Question about Yamaha YZ 426 F Motorcycles

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What spark plug fits on my yz 426 f

My husband is trying to find which spark plug suits his bike? what model and type

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  • Yamaha Master
  • 43,690 Answers

Hi, Michelle 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.
spark plug YZ 400 426 450
2002 Yamaha YZ426F Spark Plugs
Yamaha YZ426F Owner Service Manual
OEM parts for Yamaha
Yamaha YZ450F Owner Manual Page 3

Posted on Aug 04, 2016

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Posted on Jan 02, 2017

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drumbanger
  • 1199 Answers

SOURCE: 2001 yz 426 spark plug

Remove plug then reinsert top cap only let plug hang free now kick over starter wile somone watches the plug for spark (the darker the better!)

Posted on Dec 17, 2008

  • 1 Answer

SOURCE: yz 426 wont idle, backfires and bogs out

Hello phwolfe,
Did not backfire but , boged out appling fuel. Found it was flooding because
the floats were over filling the chambers. Adjusted float settings (by eye )
problem solved !! Keeping the chambers 1/2 to 3/4 full worked for me.
My Bike is a 1983 Midnight Maxim 653cc. 4 Cylinder. Maybe yours is fuel injected ?

Best of luck !!

Ron



Posted on Mar 18, 2009

  • 1 Answer

SOURCE: yz 426 f no spark

your cdi box is bad

Posted on Apr 01, 2009

  • 3567 Answers

SOURCE: what spark plug for yz 125?

Hey Ryan, I gotta say "told you so" on the trannie fluid. Go with NGK BR9ES. That is the plug that came in the bike when it was new. As to the clutch plates, you probably can't find just the friction plates. Clutch plates normally come in sets, < pressure plates / friction plates >. If you can find just the friction plates then go for it.

Best wishes, Tombones49

Posted on Apr 24, 2009

  • 11 Answers

SOURCE: how do i check the oil level and top up if needed on my yz 426 01

it might be under the seat take it off and chech to see if its under it

Posted on Jun 10, 2009

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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.
My 2001 Yz426 wont run right please help YZ 400 426 450
few questions about my new YZF 426 YZ 400 426 450
Yamaha YZ426F Owner Service Manual
OEM parts for Yamaha
Yamaha YZ450F Owner Manual Page 3

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.
Yamaha YZ450F Owner Manual Page 3
OEM parts for Yamaha
Yamaha YZ426F Owner Service Manual
few questions about my new YZF 426 YZ 400 426 450
My 2001 Yz426 wont run right please help YZ 400 426 450

Sep 11, 2012 | 2002 Yamaha YZ 426 F

1 Answer

Bike dies when increasing rpm's. Idle's fine.


Hi!!
The spark plug has shortted....
Change the same and all will be well.

Regards
Berry

Jan 31, 2010 | 2002 Yamaha YZ 426 F

1 Answer

2003 yz 426 f hi can you tell me if my bike


Of course, The neutral safty switch is in series with your starter circuit.. three points: at clutch lever, at kickstand and at the transmission.. Do not bypass any of these switches. Good Luck.

Nov 13, 2009 | 2001 Yamaha YZ 426 F

1 Answer

WHERE IS THE FILL PLUG ON A YZ 426


Hi,

Yes, this is where you fil the motor oil.
Don't overfill, this bike uses a dry sump.

Cheers
Jon

Mar 13, 2009 | 2003 Yamaha YZ 450 F

3 Answers

My 02 yamaha yzf 426 is giving me some trouble the spark plug keeps fouling


What plugs are you using,did you try a NGK CR8E?.

When you remove the plug,is it wet with black oily deposits or is the plug dry with a black deposit,also check if the plug has a greyish white appearance,is there deposits between the two electrodes....?If you can give more info maybe I can assist.

Jan 21, 2009 | 2002 Yamaha YZ 426 F

3 Answers

Spark plug


have a look in the owners manual or i a workshop manual and somewere in there it will tell u the best plugs that should be put in the bike. if it continues in my experiences burnt out plugs means the engine is running to hot which means it is iver fuelling. if this is the case try turning the mixture screw down half a turn

Jan 01, 2009 | 2002 Yamaha YZ 426 F

3 Answers

2001 yz 426 spark plug


Remove plug then reinsert top cap only let plug hang free now kick over starter wile somone watches the plug for spark (the darker the better!)

Dec 17, 2008 | 2001 Yamaha YZ 426 F

2 Answers

TROUBLE STARTING BIKE HELP


If the spark plug is not getting a spark then you will need to replace the starting coil! the bike wikk start then !...Is the engine getting fule?

Dec 17, 2008 | 2001 Yamaha YZ 426 F

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