Help me weld the other parts in the model?

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()


Mouse.KeyDown:connect(function(key)
if key == "p" then

local RinkakuModel = game.ReplicatedStorage.WorkspaceRinkakuModel:Clone() 
game.ReplicatedStorage.WorkspaceRinkakuModel.PrimaryPart = game.ReplicatedStorage.WorkspaceRinkakuModel.Primary


local   w = Instance.new('Weld')
w.Part0 = RinkakuModel.PrimaryPart
w.Part1 = Player.Character.Torso
w.Parent = RinkakuModel.PrimaryPart
w.C0 = CFrame.new(0, 0, 0)
w.C0 = CFrame.Angles(0, 0, 0)*CFrame.new(0, 0, 0)

RinkakuModel.Parent = Player.Character
RinkakuModel:SetPrimaryPartCFrame(Player.Character.Torso.CFrame*CFrame.new(0, 0, 0))
game.ReplicatedStorage.WorkspaceRinkakuModel:MakeJoints()
RinkakuModel:MakeJoints()
RinkakuModel.Name = Player.Name

end
    end)

All of the model should weld onto my torso when I press p but for some reason only the PrimaryPart in the model welds to my torso even though it is said that when the PrimaryPart in a model is moved so does the rest of the model. So how do I move all of the model from the Primary Part, Is it because it isnt welded to the rest of the parts in the model?