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Model:
Yamaha YZ 426 F
Year:
2002
Category:
Cross / motocross
Rating:
71.6 out of 100
Engine and transmission
Displacement:
426.00 ccm (25.99 cubic inches)
Engine type:
Single cylinder, four-stroke
Compression:
12.5:1
Bore x stroke:
95.0 x 60.1 mm (3.7 x 2.4 inches)
Valves per cylinder:
5
Fuel control:
DOHC
Cooling system:
Liquid
Chassis, suspension, brakes and wheels
Front suspensiontravel:
300 mm (11.8 inches)
Rear suspension travel:
315 mm (12.4 inches)
Front tyre dimensions:
80/100-21
Rear tyre dimensions:
110/90-19
Front brakes:
Single disc
Front brakes diameter:
250 mm (9.8 inches)
Rear brakes:
Single disc
Rear brakes diameter:
240 mm (9.4 inches)
Physical measures and capacities
Dry weight:
105.0 kg (231.5 pounds)
Seat height:
998 mm (39.3 inches) If adjustable, lowest setting.
Overall height:
1,303 mm (51.3 inches)
Overall length:
2,171 mm (85.5 inches)
Overall width:
827 mm (32.6 inches)
Ground clearance:
375 mm (14.8 inches)
Wheelbase:
1,490 mm (58.7 inches)
General Specifications Item Specification
Displacement L (CID) 4.6 (281)
Number of Cylinders 8
Bore and Stroke mm 90.2 x 90.0
Firing Order 1-3-7-2-6-5-4-8
Oil Pressure (HOT @ 1500 rpm) kPa 138-310
Drive Belt Tension a
Cylinder Head and Valve Train
Combustion Chamber Volume cm 52?±.5
Valve Seats Width?€"Intake mm 1.9-2.1
Valve Seats Width?€"Exhaust mm 1.9-2.1
Valve Seats Angle 44.51-45.01 degrees
Valve Seats Runout (T.I.R.) Max mm 0.025
Valve Arrangement (Front-to-Rear) (Left Hand) E-I-E-I-E-I-E-I
(Right Hand)
I-E-I-E-I-E-I-E
Valve Stem to Guide Clearance?€"Intake mm (Inch) 0.020-0.069
(0.00078-0.00272)
Valve Stem to Guide Clearance?€"Exhaust mm (Inch) 0.045-0.095 (0.0018-0.0037)
Valve Head Diameter?€"Intake mm (Inch) 44.5- (1.75)
Valve Head Diameter?€"Exhaust mm (Inch) 34.0 (1.34)
Valve Head Diameter?€"Gauge Diameters mm (Inch) 42.5- and 32.0
(1.67 and 1.26)
Valve Face Runout Limit mm (Inch) 0.05 (0.002)
Valve Face Angle 45.25-45.75 degrees
Valve Stem Diameter (STD)
?€"Intake mm (Inch) 6.995-6.975 (0.275-0.2746)
Valve Stem Diameter (Std)
?€"Exhaust mm (Inch) 6.970-6.949 (0.274-0.2736)
Valve Springs?€"
Compression Pressure N @
Spec. Length?€"Intake 587.14 N @ 28.02 mm
Valve Springs?€"
Compression Pressure N @
Spec. Length?€"Exhaust 587.14 N @
28.02 mm
Valve Springs?€"Free
Length ( Approximate)?€"
Intake mm (Inch) 49.55 (1.951)
Valve Springs?€"Free
Length (Approximate)?€"
Exhaust mm (Inch) 49.55 (1.951)
Valve Springs?€"Installed
Pressure N @ Spec. Length
?€"Intake 244.64 N @ 40.0 mm
Valve Spring?€"Installed
Pressure N @ Spec. Length
?€"Exhaust 244.64 N @ 40.0 mm
Valve Springs?€"Installed
Pressure N @ Spec. Length
?€"Service Limit 10 % Pressure Less @ 28.02 mm
Valve Springs?€"Installed
Pressure N @ Spec. Length
?€"Out of Square Limit 2 degrees
Valve Guide Inner
Diameter mm (Inch) 7.015-7.044 (0.2761-0.2773)
Rocker Arm?€"Ratio 1.75:1
Valve Tappet?€"Diameter
