Rotax 912 ULS 3 Operator's Manual page 51

Starting problems
Engine run
Oil pressure
Effectivity: 912 Serie
OM Edition 2 / Rev. 0
Engine does not start
Possible cause
Ignition off.
Closed fuel valve or clogged
filter.
No fuel in tank.
Starting speed too low, faulty
or discharged battery.
Starting speed too low, start
problems on cold engine.
Engine idles rough after warm-up period, smoky exhaust
emission
Possible cause
Starting carb (Choke) activat-
ed.
Engine keeps running with ignition off
Possible cause
Overheating of engine.
Knocking under load
Possible cause
Octane rating of fuel too low.
Low oil pressure
Possible cause
Not enough oil in oil tank.
BRP-Powertrain
Remedy
switch on.
open valve, clean or renew filter, check
fuel system for leaks.
refuel.
fit fully charged battery.
use top quality, low friction oil; allow for
sufficient cooling period to counter for
performance drop on hot starter; pre-
heat engine.
Remedy
close starting carb (Choke).
Remedy
let engine cool down at idling at approx.
2000 rpm.
Remedy
use fuel with higher octane rating.
Remedy
Check oil return line for free passage,
renew oil seal.
page 4-5
April 01/2010