I think you mean a belt alignment tool.
Normally, if you've put the motor or transmission back in the same spot as was removed, you normally have no issues. Unless you've had some clutch work or other issue.
I took the liberty of looking on the dealers parts fiche and your clutches look an awful lot like Polaris style clutches, so if you know anybody that works on Polaris's you might ask.
As far as belt alignment, have a friend start the machine up in neutral and rev the engine slowly , so you can watch the clutches work, you'll also pay attention to how the belt is riding up on the pulley sheaves, usually centered so it's not riding up on one side or the other. It usually takes a shim or two on the rear clutch to get it right.
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