(STD) mm (Inch) 16.000-15.988 (0.66-0.629)
Valve Tappet?€"Clearance
to Bore mm (Inch) 0.018-0.069
(0.00071-0.00272)
Valve Tappet?€"Service
Limit mm (Inch) 0.016 (0.00063)
Valve Tappet?€"Hydraulic
Leakdown Rate b 5-25 seconds
Valve Tappet?€"Collapsed
Valve Tappet Gap?€"
Desired mm (Inch) 0.085-0.45 (0.0033-0.0177)
Camshaft
Lobe Lift?€"Intake
mm (Inch) 6.58939 (0.2594)
Lobe Lift?€"Exhaust
mm (Inch) 6.58939 (0.2594)
Lobe Lift?€"Allowable
Lobe Lift Loss mm (Inch) 0 (0)
Theoretical Valve Lift @
Zero Lash?€"Intake
mm (Inch) 12.0 (0.472)
Theoretical Valve Lift @
Zero Lash?€"Exhaust
mm (Inch) 12.0 (0.472)
End Play mm (Inch) 0.025-0.165
(0.00098-0.0065)
Journal to Bearing
Clearance mm (Inch) 0.025-0.076
(0.00098-0.003
Journal to Bearing
Clearance?€"Service Limit
mm (Inch) 0.021 (0.0048)
Journal Diameter (All)
mm (Inch) 26.962-26.936
(1.061-1.060)
Journal Diameter (All)?€"
Bearing Inside Diameter
(All) mm (Inch) 27.012-26.987
(1.063-1.0625)
Camshaft Runout
mm (Inch) 0.05 (0.002)
Cylinder Bore
Diameter?€"Surface Finish
(RMS) 0.2-0.6 Microns
Diameter?€"Out-of-Round
Limit mm (Inch) 0.015 (0.0006)
Diameter?€"Out-of-Round
Service Limit mm (Inch) 0.020 (0.00079)
Diameter?€"Taper Service
Limit mm (Inch) 0.006 (0.00023)
Piston
Piston?€"Diameter?€"
Coded Red 1 mm (Inch) 90.177-90.197
(3.550-3.551)
Piston?€"Diameter?€"
Coded Blue 2 mm (Inch) 90.190-90.210
(3.5507-3.5515)
Piston?€"Diameter?€"
Coded Yellow 3 mm (Inch) 90.203-90.223
(3.513-3.5521)
Piston-to-Bore-Clearance
mm (Inch) -0.015 + 0.031 (0.0005-0.0012)
Pin Bore Diameter
mm (Inch) 22.0015-22.004
(0.866-0.8663)
Ring Groove Width?€"
Compression (Top)
mm (Inch) 1.520-1.550 (0.06-0.610)
Ring Groove Width?€"
Compression (Bottom)
mm (Inch) 1.520-1.530 (0.060-0.0602)
Ring Groove Width?€"Oil
Ring mm (Inch) 6.996-7.224 (0.275-0.2844)
Piston Pin?€"Length
mm (Inch) 61.93-62.05 (2.44-2.443)
Diameter mm (Inch) 21.994-21.999
(0.866-0.8661)
Pin to Piston Clearance
mm (Inch) 0.005-0.010
(0.0002-0.0004)
Pin to Rod Clearance
mm (Inch) 0.015-0.040
(0.0006-0.00157)
Piston Rings?€"Ring Gap
?€"Compression (Top)
mm (Inch) 1.0 MAX (0.0394)
Piston Rings?€"Ring Gap
?€"Compression (Top)
mm (Inch) 1.0 MAX (0.0394)
Oil Ring?€"Side Clearance
mm (Inch) 1.25 MAX (0.05)
Oil Ring?€"Compression
(Top) mm (Inch) 0.040-0.090
(0.0016-0.0031)
Oil Ring?€"Compression
(Top) mm (Inch) 0.030-0.080
(0.0012-0.00031)
Oil Ring Snug Fit
Oil Ring?€"Service Limit
mm (Inch) 0.015 MAX (0.0006)
Ring Gap?€"Compression
(Top) mm (Inch) 0.23-0.49
(0.01-0.02)
Ring Gap?€"Compression
(Bottom) mm (Inch) 0.23-0.49
(0.01-0.02)
Ring Gap?€"Oil Ring (Steel
Rail) mm (Inch) 0.05-0.66 (0.006-0.026)
Lubrication System
Oil Capacity?€"Automatic
Transmission (Quarts U.S.) 6.675?±0.125
Oil Capacity?€"Manual
Transmission (Quarts U.S.) 6.425?±0.125
Cylinder Block
Main Bearing Bore
Diameter mm (Inch) 72.401-72.422 (2.85-2.851)
Crankshaft and Flywheel
Main Bearing Journal
Diameter mm (Inch) 67.483-67-503 (2.65-2.657)
