
Section 08 TECHNICAL SPECIFICATIONS
Subsection 01 (RXT iS 255/GTX LIMITED iS 255)
RXT iS 255/GTX LIMITED iS 255
MODEL
RXT iS 255
GTX LIMITED iS 255
ENGINE
Engine type
ROTAX 1503 4-TEC, 4-stroke, Single Over Head Camshaft (SOHC)
Induction
Supercharged intercooled
Number of cylinders
3
Number of valves
12 valves with hydraulic lifters (no adjustment)
Standard
100 mm (3.9 in)
Bore
1
st
Oversize
100.25 mm (3.95 in)
Stroke
63.4 mm (2.5 in)
Displacement
1 493.8 cm³ (91 in³)
Compression ratio
8.4:1
Maximum HP
8000 RPM
Type
Dry sump (2 oil pumps). Replaceable oil filter. Water-cooled oil cooler
Oil type
XPS summer grade oil (P/N 293 600 121). Refer to
LUBRICATION
subsection
Lubrication
Capacity
3 L (3.2 qt (U.S. liq.)) oil change w/filter
4.5 L (4.8 qt (U.S. liq.)) total
Intake valve opening
0° BTDC
Intake valve closing
50° ABDC
Exhaust valve opening
50° BBDC
Exhaust valve closing
0° ATDC
New
5.961 mm to 5.975 mm (.2347 in to .2352 in)
Intake
Wear limit
5.930 mm (.233 in)
New
5.946 mm to 5.960 mm (.2341 in to .2346 in)
Valve stem diameter
Exhaust
Wear limit
5.930 mm (.233 in)
New
5.990 mm to 6.010 mm (.2358 in to .2366 in)
Valve guide diameter
Wear limit
6.060 mm (.2386 in)
New
41.02 mm (1.615 in)
Inner
Wear limit
38.80 mm (1.528 in)
New
45.45 mm (1.789 in)
Valve spring free
length
Outer
Wear limit
43.00 mm (1.693 in)
New
1.10 mm to 1.30 mm (.043 in to .051 in)
Intake
Wear limit
1.60 mm (.063 in)
New
1.25 mm to 1.55 mm (.049 in to .061 in)
Valve seat contact
width
Exhaust
Wear limit
1.80 mm (.071 in)
New
20.000 mm to 20.020 mm (.7874 in to .7882 in)
Rocker arm inner diameter
Wear limit
20.030 mm (.7886 in)
New
19.980 mm to 19.990 mm (.7866 in to .787 in)
Rocker arm shaft diameter
Wear limit
19.960 mm (.7858 in)
Cylinder head maximum warpage
Service limit
0.15 mm (.006 in)
smr2009-044
511
Содержание GTX Limited iS 255 2009
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