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- Three piece crankshaft of high strength steel,
larger diameter of .40mm
- Larger, higher quality main bearings
- Aluminum cylinders with steel liners
- Cylinder head thru-bolted thru cylinder to case,
larger diameter studs
- New design rocker arm assembly, more precise
geometry for longer life
- Forged pistons with U.S. sourced high quality
rings
- Improved reliability electronic ignition
- 50amp Nippon Denso Alternator
- Improved foot room under carbs...intake manifolds
canted up and in
- Improved gear quadrant shifter mechanism...easier
and more positive shifting of gears
- "Pin less" clutch pressure plate
- 1-piece flywheel with ring gear intigrated into
flywheel
- New timing gear with better quality casting,
quieter with longer life
- Larger, higher quality drive shaft spline for
longer life
The URAL 750cc Boxer twin is coming after over four
years of development and testing. The basic engine design has not
changed. This is an evolution and improvement of an already
proven design, not a revolution to a new engine design.
The basic change is in stroke, adding 10mm to the 68mm stroke of
the 650cc engine. However, as long as we were changing the stroke,
which entailed a new crankshaft, and 10mm longer connecting rods
and 10mm longer cylinders, we decided to correct many of the weaker
areas of the 650cc engine. The end result is an engine that not
only has more horsepower and torque, which gives the motorcycle
more pulling power and speed, but the changes also provide improved
reliability and less maintenance hassles.
It also sounds throatier and powerful! Combined with several cosmetic
and trim improvements on the frame and motorcycle itself, the new
Ural 750cc motorcycle should quickly become a popular ride for both
enthusiasts and retro collectors of all ages. ALL 2002 models will
come equipped with this engine!
750cc
URAL Specifications
- Displacement: 745cc (78mm bore x 78mm
stroke)
- Compression ratio: 9.1 to 1
- Rated Horsepower: 41
- Rated Torque: 52Nm
- Carburetion: Keihin Seiki 32mm CVK
- Estimated Max Speed: 65 mph
- Final Drive Gear Ratio: 4.62 (all models)
- Gear Box: Taller 3rd (1.5:1)
and 4th (1.19:1) Gears
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