This 4 valve, 62mm bore x 62 mm stroke engine is the newest edition directly from Daytona Motor Co. The new FDX-190 comes stock with an updated close-ratio transmission, an AUTO-DECOMPRESSION CAMSHAFT and reinforced crankcases. 
The FDX motor is manufactured and assembled as a 190 at the Daytona factory. 

Includes:
(1) Daytona FDX 190 Engine
(1) Intake Manifold
(1) Wire Harness
(1) CDI: (4 selectable timing settings & 5 selectable Rev Limiter settings)
(1) Ignition Coil
(1) Intake manifold carb boot

*Daytona crate engines do not come with any warranty*

Users manual available here https://daytona-global.com/products/pdf/87615.pdf
 

Starting pit bike engines will take some practice. All pit bike engines have relatively high compression ratios and require a "quality over quantity " approach in order to ensure quick start ups and avoid mechanical mishaps. It is important follow this routine the first few times when first attempting to start your bike.