Rotax 125 Max User Manual

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 13
December 01/2010
3) Inspection of cylinder parts
General
3.1) Inspection of cylinder
Instructions See Figure 6.
Graphic Cylinder
Figure 6 K00027

WARNING
NOTICE
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 perform-
ance, must also be replaced.
Step Procedure
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.
Part Function
1 Possible lime deposits
2 Slider duct
3 Groove for O-ring
4 Impulse bore
2
3
1
4

Rotax 125 Max Specifications

General

Engine type	Single-cylinder, 2-stroke
Displacement	124.8 cc
Cooling system	Liquid-cooled
Bore x Stroke	54 mm x 54.5 mm
Starter	Electric starter
Intake System	Reed valve
Clutch	Centrifugal dry clutch
Fuel System	Carburetor
Exhaust system	With silencer
Maximum Power	28 hp (20.5 kW) @ 11, 500 rpm
Maximum Torque	21 Nm at 10, 500 rpm
Gearbox	Direct drive
Lubrication	Mixture lubrication