FIRST LOOK - 2015 YAMAHA YZ 2-STROKE MODELS - Enduro Tyres

FIRST LOOK – 2015 YAMAHA YZ 2-STROKE MODELS

FIRST LOOK - 2015 YAMAHA YZ 2-STROKE MODELS

Yamaha announced details of their 2015 models and the big news for the Japanese manufacture is their renewed focus on their range of two-stroke YZ models. The news is sure to come as delight for two-stroke followers with Yamaha realising that there is a demand for the product. Getting a serious overhaul, the YZ125 and YZ250 look fresh for 2015…

2015 Yamaha YZ125

For the 2015 model year the YZ125 2-stroke is completely revitalised with a range of stylistic changes that are designed to deliver a lean and modern new image – while important technical updates deliver refined handling characteristics.

The redesigned bodywork and new graphics project a sharp and lightweight appearance that complements the look of the latest generation of YZ-F 4-strokes. The new front and rear fenders, number plate, air scoops, airbox/side covers, fork protectors and seat cover give an up to the minute ‘factory-bike’.

Significant improvements have been made to the front and rear suspension for 2015 and the new systems are now the same as those used on the latest YZ-F 4-stroke models. The 48mm upside down front forks and the link-type Monocross rear suspension run with YZ125-specific settings in order to ensure optimum traction and good terrain following characteristics.

For quick and easy adjustability the 2015 model is equipped with the latest YZ-F 4-stroke type handlebar-mounted clutch adjuster mechanism, and the YZ125 is also fitted with wider YZ-F type footrests that give improved feel and comfort – especially on jumps and whoops.

Completing the 2015 package are the latest pattern Dunlop tyres, as well as a YZ-F style rear sprocket, rear disc guard and rear calliper guard.

YZ125 Technical Highlights

  • YZ-F type 48mm front forks with separate air/oil system
  • YZ-F type link-type Monocross rear suspension
  • YZ-F type rear sprocket, rear disc guard and rear caliper
  • YZ 2-stroke specific suspension settings
  • Newly designed lean and contemporary bodywork
  • New graphics with harmonized YZ logo and ‘Speed Block’
  • YZ-F type handlebar mounted clutch adjuster
  • YZ-F type wide footrests
  • Latest pattern Dunlop tyres

Existing highlights:

  • 125cc liquid cooled 2-stroke engine
  • YPVS (Yamaha Power Valve System)
  • Close ratio 6-speed transmission
  • 38mm carburettor with good throttle response
  • Semi-double cradle aluminium frame
  • Special YRRD kit parts available

2015-Yamaha-YZ250-EU-Racing-Blue-Studio-001

2015 Yamaha YZ250

The 2015 YZ250 2-stroke has undergone the same visual transformation and technical upgrades as the YZ125, including the fitment of the latest YZ-F 4-stroke front and rear suspension systems.

YZ250 Technical Highlights

  • YZ-F type 48mm front forks with separate air/oil system
  • YZ-F type link-type Monocross rear suspension
  • YZ 2-stroke specific suspension settings
  • YZ-F type rear sprocket, rear disc guard and rear caliper
  • Newly designed lean and contemporary bodywork
  • New graphics with harmonised YZ logo and ‘Speed Block’
  • YZ-F type handlebar mounted clutch adjuster
  • YZ-F type wide footrests
  • Latest pattern Dunlop tyres

Existing highlights:

  • 250cc liquid cooled 2-stroke engine
  • YPVS (Yamaha Power Valve System)
  • Close ratio 5-speed transmission
  • 38mm Keihin carburettor with good throttle response
  • Semi-double cradle aluminium frame 
  • The YZ125 and YZ250 are available from September onwards

Yamaha YZ450F and YZ250F

For 2015 the 4-strokes have undergone a number of important changes that are designed to enhance performance and rideability, while a number of stylistic changes give an even sharper image.

Changes have been made to the fuel injection and ignition settings in order to further improve power characteristics, and these revised settings are designed to smooth out the power delivery on the YZ450F, and to give stronger mid-range power on the YZ250F.

For easier maintenance the air cleaner cover is equipped with quick release fasteners that replace the bolts on the current bikes. Both models also receive some detail changes to the engine internals.

The 2015 models also benefit from the fitment of new black rims, which – together with the latest graphics – add to the professional ‘factory-bike’ appearance.

2015-Yamaha-YZ450F-EU-Racing-Blue-Studio-001

YZ450F Technical Upgrades

  • Revised FI and ignition settings for smoother delivery
  • Revised throttle body components for lighter throttle action
  • New quick-release fasteners on the air cleaner cover
  • New black wheel rims
  • New factory-style graphics
  • New lower engine brackets

YZ250F Technical Upgrades

  • Revised FI and ignition settings for stronger mid range power
  • Revised throttle body components for lighter throttle action
  • New quick-release fasteners on the air cleaner cover
  • New black wheel rims
  • New factory-style graphics
  • Modified piston design
  • Revised decompression angle on exhaust camshaft for easier starting
  • Special YRRD kit parts available

The YZ250F and YZ450F are available from July onwards.