Name: Rotax 125 Max
Brand: Rotax
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DK00026.fm

REPAIR MANUAL

BRP-Powertrain

Effectivity: 125 MAX/125 Junior MAX/125 Mini

MAX/125 Micro MAX

Edition 2 / Rev. 0

Chapter 4

Page 21

December 01/2010

3.8) Inspection of exhaust valve (125 MAX only)

Instructions See Figure 15.

Graphic Removal of exhaust valve (125 MAX only)

Figure 15 K00023

Step Procedure

1 Clean oil or oil deposits from all parts with a suitable cleaning agent.

2 Check the smooth movement of the exhaust valve (1) in the cylinder, if appli-

cable remove carbon deposits on the outlet valve and in the cylinder.

3 Inspect condition of O-ring (2).

4 Check that the impulse bore in the valve rod housing (3) is open.

5 Inspect bellows (4) for cracks or porous areas and replace if applicable.

6 Inspect exhaust valve piston (5) for cracks or deformation by caused over-

heating and replace if applicable.

NOTES: Overheating may be caused by leaks.

7 Inspect valve cover (6) for cracks or deformation caused by overheating.

Part Function

1 Exhaust valve

2O-ring

3 Valve rod housing

4 Bellow

5 Exhaust valve piston

6 Valve cover

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