Exhaust System; Gearbox; Electronic Shifting Assistant (Esa); Fuel Pump - Rotax 125 MAX DD2 evo Installation Instructions And Operators Manual

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EXHAUST SYSTEM

The exhaust system is designed as resonance system with an after-muffler and repre-
sents a tuned system with engine.
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GEARBOX

The power transmission to the rear axle takes place via manually shiftable integrated 2-
speed gearbox and not as usual, via a maintenance intensive chain drive. Changing the
gear activates the gear shift fork as well as a shifting sleeve, which slides on the hollow
shaft between the 1
The gear is kept in position by an index pin, which keeps the gearshift fork in the selected
position, 1
To allow shifting into 2
off for a moment when actuating the shifting paddle.
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ELECTRONIC SHIFTING ASSISTANT (ESA)

To optimize the shifting from 1
releases load from the gearset and, gear shifting is faster and less stressful for the
gearset.
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FUEL PUMP

The fuel pump functions due to the alternating negative pressure and overpressure in the
crankcase and sucks fuel from the fuel tank into the carburetor via the fuel pump.
In the suction side of the fuel pump (between fuel tank and fuel pump) a fuel filter is in-
stalled to prevent contamination of the fuel pump and carburetor.
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CARBURETOR

The carburetor (DELL'ORTO VHSB 34) is a slide type carburetor with float system. The
standard main jet is suitable for almost all operating conditions. For extreme operating
conditions, the main jet size must be adjusted to the actual conditions according to this
manual.
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Page 4
Edition: September 01 2019
BRP-Rotax
Operators Manual
st and 2 nd gear and then engages in the respective idle gear.
st gear, neutral or 2 nd gear.
nd gear without lifting the foot from the gas pedal, the ignition is cut
st to 2 nd gear, the ignition is interrupted for a short time. This
Effectivity: 125 MAX DD2 evo