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Rotax 125 MAX evo Repair Manual

Rotax 125 MAX evo
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BRP-Rotax
REPAIR MANUAL
REMOVAL OF THE INTAKE SOCKET AND REED VALVE
Instruction
1. Remove support bracket (3) and intake socket (4) by loosing the 5 Allen screws M6x25 (1)
(2).
2. Remove the reed valve (5) and gasket (6) from the cylinder.
Figure 4.7: Intake socket, Reed valve
1
Allen screw M6x25 with hole for sealing
the engine
2 Allen screw M6x25
3
Support bracket
4 Intake socket
5
Reed valve assy.
6 Gasket
______________________________________________________
REMOVAL OF THE EXHAUST VALVE (125 MAX ONLY)
General The engine has an electronically controlled magnet valve which is opening and closing at
a certain rpm defined by the ECU. The opening rpm can be set to following:
7900 rpm if the additional ground cable on the battery box is disconnected.
7600 rpm if the additional ground cable is connected to the battery box.
The closed valve improves the performance in the low and mid range. In the upper rpm
range the valve opens to reduce flow resistance of the exhaust gases. For a detailed ex-
planation please visit our website and watch our animated video that will explain the func-
tion in detail: https://www.rotax-kart.com/de/Community/Videos/Rotax-125-MAX-evo-
Engines/124-Rotax-E-RAVE
Chapter 4
Page 8
Effectivity: 125 MAX evo, Junior MAX
evo, Mini MAX evo, Micro MAX evo
Edition - February 01 2018 /Rev. 0

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Rotax 125 MAX evo Specifications

General IconGeneral
BrandRotax
Model125 MAX evo
CategoryEngine
LanguageEnglish

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