Rotax 912 iS Sport Operator's Manual page 57

Oil level
Cold engine start
Effectivity: 912 i Series
Edition 2 / Rev. 0
Oil level is increasing
Possible cause
Oil too cold during engine
operation.
Contamination with diesel
fuel.
Engine hard to start at low temperature
Possible cause
Starting speed too low.
Low charge battery.
High oil pressure.
Oil pressure too low after
cold start.
NOTE
Oil pressure must be measured at idle at an oil temperature of
minimum 50 °C (122 °F). Be sure the oil pressure does not go
below minimum at idle.
BRP-Rotax
Remedy
Cover oil cooler surface, maintain the
oil temperature prescribed.
Check fuel.
Remedy
Preheat engine.
Fit fully charged battery.
At cold start an oil pressure reading
of up to around 7 bar (102 psi) does
not indicate a malfunction.
Too much resistance in the oil suc-
tion system at low temperatures due
to cold oil. Stop engine and preheat
oil. After a cold start the oil tank must
be observed and the oil pressure
should be above 1.5 bar (22 psi).
Otherwise, the speed must be low-
ered again, because not enough cold
oil can be sucked. If oil pressure is
reading lower than 1 bar (15 psi) oils
with lower viscosity are to be used.
See SI-912 i-001, current issue.
January 01 2019
Page 4-11