Sounds to me like you bought a motor that is set up with a regulator to run and electrical charging system.
It will need a signal from the battery to say that things are powered up and its all good to make spark so it can start.
Your options are to find a wirirng diagram and fill in the missing bits and fit it up on the Colt with a battery and switch etc. In otherwords, finish the rest of the wiring system thats missing.
Or find a wiring diagram and remove the offending regualted battery stuff so that its just the basic 'i can make spark any time, earth me out to stop' system that a Colt or regular push mower runs.
Im not sure how you would do either but with some research im sure it will be sorted out fairly easily.
On another note. The motors ive seen on colts have a very short 7/8th shaft. What shaft does that motor that you bought have?? Its it a longer 1" i dod not think it will fit.
If it is the longer one that steps down from 1" to 7/8ths. You may need to space the engine up to be able to use it on the Colt.
Shaft length is measured from the face that bolts to the deck, not the housing. Easily accurately measured with two steel rulers that are square on the ends. One up from the flange on the engine, the other laying across the end of the shaft to make a right angle with the rulers.
You are no schmuck, you got them to start it for you, if you can not hear it go it does not go no matter what promises are made.
A bit of extra advice, I would suggest that you check the oil level and make sure its full before they start it for you. an engine with no oil wont blow smoke.
People think, its just a mower, they are all the same. They are not, they are all very different in their own little ways.