Connecting Rod Journal?€"
Diameter mm (Inch) 52.988-53.003
(2.0861-2.0867)
Crankshaft Free End Play
mm (Inch) 0.130-0.301 (0.0051-0.012)
Crankshaft Runout to Rear
Face of Block mm (Inch) 0.050 MAX (0.002)
Connecting Rod Bearings
Clearance to Crankshaft?€"
Desired mm (Inch) 0.027-0.069 (0.001-0.0027)
Clearance to Crankshaft?€"
Allowable mm (Inch) 0.027-0/069 (0.001-0.0027)
Bearing Wall Thickness
(STD) mm (Inch) 2.44-2.452 (0.096-0.0965)
Main Bearings
Clearance to Crankshaft?€"
Desired mm (Inch) 0027-0.065
(0.0011-0.0026)
Clearance to Crankshaft?€"
Allowable mm (Inch) 0.027-0.065
(0.0011-0.0026)
Bearing Wall Thickness
(STD) mm (Inch) 1.920-1.928 (0.075-0.076)
Connecting Rod, Piston and Rings
Connecting Rod?€"Piston
Pin Bore Diameter
mm (Inch) 21.959-21.979
(0.864-0.865)
Connecting Rod?€"
Crankshaft Bearing Bore
Diameter mm (Inch) 56.756-56.876 (2.234-2.24)
Connecting Rod?€"Length
(Center-to-Center)
mm (Inch) 150.7 (5.93)
Alignment (Bore-to-Bore
Max. Diff.) c ?€"Twist
mm (Inch) 0.050 per 25 (0.0015-0.984)
Alignment (Bore-to-Bore
Max. Diff.)?€"Bend
mm (Inch) 0.038 per 25 (0.0015-0.984)
Side Clearance (Assembled
to Crank)?€"Standard
mm (Inch) 0.015-0.45 (0.0006-0.0177)
Side Clearance (Assembled
to Crank)?€"Service Limit
mm (Inch) 0.05 MAX (0.02)
Crankshaft Main Bearing
Journal Taper mm (Inch) 0.020 (0.0007)
Crankshaft Main Bearing
Journal Runout mm (Inch) 0.05 (0.002)
Crankshaft Connecting Rod
Journal Taper mm (Inch) 0.015 (0.0006)
I would suggest either a fuser problem, If all Colors affected, or the Black Toner Cartridge.
The Below chart may help isolate which component is malfunctioning.
Repetitive image defectsMeasurementComponent
24.7 mm (0.97 inch)
Developer sleeve (Print Cartridge)
26.7 mm (1.05 inches)
Charge roller (Print Cartridge)
32.9 mm (1.3 inches)
RS roller
37.7 mm (1.48 inches)
Transfer roller (ETB)
54.5 mm (2.15 inches)
ETB rollers (ETB)
56.6 mm (2.22 inches)
Fuser sleeve (Fusing Assembly)
62.8 mm (2.47 inches)
Pressure roller (Fusing Assembly)
75.4 mm (2.97 inches)
OPC (Print Cartridge)
Some printers detect the type of paper you are using, and print accordingly. Do you have photo cartridges installed? If not, that will trigger an error message. Try putting a smaller amount of sheets in the paper feed- that can sometimes trigger an error message, I've read in reviews. Double check the printer to make sure there, indeed, isn't a paper jam. The type of paper one uses with certain printers can be an issue, so google your printer make and model number and then type something like suggested paper type, or things similar, and you will get some sites that discuss problems with different printers and paper types, and also suggestions of which paper will work well with which printer.
I couldn't find any specific information since I didn't have a make and model number, but hope this general information helps.
Good luck, and thanks for using FixYa.
