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ROTAX FR125 MAX ENGINE
The sensation
in karting worldwide is the incredible water
cooled Rotax FR125 Max engine. Designed for both the racing
and recreational markets, the engine combines the best of
both worlds. Engineered and manufactured by one the world's
leading racing kart engine producers it has a true race
pedigree, producing over 28 horsepower, while the unique
simplicity and self-starter provides the ultimate in
hassle-free karting.
It can easily be mounted to almost any kart chassis with a
simple kit available, giving anyone the chance to experience
the renowned power and reliability of Rotax.
Bore: 54.0mm
Stroke: 54.5mm
Weight: 12kg
28 horsepower @ 11,500rpm
Download the exploded
diagrams with numbered parts for easy cross reference.
If you would like more information regarding this product
please
contact us.
IMPORTANT INFORMATION
OIL/FUEL RATIO FOR ROTAX MAX FR125 ENGINES
The Rotax Max FR125 engine has
revolutionised karting with its ease of use, long life
between rebuilds and its incredible reliability, however
like every engine, sometimes things can go wrong. The most
common failure we see is the big end and although it is
still comparatively uncommon, it is arguably the weak point
of the engine.
In an effort to reduce the incidence of conrod big end
failures, Rotax has advised the following important change:
At ambient temperatures of 25C and above, Rotax generally
recommend a fuel /oil ratio of 33:1
(=3% or 0,3 litres of oil per 10 litres of fuel)
Note : This applies all of the time, not just when running
in.
N.B. For temperatures below
25C, a fuel/oil ratio of 50:1 is still recommended.
To further reduce the
likelihood of failure, Rotax have also made other changes
such as releasing new run in procedure instructions,
revision of the tolerance band of the radial clearance of
the crankshaft and reducing the tolerance on the big end
cage. Rotax will continue to test various components in
house and monitor the conrod failure.
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70 Hull Road Croydon
Vic Aus 3136 ~ Phone 03 9733 0909 - 0410 513 061 Please call
between 9am – 8pm, 7 Days ~ Shop hours between 5pm – 8pm, 7 Days 
Rotax
Engines
are
arguably the most recognised name in kart engines. Legendary for
their power and reliability, Rotax is the first choice for the
driver who wants the ultimate in performance.