BRP-Rotax
REPAIR MANUAL
CYLINDER COMPONENTS INSPECTION
General
ATTENTION
Components, which have reached or exceeded their wear limits, must be replaced.
Components, which are found to be defective in the context of the visual inspection and
might influence the engine's performance, must also be replaced.
INSPECTION OF CYLINDER COMPONENTS
Instructions See Figure: Cylinder.
Preparation The following preparation is required before removal.
1. Remove lime deposits (1) from the water cooling of the cylinder.
2. Clean combustion residues from the exhaust valve and slider duct (2).
3. Clean O-ring groove (3).
4. Inspect all threads.
5. All sealing surfaces must be clean and smooth.
6. Inspect the cylinder bore for abnormal wear.
7. Inspect the impulse bore (4).
Figure 4.10: Cylinder
1 Water duct 2
Exhaust valve port
3
Groove for O-ring
4
Impulse bore
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Effectivity: 125 MAX evo, Junior MAX
evo, Mini MAX evo, Micro MAX evo
Edition - February 01 2018 /Rev. 0
Chapter 4
Page 11
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