Operating instructions

91
SPECIFICATIONS
ENGINE
GTX 4-TEC SERIES
(6105/6106/6107/6108/6111/6112/
6125/6126/6128/6129)
Type
BOMBARDIER-ROTAX 1503, 4 stroke.
Single Over Head Camshaft (SOHC),
liquid cooled
Number of cylinder 3 in line
Number of valve
12 valves (4 per cylinder) with hydraulic lifters
(no adjustment)
Displacement 1494 cc (91.2 cu. in)
Induction type
GTX 4-TEC and GTX 4-TEC Vans Triple
Crown Edition: Normally-aspirated
GTX 4-TEC Supercharged,
GTX 4-TEC Supercharged Limited:
Mechanically-driven supercharger
Bore 100 mm (3.9 in)
Stroke 63.4 mm (2-1/2 in)
Compression ratio 10.5:1
Lubrication
Type
Dry sump (2 oil pumps). Replaceable oil filter.
Water-cooled oil cooler
Oil type
4-stroke engine oil SAE 10W40
(API service classification SG, SH or SJ)
Exhaust system
Water cooled/water injected.
Direct flow from propulsion unit
Rev limiter setting 7300 ± 50 RPM
COOLING SYSTEM
Type
Liquid cooled. Closed circuit
(see also exhaust system)
Coolant
Ethylene-glycol 50%/50% antifreeze/water.
Coolant containing corrosion inhibitors for
internal combustion aluminum engines
smo2003-003a.book Page 91 Tuesday, August 27, 2002 9:23 AM