Genuine ROTAX Parts

F – Loctite 7063
L – Klueber Isoflex Topas Nb5051
O – Engine Oil
Z – Loctite 603

e – At 912 ULS the complete  piston with rings has to be exchanged up to S/N 4,425.123;
f – With countersunk for O-ring 830415. 912 UL: 4,403.679, 912 ULS: Starting with serial production, 914 UL: 4,417.868;
g – Note following Service Letter: SL-912-002 current issue, SL-914-002 current issue,
h – With expanded space of sprag clutch. Introduced as per following engine S/N 912 UL: 4,409.089, 912 ULS: 5,650.835, 914 UL: 6,772.727;
i - Balanced pistons set: max. difference 3 g

C – Loctite 638
L – Klueber Isoflex Topas Nb5051
O – Engine Oil

AR – As required

a – For cylinder 2 and 3;
b – For cylinder 1 and 4;
c – Up to engine S/N 912 UL: 4,401.879, 914 UL: 4,417.597, single valve springs and double valve springs if required are allowed to be mounted in one engine;  
d – From engine S/N 912 UL: 4,401.880, 914 UL: 4,417.598;
e – With sintered bronze bushing;
f – Oversize +0.2 mm (0.008 in.);
g – Rocker arm version with vespel bushing, from engine S/N 912 UL: 4,404.621, 912 ULS: 4,427.487, 914 UL: 4,418.104;
h – For inlet valve, chafe up to new measurement;
i –  For outlet valve, chafe up to new measurement;
j – Use only once!;
k – For rework of exhaust port. See Overhaul Manual of the respective engine type, current issue;
l – Marked with S/N;
m – Without worm gear;
n – Prefilled, 8 parts per set;
o – Cylinder heads where the coolant temperature is measured.
p – see SI-914-30

Positions 6-8 are non-certified parts.

a – See also Service Bulletin SB-912-028 / SB-914-016 current issue

C – Loctite 648
E – Loctite Anti-Seize 15378

a – Certified part;
b – 360° anular ring (torus-shaped)

C – Loctite 648
E – Loctite Anti-Seize 15378

a – Marked with S/N;
b – Stainless;
c – In a roll, Tube 125 mm (4.92  in.);
d – With imprinting "oil";
e – See Service Instruction SI-914-022 current issue;
f – With additional internal bracket from engine S/N 914F 4,420.437;
g – With lubricaiton hole for waste gate shaft

B – Loctite 243
I – Lithium-Base Grease
O – Engine Oil

a – Stator retrofit kits: 912 UL: S/N 3,792.501 up to 3,792.55 Set D P/N 888716, S/N 4,005.300 up to 4,152.111 Set E P/N 888718, S/N 3,792.556 up to 4,005.299, Set C P/N 888714; S/N 4,152.112 up to 4,403.282 Set B P/N 888712; 912 ULS: S/N 4,425.001 up to 4,425.029 Set A P/N 888710; 914 UL: S/N 4,417.503 up to 4,417.783 Set B S/N 888712;
b – With modified trigger, instead of 4° before top dead center --> -3° after top dead center;
c – SI-912-013 / SI-914-016 standardization of the ignition unit;
d – Trigger coil kit with elongated hole for adjustment and 6-pole connector incl. 7 Stk. P/N 827800;
e – 4-pole connector and trigger coils without alignment incl. 7 Stk. P/N 827800. Replaced trigger coil kit P/N 965177;
f – Trigger coils for rev. counter to P/N 965176 and P/N 965179;
g – At all trigger coils with longhole