Question about 2001 Yamaha WR 426 F

1 Answer

Pls help yamaha wr426 back wheel locked up grey/White smoke n droped oil! Loads of compression still but found water behind generator cover and when I took off rocker cover. Water on valves and grey a little grey sludge on rocker cover any help would b great thanks

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,909 Answers

That sounds like it Hydrolocked. Usually caused by fluids enteri9ng the combustion chamber due to a blown gasket or something like that.
Strip the heads off and replace the head gasket, check foe damaged con rods and valves/guides.
That may be it and you will be up and running in no time.

Posted on Oct 24, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What to do if my water is mixing with the oil


What oil is it mixing with. If it is engine oil then have a compression test done to determine head gasket/cracked head. Water ( grey/white colour oil)can also get to the sump from corrosion holes in the timing cover case behind the water pump impellor. If it is oil in the radiator and is pink ,then it will be from a failed oil cooler in the radiator for the transmission allowing transmission oil to get to the coolant.

Jul 01, 2014 | Cars & Trucks

1 Answer

How much oil do I put in a wr426


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.
http://www.thumpertalk.com/topic/121639-help-wr426-oil-change
How to Change your oil LIKE BOSS Yamaha WR426 WR450 wr250
YAMAHA WR426F Owner Service Manual
OEM parts for Yamaha
YAMAHA WR450F Owner Manual

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


Feb 10, 2013 | 2002 Yamaha WR 426 F

1 Answer

How much oil do I put in a wr426


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.
YAMAHA WR450F Owner Manual
OEM parts for Yamaha
YAMAHA WR426F Owner Service Manual
How to Change your oil LIKE BOSS Yamaha WR426 WR450 wr250
http://www.thumpertalk.com/topic/121639-help-wr426-oil-change

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


Feb 10, 2013 | 2002 Yamaha WR 426 F

1 Answer

White smoke belching out but will not start


white smoke is usually water, grey=oil dark grey=other fluids. with the belching and other symptoms i would be inclined to believe you have a blown head gasket.

Nov 15, 2011 | Cars & Trucks

1 Answer

Grey smoke when accelerating at idle or pull off and slow driving


what color smoke? White usually water, blue, likely oil. Bad EGR or PCV valves, Blown head gasket, valve guide seals. Need to do a compression test.
if its black smoke I would suspect a fuel issue. several things will cause this... need diagnosing. If its white smoke you could have a severe issue and it needs to be diagnosed. If its grey smoke you may have oil entering the cylinders and need it to be looked at. If the car is not in your name yet and you need a smog test its the previous owners responsibility by law to fix this. You cant change ownership till it passes smog.

Jun 27, 2011 | Volkswagen Golf Cars & Trucks

2 Answers

Hi i have 98 camry it blow white smoke not only on 1st start, but only sometimes.driving up hill and it is rattling and blow white smoke and the car have not enough power.pls any help suuggestion is very...


Sounds to me like the head gasket is blown, but there may be sealant in the system which is making it intermittently leak antifreeze into the cylinders.

A bad cylinder head gasket will also cause a compromise in compression, which will cause a lack of power.

Time to overhaul or replace the engine's head gasket, or replace the engine with one that doesn't have a blown head gasket.

Good luck on this repair.

Dec 30, 2010 | 1998 Toyota Camry

1 Answer

2002 Yamaha WR 426 F rear wheel locked up


Hi, Brettbury you may have hydraulic lock caused by excessive liquid in the cylinder or you have squeaked your top end this is commonly known as "HEAT SEIZE" the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are:
1. Lack of lubrication due to low or no oil.
2. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.
3. Wrong type of oil used in premix or oil tank.
4. Improper premix ratio you should start with 32:1 as a baseline.
5. New rebuild piston to cylinder tolerances set up too tight.
6. Failure to follow proper break in procedures with a 16:1 premix ratio.
7. Loose fasteners causing intake, base, or head gaskets to leak or blown crankshaft seal, failure caused by age, overheating or walking. 8. Holes in the intake manifold bent or warped intake flange or reed cage any stray air coming into a cylinder will cause a super lean condition.
9. Improper assembly of reed valve gaskets.
10. Insufficient warm up time for temperature conditions before wide open throttle.
11. Broken, pinched or cracked fuel line.
12. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low.
13. Main jet size too small or partially clogged
14. Air filter improperly installed, missing or not sealing.
15. Faulty or improperly adjusted oil pump and or cable.
16. Failure to bleed oil pump after a rebuild/replacement or running oil tank dry.
17. Engine coolant level too low, too old, or improper mixture ratio.
18. Radiator clogged, fins damaged, or faulty cap.
19. No liquid circulation due to failed oil or water pump.
20. Cavitation due to air in oil or coolant system.
21. Water and oil mix due to blown head gasket.
22. Timing retarded due to faulty CKP sensor or CDI.
23. Improper spark plug heat range (too hot) and or gap.
24. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high.
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.
Had my first accident today Rear wheel locked up on the highway Still can...
Does anyone know the problem with WR426F
YAMAHA WR426F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-wr-owners-manuals

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

Oct 23, 2010 | 2002 Yamaha WR 426 F

2 Answers

My oil is grey in my 2003 blaster also I need to know how to put the ckutch plates in it


Mate.I am not sure what a blaster is and it says your bike is a yz125.If you have grey oil in the motor,thats is a very good indicator that something is wearing away the aluminium casings.Quite often a collapsed bearing allowing something to rub or a seized and spun bearing.Before you put the clutch plates back in,I would seriously think about investigating this further.It may take some time but it might save you some big bucks.Hope this helps

Mar 21, 2010 | 2003 Yamaha YZ 125

2 Answers

Car engine throws out thick smoke


look for problem injectors and leaking injector seals

May 09, 2017 | Dodge Neon Cars & Trucks

Not finding what you are looking for?
2001 Yamaha WR 426 F Logo

186 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

D. E. Hev

Level 3 Expert

1187 Answers

Steve Allison
Steve Allison

Level 3 Expert

5569 Answers

vince

Level 3 Expert

1234 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...