ROTAX Engines & Parts

A – Loctite 221
D – Loctite 574

a – Measure group "c" 1.830 - 1.839 mm, b – Measure group "C" 1.830 - 1.839 mm, c - Until crankcase SN 12.0122

A: Loctite 221
L: Molykote PG-54
M: Molykote G-N

AR – As required

a – Starter rope 1700 mm;
d – Starter Rrope 3700 mm;
f – In a roll/sold per meter (39”)

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

a - Double flange, b - Air filter incl. hose clamp, c - Ambient pressure and temperature

B – Loctite 243
C – Loctite 648
L – Klueber Isoflex Topas Nb5051
O – Engine Oil

AR – As required

a – Bushing not available as spare part, use drive housing assy. 866880;
b – End frame with sleeve, not available as spare part, use end frame assy. 866900;
c – Bushing, not available as spare part, use drive housing assy. 866900;
d – brush, not available as spare part, use brush holder assy. 866890;
e – Spring, not available as spare part, use brush holder assy. 866890.

B – Loctite 243
N – BP Energrease LZ

a – Red 76,00 - 76,01mm, Green 76,01 - 76,02 mm;
d – For configuration with and without 2-piece radiator

Q – 732 RTV

AR – As required

a – Use at 582 UL mod. 90;
b – Use at 582 UL mod. 99;
c – Not available as spare part, use 881460

B – Loctite 243

a – For cylinder 1/3;
b – For cylinder 2/4;
c – Carburetor housing not available as spare part. Use carburetor assembly; 
d – Refer to service instruction SI-03-1998 current issue;
e – With clearance for O-ring (use only together with O-ring pos. 16 P/N 950430);
f – See SI-912-012, SI-914-014 current issue;
g – For airbox P/N 667167, See SI-914-015 current issue, For engine S/N 914 UL 4,418.634;
h – For airbox P/N 867753 or 667162, See SI-914-013 and SI-914-002 current issue;
i – Package including two floats;
j – At carburetor 1/3 only 1 piece;
k – Contain parts requirement for 2 carburetors

B – Loctite 243
I - Lithium-Base Grease
AG – Silicon Heat Compound

a – Sold by the meter (39");
e – Not necessary at intake manifold P/N 867688;
f – Introduced as S/N 04.0388 with altered insulation only for spare parts;
g – Not suitable for crankcase P/N 886354, P/N 886358 and older;
h – At crankcase P/N 888364 or newer crankcase;
i – Not suitable for intake manifold P/N 867688;
j – Necessary at version with ring mount;
k – Sold by the meter (39");
l – Use P/N 842742 and 953390 only together;
m – SI-912-013 / SI-914-016 current issue. See Maintenance Manual Heavy of the respective engine type, current issue. From engine 912 UL S/N 4,406.291, 912 ULS S/N 5,643.680, 914 UL 4,418.712;
n - In a roll, silicone hose 120 mm;
o – SI-912-020 / SI-914-022 current issue;
p – 1x lock washer A6 P/N 945751 is not needed after production-year 2010 on position between the bracket 2 P/N 851267 and the hex nut M6

AR – As Required 

a – break away torque 700-900 Nm/516.2 ft.lb - 663.8 ft.lb., b – break away torque 600-800 Nm/442.5 ft.lb - 590 ft.lb.

a - Width A/F 1, b - From 912 iS engine S/N 4417400 up to engine S/N up to 4417400, c - Width A/F 13

B – Loctite 243
C – Loctite 648

AR – As required

c – Cooling area 234 cm² / 36.27 sq. in.;
e – UNF connections

a – Marked with S/N

A – Loctite 221
B – Loctite 243
C - Loctite 648

c – Tighten to leave 1mm distance between starter cover and electric starter

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

a – From engine S/N 582 UL Mod. 90 5,236.549 piston for monohook circlip configuration (see also SI-2ST-001);
b – With 2 rings, standard;
c – With 2 rings, 1st oversize;
d – with 2 rings, 2nd oversize;
e – Standard size;
f – 1st oversize;
g – 2nd oversize; 
h – For use with piston Part No. 888 590 (Also see SI-2ST-001);
i – Use only once

L – Klueber Isoflex Topas Nb5051
O – Engine Oil

a – For gear sets P/N 886125, 886517; thin dog gear (22 mm / 0.87 in.)
b – For gear set P/N 886518; wide dog gear (27 mm / 1.06 in.)
c – With additional bores to drain lead
d – Option for 912 UL fitted with 2,43 gear set

AR – As required

a – For specific use see installation sheet;
b – Use at intake silencer version;
c – For 582 UL mod. 90 without fresh oil injection;
d – With fresh oil injection

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