Classic Motorcycle Mechanics

1998 YZF-R1 4XV

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Since 1992 Honda’s CBR900RR Fireblade had been the undisputed king of the large capacity sports bike, but the YZF-R1 would change all of this for 1998.

The centrepiec­e of the R1 would be a 998cc, 20-valve four-cylinder, liquid-cooled motor breathing through four 40mm Keihin CB carburetto­rs pumping out around 150bhp at 10,000rpm. It would also feature an EXUP valve in the machine’s exhaust downpipes to boost mid-range power.

The chassis of the 4XV featured a new Deltabox II frame with a short 1395mm wheelbase, but the heavily braced swingarm was longer than previous models, allowing better traction out of turns while opening the throttle. The ‘blue-spot’ Sumitomo brake calipers would become a byword in braking and (astonishin­gly) the dry weight would be just 176 kilos. Even better, Project Leader Kunihiko Miwa made sure the looks were simply jaw-dropping.

Launched at the tight and twisty Cartagena circuit in Spain, this showed that the bike had power and could handle the corners. It trumped all comers and cost just £9399 price tag on launch in late 1997.

Improvemen­ts came thick and fast and today the R1 is still in Yamaha’s stable, but the first model is the purest and prices are firming up. Expect to pay up to £5000 for a good ‘un and from £2000 for something average.

If you want to see more classic Yamahas this issue, then check out the YA-1 on page 6, the RZ500R on page 66, the RD500LC on page 70, the CS3C on page 84, and the TZR250 3MA on page 92…

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