What Engine model Do I Have?

[Joshua_ schwinn_lowrider]

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.

 

[Greg58]

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.

 

[Tyler6357]

Here are some videos to help you ID your motor. There are no universal terms for these motors and people call them by different names. This will kinda help explain the differences.

https://www.youtube.com/watch?v=rzLWYSlpFEg

https://www.youtube.com/watch?v=MMZqayAYsWo