What Engine model Do I Have?

Discussion in 'Motorized Bicycle Trouble Shooting' started by Joshua_ schwinn_lowrider, Jul 4, 2016.

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  1. Joshua_ schwinn_lowrider

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    I was here a while ago talking about how I ruined my engine & needed a top end rebuild - the ebay vendor f*ed up & I'm just going to buy another 'nother one.

    The thought came though about how to know what model engine I have? I'm seeing stuff on eBay marked Set H CK19, 66-80cc and 47mm.

    If I could use this as an opportunity to increase from 70 - 80cc that would be great - just how to know what will be compatible.

    That is what I would like to know basically :>

    Cheers Guys.

    :-||
     
  2. Greg58

    Greg58 Well-Known Member

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    The typical large version engine is a 66cc with a 47mm bore and 38mm stroke, the next larger version is a 68.5-69cc which is 47mm x 40mm. In order to go bigger you'll have to change the crankshaft to a 40mm type. There is no 80cc engine, that's only selling hype.
     
  3. Tyler6357

    Tyler6357 Well-Known Member

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