YZ 125
Like the YZ 250, the YZ125 is a completely new
animal for 2002. Starting with an all-new, twin-spar frame that
boosts lateral rigidity while reducing weight to deliver minimal
flex for improved, sharper handling. A new, bigger- bore 38mm
Mikuni TMX carburetor and reshaped exhaust and scavenging porting
deliver harder-hitting low-and top-end power and higher over-rev
capacity. A brand-new, close-ratio 5-speed transmission helps
reduce weight while ensuring maximum hookup and corner-exiting
punch.
NEW FOR 2002!
Engine:
-
Liquid-cooled, 124cc, reed valve-inducted
2-stroke engine lightweight, compact and boasts numerous
modifications and upgrades for 2002.
- Newly designed cylinder construction features reshaped exhaust
and scavenging ports for harder-hitting low-end response, stronger
top-end power and greater over-rev capacity.
- All-new piston and wider piston ring improves performance while
increasing durability.
- Bigger-bore 40mm (up from 38mm) Mikuni TMX carburetor with
reshaped needle and needle jet ensures precise fuel/air metering
and crisper throttle response throughout the RPM range.
- Digital CD ignition system delivers precise spark and monitors
engine speed to ensure optimal timing for faster, stronger response
during hard acceleration.
- New-design, large-capacity radiator features a 10-row core (up
from 9 rows) with 4 louvers (up from 3) to deliver maximum cooling
efficiency at all performance levels.
- All-new exhaust pipe with redesigned silencer features a
reshaped tapered section for broader power delivery with stronger
low-end hit.
- Redesigned airbox features improved sealing for greater
durability.
- Primary kickstarting ensures easy restarts in any
gear.
- All-new, 5-speed close-ratio transmission (down from 6-speed to
help reduce overall weight) with heavy-duty, multi-plate clutch
ensures optimal hookup for outstanding acceleration and corner
exiting power.
- All-new, high-tension steel, twin-spar frame features
redesigned elliptically curved main pipe and larger-diameter down
tube for greater rigidity and lighter weight.
- Removable aluminum rear subframe now constructed of
square-section pipe for reduced weight.
-
Revamped front fork internals include retooled, two-piece expansion
piston and larger left-side porting for smoother oil flow and
enhanced damping performance.
- Low-friction outer tubes and aluminum piston rods ensure
smoother, more compliant fork stroke for superior handling and
lighter steering.
- Lightweight 46mm inverted Kayaba cartridge fork features 11 .8"
of travel with compression and rebound damping
adjustability.
- All-new hydroformed swingarm is lighter and stronger for
reduced weight, greater rigidity and more compliant rear suspension
action, while an anodized finish gives it a trick, factory
team-style look.
- Rear suspension refinements for 2002 include new shock absorber
settings with revised linkage ratios and a larger pivot shaft for
greater rigidity in conjunction with new swingarm.
- Rear suspension system features fully adjustable Kayaba shock
with 12.4" of travel and separate adjusters for high- and low-speed
compression damping.
- 250mm fully floating front disc and all-new 245mm (up from
240mm) rear disc brakes deliver stronger stopping power.
- Redesigned rear brake caliper support helps enhance braking
performance with added rigidity and durability.
- New, reshaped front wheel hub features a 20mm increase (50 to
70mm) in the bearing span for greater rigidity and sharper, more
controlled steering performance.
- Lightweight 21" front and 19" rear Excel rims provide
exceptional durability and help reduce unsprung weight for optimal
suspension performance and handling.
- Premium Dunlop 739 knobbies offer race-spec traction and
excellent wear.
- All-new seat and fuel tank are flatter, while a retooled
steering crown (repositioned 10mm forward and 5mm upward) and lower
handlebar all help create greater freedom of movement and more
comfortable ergonomics for riders of all sizes.
- New seat, fuel tank, radiator shrouds and side covers feature
all-new graphics.
- New-design fuel tank cap is wider-diameter for easier usage,
while larger tank opening ensures faster, hassle-free
refueling.
- Wide, cleated, folding cast alloy footpegs provide excellent
comfort, grip and ground clearance.
- Cleated rear brake lever and folding shift lever tip offer
superb grip and exceptional durability.
- Repackable exhaust silencer.
- Durable, comfortable handlebar grips.
- Trick, works-style clutch lever features race-spec barrel
adjuster for on-the-fly adjustability.
- Stainless steel clutch cable for longer life.
Specifications:
MSRP |
$4,999* Available from
August 2001 |
Engine |
Type |
124cc, liquid-cooled, reed valve-inducted,
2-stroke |
Bore x stroke / mm |
54 x 54.5 |
Final Drive |
#520 chain |
Compression Ratio |
8.7 – 10.8:1 |
Carburetion |
38mm Mikuni TMX |
Ignition |
Digital CDI |
Transmission |
5-speed w/multi-plate wet clutch |
Suspension |
Front |
46mm Kayaba inverted telescopic fork
w/adjustable compression and rebound damping; |
Travel |
11.8 |
Rear |
Kayaba single shock w/adjustable preload,
compression and
rebound damping & separate hi/b-speed compression
adjuster; |
Travel |
12.4 |
Dimensions/Other |
Tire - Front |
80/100-21 |
Tire - Rear |
110/90-19 |
Length |
84.2" |
Width |
32.6" |
Dry Weight |
n/a |
Height |
51.9" |
Fuel Capacity |
2.1 gallons |
Wheelbase |
56.9" |
Seat Height |
25.6° |
Ground Clearance |
15.7" |
Color |
Team Yamaha Blue/White |
|