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Bike engine . Want to add two similar bike engine on a single shaft (https://i.stack.imgur.com/qMN5u.jpg)enter image description here

closed as too broad by raydowe, Rory Alsop, MooseLucifer, Chenmunka, anonymous2 Aug 23 '17 at 11:31

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • What have you considered so far? how will you mount the engines - have you checked that the direction of rotation will match etc – Solar Mike Aug 22 '17 at 14:56
  • @SolarMike I will use both the engine s of same motorcycle company , will tune same average and weld the gears of both engine and then connect the engines to the shaft through the chains. – Nadéèm Khan Aug 22 '17 at 15:01
  • draw a diagram to show what you mean especially consider the engine orientation. – Solar Mike Aug 22 '17 at 15:11
  • Google Hogslayer. – Mysterfxit Aug 23 '17 at 4:14
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    The orientation of the crankshafts relative to each other is crucial. You can't just connect them at a random point; the resulting harmonics and vibration might literally rip the engine(s) apart. That appears to be a single cylinder -- I would suggest the firings be together, or alternating (360 degrees) apart for a four-stroke. You could make them 90 or 180 if you want your project to act like a Harley Davidson, but a Harley is a perfect example why you shouldn't fire both cylinders without respecting the timing. – SteveRacer Aug 23 '17 at 5:22
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I found this article pretty quickly. It's an entire project about exactly that - how to run 2 IC engines together. There's way too much information for me to even decide what to quote, but it's all about the subject of running 2 engines.

  • This should be posted as a comment. – Solar Mike Aug 23 '17 at 5:33

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