~
TECHNICAL Vance
&: Hines Yamaha FZR750R·R"OWOl Superbike
~ Accent on Su
0')
0')
........
er
By Brian Catterson
(Left) Vance &: Hines' Yamaha
FlR750R-R OWOI superbikes will
be ridden by David Sadowski and
Thomas Stevens at Daytona and
throughout the 1990 AMA National
Superbike Championship. The
brilliant magenta-and-yellow color
scheme was specified by Yamaha in
Japan, and required a few trips to the
painter before a match was found;
black-and-white photos don't do it
justice. (Below left ) Five-valve percylinder Yamaha Genesis engine
produces approximately 130 hp.
Standard Yamaha EXUP electronically-controlled exhaust power valve
mates with Vance &: Hines-built
header and muffler, Note trick details
such as custom-fabricated dual aluminum radiators and water-cooled oil
£ilter collar. (Below) New V&:H crew
chief Steve J ohnson is a perfectionist,
and the bikes he prepares reflect his
high standards. The owors tip the
scales right at the AMA's new 370 lb.
minimum weight limit, and do so
without any titanium. Sadowski's
mount (sho wn here ) reportedly
attained speeds of over 175 mph
during Da ytona testing, and turned
quick lap times in the 1:55-range.
(Left) Aluminum swingarm is a one-off works Yamaha part. (The stocker
has no external bracing.) It's coupled with a remote reservoir Ohlins shock.
(Above) Longer clutch actuating arm is from Yamaha's superbike bodywork
kit, which also includes such parts as the lightweight fairing and tailpiece.
30
