The kit is pretty straight forward to put together. The only thing that is a bit tricky is the spinner. Mounting the engine can also be a job. One has to shorten the engine shaft and fit a pinion wheel. Did this with a little help from my friend the 60w bulb. I placed the pinion wheel on the bulb for one minute, to let mister heat expand it. Then it slipped right on to the engine shaft, no vice needed.