Is a 2003 R6 fuel injected?

For 2003, the R6 has undergone a wheels-up redesign, with a stronger, cleaner, fuel-injected engine, a revolutionary frame that’s the first ever to use Yamaha’s exclusive new casting technology–and a stunningly modern look from the point of its exclusive Gatling-beam headlights to the tip of its LED taillight.

What year R6 had the most horsepower?


1999-2000 2017-2020
Compression ratio 12.4:1 13.1:1
Horsepower 73.7 kW (98.9 hp) @ 12,500 rpm (rear wheel) 87.1 kW (116.8 bhp) @ 14,500 rpm (claimed)
Torque 57.2 N⋅m (42.2 lb⋅ft) @ 10,500 rpm 61.7 N⋅m (45.5 lb⋅ft) @ 10,500 rpm
Fuel system 37 mm carburetors Fuel Injection w/YCC-T and YCC-I

Is the 2004 R6 fuel injected?

on their corporate heels with the first YZF-R6. Inhaling through four 38mm vacuum-piston throttle bodies, the first fuel-injected R6 makes more midrange power than its carbureted predecessor. But racier ’03 intake cams mean the engine isn’t really open for business until the tach strikes 9000.

Which spark plug part numbers can’t be adjusted?

The exception are for example spark plug part numbers with gap that does not need to be adjusted and can not be changed, such as Brisk Premium Multi-spark plugs, Brisk Premium LGS Spark Plugs, Brisk Premium LGS-T spark plugs, Brisk Extra Turbo Spark Plugs and some others.

Why do used spark plugs have a weak spark?

Used spark plugs are hard to fire as the gaps are worn out, and insulation properties of the ceramic is compromised by solid combustion deposits and old fuel saturation. This robs available voltage at the spark plug gap, as it “leaks” through the low resistance carbon deposits to the ground, resulting in a weak spark.

What is a good spark plug gap for my car?

That reason is why high power vehicles (1,000 horspower and more) often run a spark plug gap as small as .016″.

What factors affect the spark plug discharge rate?

between the spark plug gap (center electrode and ground electrode). 2) Pressure in the combustion chamber at time of spark discharge – Depends on compression and aspiration of the engine. High compression engines and engines with forced induction have higher combustion chamber pressures at time of spark discharge.