What kind of engine does a Yamaha R1 have?
The 2007 Yamaha R1 features new-found midrange drive from junking Yamaha’s tried and tested five-valve per cylinder in favour of the traditional four-valve set up, but at the same time installing some of the “bad boy” engine manners the original model was famed for.
What are the brake calipers on a Yamaha R1?
The Yamaha R1’s dash layout is spartan but effective; big tachometer face, gear shift light and LCD speedo are all you’ll really need. Yamaha has brought back six-piston brake calipers to fly in the face of four-pot fashion, but they work very, very effectively on the smaller-sized discs of the latest R1.
Is the Yamaha R1 a midrange bike?
What the 2007 Yamaha R1 does have though is a healthy dollop of midrange kick. Not that this will be a worry in the lower gears as the fly-by-wire system, linked to detailed ECU mapping, won’t deliver everything the rider asks for, instead giving what it thinks is best.
How many ohms does an ignition coil need?
Touch the second probe of the meter to the ignition coil’s grounding terminal. The meter should read 6,000 to 15,000 ohms. If it does not, the coil’s secondary winding is faulty.
Yamaha YZF-R1 SP: A limited edition semi race spec variant, with fuel injection tweaks, special Ohlins suspension, top end work to squeeze another 3bhp from the motor and matt black paint. 20 owners have reviewed their YAMAHA R1 (2004 – 2006) and rated it in a number of areas.
When did Yamaha change to four valve engine?
In 2007, Yamaha scrapped their five valves per cyclinder engine format in favour of a four-valve head version. The bike got more power, ride-by-wire, electronically-controlled inlet trumpets and a new chassis and styling.
Is the Kenny Roberts Yamaha R1 a collectable?
The Kenny Roberts yellow and black painted model Yamaha R1s will possibly be collectable in the future. It’s only worth considering the high spec SP model if you have the spare dosh and track time to enjoy it, as depreciation will be harsh.