JUST PUT TOGETHER A 2004 KAWASAKI KXF 250 AND IT WILL NOT START OR EVEN BACKFIRE IF YOU SQUIRT FUEL DIRECTLY INTO THE INTAKE AND KICK IT OVER.IT HAS PROPER COMPRESSION ;THE CAM AND VALVE TIMING ARE CORRECT AND IT SEEMS TO HAVE GOOD SPARK.IT ALSO HAS A COMPLETE NEW HEAD;NEW VALVES;NEW CAMS;AND NEW PISTON ;PISTON RINGS AND A NEW CYLINDER.EVEN HAD A LOCAL SHOP TECHNITIAN LOOK AT IT AND HE SAYS THAT HE CANT FIGURE IT OUT.PLEASE HELP ME I AM DESPERATE.
Try a new plug sometimes a plug will not fire under compression. also adj the valves
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The Kawasaki KX250F is among the most dominant dirt bikes in its category in the world. The KX250F top speed is 65-75 mph, but that does depend on multiple factors and modifications.
The `04 KX250 has returned to the days of big bottom-end power. It hits hard off the bottom and pulls smoothly through the midrange before revving out well.In addition to receiving many changes to improve power, the KX125 and KX250 gained durability, and the rider compartment was adjusted to be a bit more comfortable.
The Kawasaki KX 250F is a liquid-cooled DOHC 249 cc (15.2 cu in) four-valve four-stroke single motocross motorcycle made by Kawasaki.
The fastest 250cc dirt bikes are the Kawasaki XK 250 and the Yamaha WR250F, both have a top acceleration of 85 mph and similar features. The most powerful 450cc bike is the KTM 450 SX-F with a speed of 123 mph.
The Yamaha YZ250F peaked at 39.35 horsepower at 12,000 rpm.
Is it good to have a KX250 as a first bike? Not for most people. This is a race-oriented motocross bike, not a gentle trail bike. There is a moderately strong amount of power at your fingertips, and the power curve extends well above 10K rpm.
If you`re truly a beginner to dirt bikes, a 250F MX bike, such as the KX250F or 250SXF is also one of the worst dirt bikes. The power is too abrupt, the suspension is too harsh, and the handling is not good for starting out on. You`ll be too worried about staying on the bike to practice proper riding techniques.
Overall, the KX250 is a very good bike. Like its big brother, the KX450, it has no significant weak links and performs well in all of the power rankings. For 2023, Kawasaki took this already good platform and tweaked a few things with the goal of getting it closer to the competition.
The Z250 is a great naked sportsbike that looks pretty muscular and has a nice stance. This bike is ideal for your usual city commute because it is fun to ride and handles very easily, even for a beginner.
A 2-stroke engine requires only one complete crankshaft revolution to complete the four stages of combustion. A 4-stroke engine requires two crankshaft revolutions. This advantage explains why a 250-cc 2-stroke engine makes more power than a 4-stroke of the same size.
As you`ve read, the 2-stroke bikes have smaller engines, are lighter, have less traction, but more initial power. 4-stroke bikes are heavier, have more stability and traction on the track, but have the higher horsepower for overall power. This means that both are fast.
The top speed of Kawasaki KX 250 is 160 kmph.
If you are a beginner rider, you will find the 4-stroke 250 a lot easier to handle than any other bike. A 2-stroke has so much power that a beginner might have a hard time controlling the bike. A 4-stroke will be the perfect beginner bike for any rider.
For cars or crossover SUVs, 250 horsepower is more than good; it`s a great output that can walk the fine line between high performance and high MPG.
While the majority of 250cc motorcycles readily reach average speeds of 85 mph (about 137 km/h), the top rate varies depending on the motorcycle`s model and engine. The peak pace of a sports motorbike will be higher than that of a naked bike or a cruiser with the same cc.
There are 5-Speed Return gears available in Kawasaki KX 250.
It is recommended that only teenagers from the age of 16-years upward consider riding a 250cc dirt bike. Even so, you should only consider this bike for your kid if they are tall for their age and have the experience and strength to be able to tame a 250cc dirt bike.
CRF250F – Trail Bike – Honda.
For 2012, Kawasaki engineers sought to create a KX250F with even more impressive top-end performance, which they accomplished by equipping its Digital Fuel Injection (DFI®) system with a second fuel injector –a first for use on production motocross bikes– located near the airbox intake.
We agree with that consensus that 250cc motorcycles are the way to go for beginners. But if you`re not convinced, here are some reasons why you should consider this engine size for your first bike.
Choosing something between 250cc and 450cc might be a better choice. However, again, experience plays an important role – even if you`re heavier or taller. Choosing a 450cc might be too powerful for the extremely novice rider, but going above 250cc`s is smart for those who have grown accustomed to riding dirt bikes.
The KX250 is a pure high-rpm race bike. It needs to be revved to the moon to get the most out of it. You could say that this also applies to the KTM 250SXF, FC250 and GasGas MC 250F as well; however, the Austrian engines offer enough low-end grunt that they can hold their own should they need to be short-shifted.
Fastest Superbikes: Motorcycle manufacturers have been producing some of the fastest and most powerful production motorcycles in history. The Kawasaki Ninja H2R broke the speed record by accelerating from 0-400 km/h in under 26 seconds.
It`s inexpensive, reliable, well-behaved and free of the complication that comes with an electric starter and a battery. Sadly, performance isn`t on the list. Peak output is a tick under 40 horsepower, whereas something with a KTM motor is around 44.