Question about 2002 Yamaha YZ 426 F

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I have a yzf 426 yamaha. What fuel do I put in it? What oil do I put in it? Is it a 4 stroke motor bike? Please help me - Thankyou!

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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)

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How much gearbox oil do i need to put in the ame bike

Posted on Feb 09, 2013

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1 Answer

Oil capacity for a 2001 yamaha yzf 426


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Dec 30, 2013 | 2001 Yamaha YZ 426 F

1 Answer

Yamaha yzf 426 fifth gear miss fire


Hi, Buzaa and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking.
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Intake air leak.
10. Water, dirt, or rust in the fuel system, carburetor and/or filter.
11. Fuel tank vent system plugged or carburetor vent line closed off.
12. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
13. Carburetor controls misadjusted.
14. Damaged carburetor.
15. Incorrect valve timing.
16. Weak or broken valve springs.
17. Damaged intake or exhaust valve.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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Yamaha YZ426F Owner Service Manual
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Sep 11, 2012 | 2002 Yamaha YZ 426 F

1 Answer

Yamaha yzf 426 fifth gear miss fire


Hi, Buzaa and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking.
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Intake air leak.
10. Water, dirt, or rust in the fuel system, carburetor and/or filter.
11. Fuel tank vent system plugged or carburetor vent line closed off.
12. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
13. Carburetor controls misadjusted.
14. Damaged carburetor.
15. Incorrect valve timing.
16. Weak or broken valve springs.
17. Damaged intake or exhaust valve.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Sep 11, 2012 | 2002 Yamaha YZ 426 F

1 Answer

How to set carb on 2003 yamaha 450 yz


Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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http://www.yamaha-motor.com/assets/service/manuals/2004/lit-11626-17-11_784.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Sep 01, 2012 | 2004 Yamaha YZ 450 F

1 Answer

New to the whole 4 stroke thing so I figured I'd


Hi, Duke_fan31 for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Yamaha YZ426F Owner Service Manual
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Apr 18, 2012 | 2001 Yamaha YZ 426 F

1 Answer

Can any one tell me how to check oil on a 2001 yamaha yzf 426. just bought the bike and when cold i check oil with dip stick dar is no oil on it. and a few people told me you have to warm it up for a...


426! Check and add when it's cold.Oil will expand when it's hot.There is not a lot of oil in the engine, so the tank takes up any minor diffs.The tank supplies the motor with oil and a slight under or overfill will occur.The main thing is, if the tank has oil.Oil is cheaper than metal.Just make sure the tank has oil in it.Tank has oil.Engine has oil.Hope this helps

Sep 28, 2010 | Yamaha YZ 450 F Motorcycles

1 Answer

Need help on the letter


WR stands for wide range if I remember in 1989 there was the YZ250 and the WR250 both two strokes.
The WR was the enduro model with a wide range gear box. low first gear and overdrive in top
The WR four strokes started around 1998, but Im not sure if the gearbox are much different to the YZF.
In australia there is a compliance plate on the headstem with model ID.

Jun 13, 2010 | 2001 Yamaha WR 426 F

3 Answers

Do i need to drain old oil before toping up new oil. only done 500 miles. the oil seems empty? am hoping i can just pour new oil in? its a 4 stroke engine. what oil do i use? thanx. 2009 model.


You would be better off to drain the oil this time. The first 500 miles on a bike is going to break it in. All sorts of metal parts "polish" up during break in. It would be best to rid the bike of the old oil.

Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. If in a hot area like Texas or New Mexico go with 20w50.
131c7f2.gif Can I get a “very helpful” rating on this answer?

Aug 15, 2009 | 2008 Yamaha YZF-R125

3 Answers

1997 yamaha yzf 600r electrical problems


a jump box is nothing more then a battery with leads on it so where are you connecting it verses the new battery you put in the bike. that doesn't make since unless you are connecting the box right to the starter motor then it be constently running the motor untill you unhooked it. check all your fuses and examine all wire harnesses for damage, burns, or any mellting.

Dec 17, 2008 | 1997 Yamaha YZF 600 R thunder cat

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