1
X
6-7
Mounting the piston and cylinder
– Before assembly, oil all parts thoroughly at the sliding points.
– Insert the needle bearing in the conrod eye, attach the piston (the
arrow on the base of the piston should point towards the exhaust
port) and mount the piston pin.
– Mount 2 new wire circlips with the open side facing down.
– Mount the cylinder base gaskets.
– Place the piston on a self-made wooden stand and adjust the piston
ring.
– Oil the sealing element support
1
.
NOTE:
2 piston rings are installed starting with the 2005 model.
– Mount the pre-mounted cylinder, remove the wooden stand and
tighten all 4 collar nuts crosswise to 35 Nm.
Adjusting dimension “X”
NOTE: Dimension "X" is the dimension from the upper edge of piston to
the upper edge of the cylinder with the cylinder under low tension and
the piston in TDC position.
The dimension "X" should be adjusted extremely carefully by inserting
cylinder base gaskets of suitable thicknesses.
!
CAUTION
!
I
F THE DIMENSION
“X“
IS TOO LARGE
,
THE COMPRESSION RATIO WILL BE REDUCED
AND THE ENGINE WILL LOSE POWER
. O
N THE OTHER HAND
,
IF THE DIMENSION
“X“
IS TOO SMALL
,
THE ENGINE WILL PING AND OVERHEAT
.
250 SX/SXS
all 2006 250 models
– Move the piston to TDC and apply the adjusting gauge
548.29.001.000 to the center of the cylinder, transversal to the
driving direction. Use a feeler gauge to measure the gap between the
upper edge of the piston or cylinder and the adjusting gauge.
250 EXC/EXC SIX DAYS 2004/2005
all 300 models
– Move the piston into the TDC position and place a sliding gauge or
straight edge across the cylinder. Use a feeler gauge to measure the
gap between the upper edge of the piston or cylinder and the sliding
gauge.
– If correctly adjusted, the adjusting plate or sliding gauge should fit
flush against the upper edge of the piston and cylinder.
– Correct by adding or removing cylinder base gaskets.
Dimension “X“ = 0 mm
+ 0.1 mm
!
CAUTION
!
T
HE PISTON MUST NOT PROTRUDE BEYOND THE CYLINDER
'
S UPPER EDGE
.
Summary of Contents for 125 SX 2010
Page 2: ...OWNERSMANUAL2010 250 SX 250 300 XC XC W EXC EXC SixDays ...
Page 3: ...OWNER S MANUAL 2010 125 SX 150 SX 250 SX Art no 3211480en ...
Page 91: ...TECHNICAL DATA SHOCK ABSORBER 89 Shock absorber oil p 95 SAE 2 5 ...
Page 93: ...91 ...
Page 222: ...119 ...
Page 223: ...WIRING DIAGRAM 120 ...
Page 226: ...WIRING DIAGRAM 123 ...
Page 304: ...1 2 3 4 7 12 Art No 3 206 088 E Repair manual KTM 250 300 ...
Page 306: ...bl bk 6 7 8 9 7 14 Art No 3 206 088 E Repair manual KTM 250 300 ...
Page 308: ...1 2 3 4 5 7 16 Art No 3 206 088 E Repair manual KTM 250 300 ...
Page 393: ...11 15 PERIODIC MAINTENANCE SCHEDULE 2010 250 SX ...
Page 394: ...11 16 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 396: ...11 18 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 397: ...11 19 ...
Page 409: ...EXC 250 300 2005 EXC SIX DAYS 250 300 05 06 12 11 ...
Page 413: ...EXC 250 300 2005 EXC SIX DAYS 250 300 05 06 12 15 ...
Page 414: ...EXC USA 250 2005 12 16 Art No 3 206 088 E Repair manual KTM 250 300 ...
Page 416: ...12 18 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 430: ...Repair manual KTM 250 300 Art No 3 206 088 E 12 32 250 EXC EXC Six Days EU AUS 2008 2009 ...
Page 431: ...12 33 250 300 XC USA 2008 250 CX W ZA 2008 2009 ...
Page 433: ...12 35 300 EXC E EXC E SixDays EU AUS 2008 2009 ...
Page 437: ...12 39 250 SX 2010 ...
Page 438: ...12 40 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 439: ...12 41 250 EXC EU 2010 ...
Page 440: ...12 42 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 441: ...12 43 250 300 EXC 2010 ...
Page 442: ...12 44 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 443: ...12 45 250 300 XC XC W 2010 ...
Page 444: ...12 46 Repair manual KTM 250 300 Art No 3 206 088 E ...
Page 445: ...REPAIRMANUAL2004 2010 2004 2005 DCC ...
Page 553: ...1 7 T 14031 Dismounting mounting tool ...
Page 559: ...2 6 Exploded view PDS 5018 SXS SMR 2005 2006 ...
Page 561: ...2 8 Exploded view PDS 5018 SXS 2007 ...
Page 739: ...1 7 T 14 030 Adaptor T 14 033 Assembling tool ...
Page 741: ...2 2 Repair manual WP Fork Closed Cartridge Art No 3 211 199 E Exploded view SXS 2005 ...
Page 746: ...2 7 Exploded view SXS 2006 ...
Page 751: ...2 12 Repair manual WP Fork Closed Cartridge Art No 3 211 199 E Exploded view SX 2007 ...
Page 756: ...2 17 Exploded view Fork SXS 2007 ...