You must not remove the bolt! If you remove it when you wind the puller in it trys to bind on the inside of the crank. This makes turning the puller very hard and can also ruin the end of the crank shaft. Think what your trying to do girls!

Put the bolt back in and then undo it a turn. Leave it in and then refit the puller. Now the puller will press on the bolt and not bind on the crank. Have a look in the tech section under cranks... its all there and has been for as long as I can remember.
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If I have to take the carbs off once more...