Zenoah 26cc BH Hanson Modified Pro Gas Heli Engine

Some features of the Hanson por ZG 26ccm engine :
New cylinder for considerably more power and efficient cooling.
 
Very thin piston ring for minimal friction and maximum power.
 
Magneto-electronic ignition with separate power coil and ignition coil, giving maximum
power and smooth running.
 
Small Champion spark plug RZ7C with 10 mm thread.
 
Compact diecast crankcase.
 
Double counterbalanced crankshaft, very accurately aligned for the necessary concentric running,
supported in three ballbearings. Needle roller bearings in conrod.
 
Walbro carburetor fitted with a priming pump to fill the carburetor for starting and a efficient airfilter
intake silencer with integrated choke flap.

Robust pullcord starter
 

Pro Heli Engine - Pump bulb carburetor, lightened ported piston, balanced flywheel and blue printed cylinder.