How much horsepower does a 1999 YZ250 have?
A ’99 YZ250 is around 45-46 hp depending on the dyno you use.
What is the best year YZ250?
Yamaha YZ250. Yamaha is the only Japanese manufacturer that still imports their two-stroke motocross bikes to the U.S.. They have had it together the entire time, but the YZ250’s best years are 2005 and newer. The lightweight aluminum frame and updated suspension (2006) makes the bike nimble, quick, and easier to ride.
How much horsepower does a YZ250 put out?
The engine produces a peak 48.8 horsepower (36.4 kW) at 8,800 rpm and 30.6 foot-pounds force (41.5 N⋅m) of torque at 7,500 rpm, with a 9,000 rpm redline.
How long will a YZ250 engine last?
It might last 60-70 hours before kaboom, but for best performance, you are probably looking at about 30 hours.
Are YZ250 fuel injected?
In fact, the YZ250 was the seventh fuel-injected bike that Nick made. He was well aware of the difficulties in figuring out the fueling, ignition, and other vital areas that needed transforming, massaging, and tweaking.
What does YZ stand for in Yamaha?
YZ is Yamaha zinger.
Are YZ250 reliable?
It’s a fairly reliable bike, usually starts first or second kick every time and there’s plenty of compression. I rode a mate’s 2007 KTM SX-F250, and the power that that bike produces is absolutely horrible compared to the YZ. It’s a perfect bike for racing.
What has changed on the YZ250?
Yamaha’s flagship YZ250 two-stroke receives an enhanced lightweight braking system, updated suspension settings, improved ergonomic design with updated, modern YZ styling and new premium graphics. “At Yamaha, two-strokes are in our blood.
What is the fastest 250 2 stroke?
6 KTM 250SX Since its introduction in 2002, the KTM 250SX has been praised worldwide for being one of the most reliable dirt bikes on the market. Although not officially confirmed, the 250SX is believed to be the fastest 250cc two-stroke production dirt bike. It is a powerful motorcycle that’s also quite fun to thrash.
How do I know if my dirt bike needs a rebuild?
The top signs that a 4 stroke dirt bike needs to be rebuilt are:
- Hard to start.
- Low power.
- Noisy engine.
- Fouling plugs.
- Running more rich.
- Smoking.
- Milky oil.
- Metal in oil/filter.
How do I know if my dirt bike needs a new top end?
If you have to put a new one in every ride, stop and inspect before riding again. If the jetting is right, a fouled spark plug can also be caused by a bad top-end or blow-by from the worn piston/ring/cylinder. This definitely indicates a new top-end is required, as well as a new spark plug.