS) do
        PART_COLOR = Instance.new("Color3Value")
        PART_COLOR.Parent = v
        PART_COLOR.Name = "playerColor"
        PART_COLOR.Value = BrickColor.Random().Color
        local I = Instance.new("IntValue")
        I.Parent = v
        I.Name = "I"
        for i = 1, #PLAYERS do
            I.Value = i
        end
    end
    for i = 1,#PLAYERS do
        bike = game.ServerStorage.Deadline["DeadlineBike"..(i)]:Clone()
        for _, colors in pairs(bike:GetChildren()) do
            if colors.Name == "Neon" then
                colors.Color = PART_COLOR.Value
            end
            if colors.Name == "Neon1" then
                colors.Color = PART_COLOR.Value
            end
            if colors.Name == "Neon2" then
                colors.Color = PART_COLOR.Value
            end
            if colors.Name == "Neon3" then
                colors.Color = PART_COLOR.Value
            end
        end
        for _, colormes in pairs(bike.COLOR_ME:GetChildren()) do
            colormes.Color = PART_COLOR.Value
        end
        for _, tires in pairs(bike:GetChildren()) do
            if tires.Name == "Tire" then
                local trail = tires:FindFirstChild("Trail")
                if trail then
                    trail.Color = ColorSequence.new(PART_COLOR.Value, PART_COLOR.Value)
                end
            end
        end
        bike.Parent = workspace
        bike:MakeJoints()
    end
    if MAP_CHOSEN == "DeadlineMap1" then
        print(MAP_CHOSEN.." was selected")
        game.ServerStorage.Deadline.DeadlineMap1:Clone().Parent = workspace
        for _, players in pairs(game.Players:GetPlayers()) do
            local X = math.random(-147.75,148.25)
            local Z = math.random(-154.15,143.85)
            local PlayersPosition = Vector3.new(X,1244,Z)
            local PLR_POS = Instance.new("Vector3Value")
            PLR_POS.Value = PlayersPosition
            PLR_POS.Name = "SpawnPos"
            PLR_POS.Parent = players:WaitForChild("leaderstats")
            players.Character:MoveTo(PlayersPosition)       
            players.Character.Humanoid.JumpPower = 0
            players.Character.Humanoid.WalkSpeed = 1
            bike:SetPrimaryPartCFrame(CFrame.new(players.Character.HumanoidRootPart.Position-Vector3.new(0,6.5,0)))
        end
    elseif MAP_CHOSEN == "DeadlineMap2" then
        print(MAP_CHOSEN.." was selected")
        game.ServerStorage.Deadline.DeadlineMap2:Clone().Parent = workspace
        for _, players in pairs(game.Players:GetPlayers()) do
            local X = math.random(-147.75,148.25)
            local Z = math.random(-154.15,143.85)
            local PlayersPosition = Vector3.new(X,1244,Z)
            local PLR_POS = Instance.new("Vector3Value")
            PLR_POS.Value = PlayersPosition
            PLR_POS.Name = "SpawnPos"
            PLR_POS.Parent = players:WaitForChild("leaderstats")
            players.Character:MoveTo(PlayersPosition)       
            players.Character.Humanoid.JumpPower = 0
            players.Character.Humanoid.WalkSpeed = 1
            bike:SetPrimaryPartCFrame(CFrame.new(players.Character.HumanoidRootPart.Position-Vector3.new(0,6.5,0)))
        end
    end
    for _, plrs in pairs(game.Players:GetPlayers()) do
        local lives = Instance.new("IntValue")
        lives.Name = "Lives"
        lives.Parent = plrs.leaderstats
        lives.Value = 6
        game.ReplicatedStorage.RemoteEvents.TweenGui:FireClient(plrs)
    end
    for i = 1, #PLAYERS do
        game.ReplicatedStorage.RemoteEvents.CreatePlayerLabels:FireAllClients(PLAYERS)
    end
    game.ReplicatedStorage.RemoteEvents.SAddThATColoRBRO:FireAllClients()
end)

game.ReplicatedStorage.RemoteEvents.PlayerDied.OnServerEvent:Connect(function(plr)
    print(plr.Name.." deaded")
    plr.CharacterAdded:Connect(function(char)
        if plr.leaderstats.Lives ~= 0 then
            wait()
            char:MoveTo(plr.leaderstats.SpawnPos.Value)
            local i = plr.I.Value
            bike = game.ServerStorage.Deadline["DeadlineBike"..(i)]:Clone()
            for _, colors in pairs(bike:GetChildren()) do
                if colors.Name == "Neon" then
                    PART_COLOR = plr.playerColor
                    colors.Color = PART_COLOR.Value
                end
                if colors.Name == "Neon1" then
                    colors.Color = PART_COLOR.Value
                end
                if colors.Name == "Neon2" then
                    colors.Color = PART_COLOR.Value
                end
                if colors.Name == "Neon3" then
                    colors.Color = PART_COLOR.Value
                end
            end
            for _, colormes in pairs(bike.COLOR_ME:GetChildren()) do
                colormes.Color = PART_COLOR.Value
            end
            for _, tires in pairs(bike:GetChildren()) do
                if tires.Name == "Tire" then
                    local trail = tires:FindFirstChild("Trail")
                    if trail then
                        trail.Color = ColorSequence.new(PART_COLOR.Value, PART_COLOR.Value)
                    end
                end
            end
            bike:SetPrimaryPartCFrame(CFrame.new(plr.Character.HumanoidRootPart.Position - Vector3.new(0,6,0)))
            bike.Parent = workspace
            bike:MakeJoints()
            plr.Character.Humanoid.JumpPower = 0
        else
            --send message to server that player is out of lives
            game.ReplicatedStorage.RemoteEvents.OutOfLives:FireClient(plr)
        end
    end)
end)

game.ReplicatedStorage.RemoteEvents.RemoteEventNumberNine.OnServerEvent:Connect(function(player, lives, color)
    game.ReplicatedStorage.RemoteEvents.RemoteEventNumberTen:FireAllClients(player, lives, color)
end)

game.ReplicatedStorage.RemoteEvents.SendThatColorBRO.OnServerEvent:Connect(function(player, color)
    game.ReplicatedStorage.RemoteEvents.SendThatColorBackBRO:FireAllClients(player,color)
end)

any help is GREATLY appreciated