O.S. Engines 21XZ-M - Manual (Page 5)

8
GUARANTEE
This engine is constructed from the very
best materials available and to the very
highest engineering standards, using
the most advanced precision machinery.
However, the extremely high stresses
imposed by car racing operation under
very severe conditions, as well as
stresses which are exacerbated by the
use of powerful fuels containing very
high concentrations of nitromethane,
constitute hazards which are beyond a
manufacturer's control. Accordingly, we
regret that it is not possible to extend
our usual warranty terms to this
particular engine -i.e. no guarantee is
offered against material wear, or damage
resulting from, actual use.
As delivered, the engine has the
carburetor lightly fit into its intake.
Secure it changing its angle according
to the hull.
NOTE
NOTES ON OPERATION
We do not recommend running your boat
on the sea, or in any other saltwater
environment. Under such conditions, it is
difficult to prevent the engine from
becoming corroded and, eventually,
inoperative.
NOTE
9
ABOUT THE ENGINE
Standard accessories
Glow Plug RP7 For T-type head
(Turbo head) 1piece
Cylinder-head gasket
(0.2mm) 1 sheet
Exhaust Seal Ring 1piece
Dust Cap 3, 16, 18
1piece each
The MAX-21XZ-M is designed expressly for
21 class boat racing, basing on the race
proven MAX-21XZ-R on road car racing
engine.
The big bore of 10mm 21D carburetor
copes with high nitro fuel.
This engine offers high racing potential
maintaining O.S. traditional easy-to-handle
characteristics. Head Gaskets
The engine comes with a o.2mm and 0.1mm
thick head gasket installed. If you find the
following symptoms after running the engine,
add a 0.2mm thick gasket supplied.
With the appropriate needle setting, engine
r.p.m. drop and power loss during running.
Composition and proportion of lubricant in the
fuel may affect the symptoms.
Glow plug burns out frequently.