Question about 2001 Yamaha WR 426 F

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Why does wr 426 f yamaha misses only in 5th gear

Posted by Anonymous on

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1 Answer

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  • Yamaha Master
  • 43,716 Answers

Hi, Anonymous 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 check for spark leakage in the dark
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. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor damaged, contaminated, sticky float, plugged jets.
13. Fuel filter clogged.
14. Old or contaminated fuel.
15. Fuel tank vent system plugged or carb vent line closed off.
16. Gas cap diaphragm valve faulty.
17. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
18. Carburetor controls misadjusted.
19. Incorrect valve timing.
20. Valve springs floating, weak, or broken.
21. Damaged intake or exhaust valve.
22. Incompatible performance parts.
23. Check for engine trouble codes.
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.
2001 wr426 5th gear spiking
http://www.dirtbikeworld.net/forum/archive/index.php/t-4256.html
YAMAHA WR426F Owner Service Manual
OEM parts for Yamaha
YAMAHA WR450F Owner Manual

Posted on Feb 03, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 2336 Answers

SOURCE: Brakes

First bleed the MC, Remove the brake hose - block the outlet of the MC with your finger - pump the lever and crack you finger loose for an instant to bleed the air out - repeat til only fluid comes out. Quickly install the brake hose. Bleed the brakes by cracking loose the brake hose bolt. Bleed at the caliper bolt. Bleed as normal with the bleeder valve.

Posted on Nov 10, 2008

ipodslinger
  • 688 Answers

SOURCE: Power valve for a wr 200 1985

probably not, go to http://www.bikebandit.com
they sell parts for all semi-vintage bikes i got parts from tham before and they are good and fast shipping.

Posted on Jun 17, 2009

  • 677 Answers

SOURCE: i have a yamaha wr 426 req a back wheel what other

Most of the other wrf wheels will fit.Even a few 250,s.Go for a 400+ plus wheel.Spokes etc are bigger.Hope this helps

Posted on Oct 14, 2009

  • 3567 Answers

SOURCE: did yamaha make a wr 400 in 2004?

I think you will find that the WR426 was last made in 2002. From that point forward it was WR250 and WR450 in the manufacturing line.

Posted on Oct 28, 2009

Nickinfuts
  • 13 Answers

SOURCE: How much to register 2001 yamaha wr 426?

What state are you in? I live in California and have two Yamaha 426 bikes. One is dirt only costs $60 to register Green sticker for two years and the other is street legal and it's registration fees are based on its value and renews every year

Posted on Dec 28, 2009

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1 Answer

Transmission wr 426 2002


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 zero $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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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 zero $ 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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1 Answer

5th gear jerks why does it do that


Hi, Anonymous for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
2001 wr426 5th gear spiking WR 400 426 450
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Yz426f 5th gear is slipping


Hi, Anonymous you may need a new clutch 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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Jun 17, 2012 | 2002 Yamaha YZ 426 F

1 Answer

Yamaha wr 426 f 2002 5th gear ratio


Hi, Anonymous the answer to this question is way above my pay grade and 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 blue links below. Good luck and have a wonderful day.
Primary ratio for WR250 Wr426
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YAMAHA WR426F Owner Service Manual
OEM parts for Yamaha
YAMAHA WR450F Owner Manual

Apr 11, 2012 | 2001 Yamaha WR 426 F

1 Answer

Can i buy this bike? How much is this bike cost if i purchase?


Hi,
I don't know where are you from, but here in Italy you can buy it
with 2000-3500 euros.
http://www.moto.it/moto-usate/yamaha/wr-426-f/index.html
http://www.moto.it/moto-usate/yamaha/wr-426-f/wr-426-f--2000-01/index.html?msg=2874104
Good luck,
Alex
PS-Please don't forget to vote me, thanks!

Nov 24, 2010 | 2001 Yamaha WR 426 F

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

2 Answers

Why does my wr426 slip in 4th and fifth gear


maybe the gear in 4th is slide or it not function properly

May 14, 2010 | 2001 Yamaha WR 426 F

1 Answer

How much to register 2001 yamaha wr 426?


What state are you in? I live in California and have two Yamaha 426 bikes. One is dirt only costs $60 to register Green sticker for two years and the other is street legal and it's registration fees are based on its value and renews every year

Oct 07, 2009 | 2001 Yamaha WR 426 F

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