Didn't work even after hours of tinkering. One disappointed 9 year old. Instructions good and clear Read other similar reviews and it seems kits are variable. Husband sanded rough inner walls of Chambers so pistons would run smoothly. Lights not working properly at last stage Bought sealed and from an individual so couldn't really ask for refund or exchange
Verified purchase: Yes | Condition: New
the engine is simplified but you can explain to your kid or adult students the pinciple of a combustion motor. It will be cool if a day on the same scale and principles, you will have the rest of the car mechanic : gearbox, satelite, differential,...
Verified purchase: Yes | Condition: New
The perfect toy for children/adult that love cars and wants to know how the engine works
Verified purchase: Yes | Condition: New
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