O.S. Engines 91SZ-H PS Hyper - Manual (Page 5)

8
Note on heating the glow plug
The heatsink head on the engine is
treated with Alumite which does not
conduct current. Therefore, when
heating a glow plug, connect one
lead to the glow plug and the other
to the head of cover plate retaining
screw.
Example
9
This is a high performance engine
expressly designed for 3D flight with 90
size helicopters basing on the MAX-91SZ-H
RING and equipping O.S.'s original PD-07
pump and regulator system. The pump
feeds fuel stably irrespective of violent
changes in model attitude and the regulator
regulates fuel pressure from the pump
keeping the pressure at a set level.
The 60M-P carburetor with twin needles
enables adjustment of idling, hovering and
the 'in air flight' independently.
INTRODUCTION
Standard accessories
Glow Plug No.8
Woodruff Key
Needle Adjusting Screw (M2.6x5 2pcs.)
Instruction manual
Carburetor Complete 60M-P
Note:
As delivered, the carburetor is not
installed on the engine. Install the
carburetor securely on the engine
referring to the INSTALLATION OF THE
CARBURETOR section.
Carburetor Rubber Gasket
Carburetor Retainer Assembly
(M2.6x18)
Head Gasket
0.2mm 0.1mm