250cc Vertical Twin?

[98 SNAKE EATER]

Read that the twin is the standard engine on Cyclewerks' Ace (along with a 400 single).

Who make this engine and where can I get details on it?

When I seach for 250cc twin, I get either the typical 250cc single or a V-twin

[JerryHawk250]

Look for a Ninja 250 parallel twin or 300 on ebay. https://www.ebay.com/itm/204224742574?hash=item2f8cbe44ae:g:B80AAOSwXQpi4D4 o&amdata=enc%3AAQAHAAAA4BptrX8gXUP0FDYyYrzb7Nv8anPCM BJJOSBnc18JaRCCMZv0CoGNz0qlR4X1n0VyTbTGg%2FaDzVHhQ htEHWAlTWoOYLkddJ3g%2FU2u%2Bu30OqRNgBScL%2FXL40i4l HH%2FDHPmCbI0g2g5F5GwsQGLsia92GoLPUiSb%2F5DoziwL7X w7NOwEyzc0lDep3pRO4EP%2BGYt%2FZS27n67dfP2cX8SzTL1C nhj4WmPue0Hf0rGJtDFQzmnvpWH5ltto2AmTWOqv1liPeLn8yS uLXbcigj69WPpoQWh5P48KSkJd0hM3UVRhe6I%7Ctkp%3ABFBM gPbwjt5h

[JerryHawk250]

You are probably looking for the old CB250 twin clone. https://www.alibaba.com/product-detail/Motocross-250cc-Twin-Motorcycle-Engine-1_1600605686586.html?spm=a2700.7724857.0.0.24302e0 b12Ty1q

[JerryHawk250]

Here's another one. https://www.alibaba.com/product-detail/Chinese-Cheap-250cc-Engine-Strong-Power_613599494.html

[98 SNAKE EATER]

Is there one with dual exhaust ports?