Removal Of The Intake Socket And Reed Valve; Removal Of The Exhaust Valve - Rotax 125 MAX evo 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
______________________________________________________
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
BRP-Rotax
REPAIR MANUAL
Allen screw M6x25 with hole for sealing
1
the engine
Support bracket
3
Reed valve assy.
5
2 Allen screw M6x25
4 Intake socket
6 Gasket
Effectivity: 125 MAX evo, Junior MAX
evo, Mini MAX evo, Micro MAX evo
Edition - February 01 2018 /Rev. 0