Actual Machine Dimensions: Width: 530 mm / 21 inches Depth: 577 mm / 23 inches Height: 1039 mm / 41 inches
Recommended clearances: (for ventilation, ease of use, access to features) Front: 915 mm / 36 inches Right Side: 700 mm / 28 inches Rear: 200 mm / 8 inches
Left Side: 315 mm / 12.5 inches
Weight: About 50 Kgs / 110 lbs Weight fully loaded: About 92 Kgs / 203 lbs
Hi ejazmusavi:
Try this.
Toner/developing cylinder 37.7 mm (1.48 inches)
Toner/primary charging roller 37.7 mm (1.48 inches)
Heating element 56.5 mm (2.22 inches)
Transfer roller 45.2 mm (1.78 inches)
Pressure roller 62.8 mm (2.47 inches)
Toner/drum 75.4 mm (2.97 inches)
Feed roller 55.1 mm (2.17 inches)
Hi ,
Follow the steps below -
1. check the media / paper compatibility. It sould be as per hp : Paper tray capacityTypeWeightCapacity Input tray Capacity Output tray
Plain paper
60 to 90 gsm (16 to 24 lb)
150
50 (20 lb paper)
Legal paper
75 to 90 gsm (20 to 24 lb)
150
50 (20 lb paper)
Cards
200 gsm (110 lb index max
30
30
Envelopes
75 to 90 gsm (20 to 24 lb)
20
10
Transparency film
N/A
25
25 or fewer
Labels
N/A
30
30
4 x 6 inch (10 x 279 mm) Photo paper
236 gsm (145 lb)
30
30
8.5 x 11 inch (216 x 279 mm) Photo paper
N/A
20
20
Paper sizesTypeSize
Paper
Letter: 216 x 279 mm (8.5 x 11 inches)
Legal: 216 x 356 mm (8.5 x 14 inches)
A4: 210 x 297 mm
A5 148 x 210 mm
Executive: 184.2 x 266.7 mm (7.25 x 10.5 inches)
Envelopes
U.S. 10: 105 x 241 mm (4.125 x 9.5 inches)
A2: 111 x 146 mm (4.4 x 5.8 inches)
DL: 110 x 220 mm (4.3 x 8.7 inches)
C6: 114 x 162 mm (4.5 x 6.4 inches)
Transparency films
Letter: 216 x 279 mm (8.5 x 11 inches)
A4: 210 x 297 mm
Photo
102 x 279 mm (4 x 6 inches)
127 x 178 mm (5 by 7 inches)
Letter: 216 x279 mm (8.5 by 11 inches)
A4: 210 x 297 mm (8.27 by 11.7 inches)
Labels
Letter: 216 x 279 mm (8.5 x 11 inches)
A4: 210 x 297 mm
Custom
76 x 127 mm up to 216 x 356 mm (3 x 5 inches up to 8.5 x 14 inches)
Print margin specificationsPaper sizeTopBottom
US Letter
US Legal
1.8 mm (0.07 inch)
3 mm (0.12 inch)
ISO A4
ISO A5
JIS B5
1.8 mm (0.07 inch)
6.0 mm (0.2 inch)
Envelopes
1.8 mm (0.07 inches)
14.3 mm (0.5 inches)
Cards
1.8 mm (0.07 inch)
6.7 mm (0.3 inches)
2. paper should be placed to the right of the tray and a little inside with a min distance within the papers of .1 mm
3. open the rear access door of the printer (with grids) on the back and reval the rollers. Take a slight moist cloth ( not cotton ) and clean the rollers with it by moving them 4 times upwards.
4.open the cartridge door ad observe the thin plastic strio on top of the steel rod on which the carriage moves. Take a small piece of paper and hold the strip with it ands swipe it once witout applying much pressure as it could come out in any direction and as much as you can
5. make sure you replace the cartridge if its refilled. It could provide obstruction.
move the carriage 4-5 times continuously with as much speed and make sure there is no obstruction in the carriage movement.
6. press set up button on the printer panel - go to print reports - ok / enter - self test report - see if the paper jams. If not good.. If yes take a look into the next step.
7. pull out the power cable directly from the printer. Press and hold # and 6 button on the printer and insert the power cable and do not release the buttons till you see te display glowing blank or some processing happening. Release the #6. If the printer turns off then press on the power button to turn it on. Continue with country and language settins as apprpriate. Choose your country during this reset. Complete the alignmet then. Take a printout to see if the paper jams again.If yes - the printer definitely needs servicing.
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