Re: Removing pedals off motorised bike and adding pull start
If the chain is in alignment and properly tensioned it will not move.
I do remove 7 speed and use BMX freewheel. 26" wheel with BMX 16t? and middle chain wheel on front gives fairly tall gearing though, and 28t on front gives rather low gearing.
It may also require recentering of the rear rim to hub to get chain alignment?
Or you can leave an old derailleur on there locked in position and that will save a few hassles.