| The YZ250F, a four stroke ATV from Yamaha is | | | | driver to shift gears smoothly without any kind of |
| very much like the YZ250 from Yamaha again. Both | | | | hitch. The magnesium cylinders in the engine are |
| the models have striking similarities that make some | | | | painted black and contribute a lot towards the |
| wonder about the variety that Yamaha has to offer | | | | lightweight nature of the vehicle. The reduction in size |
| or are the designs so perfect that there is hardly any | | | | improves performance by cutting down pumping loss. |
| room for improvement? Well just read through and | | | | That’s all about the engine. |
| judge yourself. | | | | The chassis of YZ250F is very much like the YZ250F. |
| A glance on the vehicle lets you know about the | | | | The model e exhibits superb amalgamation of |
| aluminum frame of the vehicle. The welding, casting | | | | Aluminum alloy casting with forging. It also uses the |
| and tubing is done with superb finesse. This vehicle | | | | KYB 48mm forks employing a speed sensitive |
| from Yamaha comes with a five valve Titanium | | | | system that controls damping. The damping force |
| engine having a compression ratio of 13:5:1. This is | | | | opposes speed and is controlled by the piston speed. |
| why it produces such great torque and also | | | | The same as in other Yamaha ATVs. Like other |
| horsepower. The performance booster is also the | | | | ATVs from Yamaha this also comes with a four way |
| smooth handling offered by it. The whole weight of | | | | adjustable, rear shock absorber. The internals are |
| the vehicle is balanced equally on the wheels. For | | | | Kashima coated to reduce friction. The removable |
| durability the dry slump lubrication system is | | | | rear sub frame is another common feature. It is |
| employed. The engine is liquid cooled 250cc. The | | | | Aluminum built with square section tubing. This eases |
| DOHC engine is very powerful and highly dependable. | | | | the maintenance work and also helps in weight cut. |
| High precision fuel and air mixing is taken care of by | | | | The front wheel hub gives better durability due to its |
| 37 mm Keihin FCR carburetor with a throttle position | | | | lightweight. The brake calipers, both front and rear, |
| sensor (TPS). This also gives a better throttle | | | | come with Aluminum pistons. The anti bubble cylinder |
| response. Starting and restarting this vehicle is very | | | | is fitted along to offer stronger brakes. The front |
| easy, thanks to the automatic decompression. The | | | | excel rim measures 12 inches and the rear one |
| gear box is a standard five speed transmission. The | | | | measures 19 inches, as in YZ250. |
| YZ250F employs a multiplate clutch. This helps the | | | | |