Rotax MMH-912 Series Maintenance Manual page 95

7
(D) Turn the crankshaft carefully in direction of engine rotation until the piston
touches the piston stoppers.
◆ NOTE:
◆ NOTE:
(E) Turn the protractor (2) on the holder (1) until the pointer of the metal sheet
(3) points to 0° then tighten with screw (5).
◆ NOTE:
◆ NOTE:
(F) For a smoother removal of the piston stopper turn the piston slightely away
from the piston stopper.
(G) Now install the piston stopper at cylinder 2 and procede like at cylinder 1.
(H) Read the difference to 0° from the protractor.
Effectivity 912/914 Series
Edition 1 / Rev. 3
BRP-Powertrain
Maintenance Manual
Allways turn the crankshaft in direction of engine rotation, to
move the piston towards the piston stopper.
The force applied should be strong enough to break-through
possible accumulations on the piston's surface.
From this point onwards until the measurement procedure has
ended the protractor must not be turned on the metal sheet.
In this position the piston of cylinder 1 touches the piston
stopper.
Fig. 72-21/2
08582
72-00-00
page 24A
October 01/2010