2-Stroke Parts 447, 503, 582

A – Loctite 221
C – Loctite 648
E – Loctite Anti-Seize
H – Loctite 603
I – Lithium-Base Grease
Q – 732 RTV

AR – As required

a – Replace layshift gear 55 T and pinion shaft 21 T only together;
b – Replace layshift gear 57 T and pinion shaft 19 T only together;
c – Replace layshift gear 59 T and pinion shaft 17 T only together;
d – Replace layshift gear 60 T and pinion shaft 15 T only together;
e – Attention: Left handed thread;
f – Coupling-flange Part No. 958 971 and sealing ring Part No. 950 084 has to be used as a set;
h – Gear set and splitted cone sleeve must be used together;
|| – NOTE: Included starter relay;
See also SI-2ST-007

A – Loctite 221
D – Loctite 574

a – From engine serial number 4,795.397

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

AR – As required

d – Starter Rope 3700 mm;
e – Starter Rope 2200 mm;
f – In a roll/sold per meter (39”);
g – Modified rope fixation, knot instead of key clamp (from S/N 5.742.150)

447 UL – 29.5 kW
503 UL – 34 kW
582 UL

a – Base carburetor for air-cooled engines with bowden cable choke. NOTICE carburetor without calibration. From engine S/N 447 UL: 3,940.675, 503 UL: 4,795.201;
b – Base carburetor for liquid cooled engines with bowden cable choke. NOTICE carburetor without calibration; From engine S/N 582 UL Mod. 90: 4,656.088, 582 UL mod. 99: starting with serial production;
c – Carburetor housing, not available as spare part, use carburetor assy.;
d – Jet-needle, see carburetor calibration sheet;
e – Idle-jet, see carburetor calibration sheet;
f – Needle-jet, see carburetor calibration sheet;
g – Main-jet, see carburetor calibration sheet;
h – Only necessary on high altitude compensation kit (not available anymore)

A – Loctite 221
B – Loctite 243
C – Loctite 648
D – Loctite 574
J – Molykote 44 Medium

c – Up to engine S/N 582 UL Mod. 90 4,172.691 (see also SI-08-1994);
d – From engine S/N 582 UL Mod. 90 4,172.692 (see also SI-08-1994)

A – Loctite 221
I – Lithium-Base Grease

a – For configuration free-air-cooled;
b – In a roll/Sold per meter (39");
c –  For magneto flywheel new version (with closed cage), Torx screw also valid for old version. At disassembly and reassembly of the screw, the thread has to be cleaned of the remaining coating and secure with Loctite 221. As an alternative a new screw can be used.

B – Loctite 242
F – Loctite 380
I – Lithium-Base Grease

AR – As required

a – For ignition circuit 1, b – For ignition circuit 2, c – To fix oil tube resp. cable harness, d – In a roll/sold per meter (39")

a – RED 67.50 MM - 67.51 MM, GREEN 67.51 - 67.52 MM;
b – Cylinder PTO side;
c – Cylinder MAG side

A – Loctite 221
B – Loctite 243
Q – Silastic 732 RTV

AR – As required

a – Cooling surface 3,2 dm² (49,6 in²);
b – From engine S/N: 3,916.823;
c – Up to engine S/N: 4,916.822;
d – For evacuation of air, at installation of engine with spark plugs down;
e – Longer studs for 582 UL Mod. 90. Not used on 582-99;
f – Sold by the meter (39”)

A – Loctite 221
Q – Silastic 732 RTV

AR – As required

a – Cooling surface 2,4 dm² (37.2 in²);
b – From engine S/N: 3,916.823;
c – Up to engine S/N: 4,916.822;
d – For evacuation of air, at installation of engine with spark plugs down;
e – Longer studs for 582 UL Mod. 90;
f – Sold by the meter (39")

AR – As required

a – Air guide, carburetor side;
b – Air guide, exhaust side

AR – As required

a – For E-starter position 93 or 183 degrees;
b – Air guide, carburetor side;
c – Air guide, exhaust side

I – Lithium-Base Grease
X – Adhesive

AR – As required

b – For mixture lubrication;
c – For oil pump version

A – Loctite 221
Q – Silastic 732 RTV

AR – As required

a – Cooling surface 3,2 dm² (49,6 in²);
b – From engine S/N: 3,916.823;
c – Up to engine S/N: 4,916.822;
d – For evacuation of air, at installation of engine with spark plugs down;
e – Longer studs for 582 UL Mod. 90. Not used on 582-99;
f – Sold by the meter (39”)

I – Lithium-Base Grease
X – Adhesive

AR – As required

A – Loctite 221
B – Loctite 243
I – Lithium-Base Grease

a – For configuration without oil pump;
b – Sold by the meter (39");
c – From engine S/N 5,381.289