Question about 2004 Yamaha YZ 250 F

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Hard to start Yamaha yz250f hot

Hard to start when hot

Posted by Anonymous on

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  • Yamaha Master
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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.
04 yz250f wont start when hot WR YZ 250F
Dirt Rider Magazine
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Posted on Jul 31, 2016

5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

firenut119
  • 66 Answers

SOURCE: need a transmission main axle for a 08' or 09' Yamaha yz250f

http://www.yamaha-factoryparts.com/

order the part online... you will not be able to get the part from the local bike shop as an in stock part...hope this helps

Posted on May 13, 2009

zaldyboy01
  • 293 Answers

SOURCE: i have a 2004 yamaha yz250f it will only start with starter fluid

check the carburator if there is a gas goes to it

Posted on Aug 30, 2009

  • 1 Answer

SOURCE: My Yamaha yz250F 07 starts first kick but back

I see: you changed the plug because it was backfiring.

Does it back fire when you let OFF the throttle after revving it, or does it back fire while being revved?

If it does it when you let off then Ollie's suggeston might do it. If that doesn't do it then check for dirt in your pilot jet.

If it back fires when revved up high could be dirt in your main jet.

Posted on Nov 01, 2009

aquaman987
  • 927 Answers

SOURCE: 2006 YZ250F.... starts if I use a "Starting" spray

It sounds like you aren't getting gas.
Make sure that the fuel line is delivering fuel.
Disconnect the fuel line, get a safe container, no smoking, turn engine over and ensure gas flow.
Gary

Posted on Jul 15, 2011

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1 Answer

Getting hot


Hi, Anonymous and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant and needs bleeding.
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.
Dirt Rider Magazine
YZ250f starting and idling overheating problem
Yamaha YZ250F 2008 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jul 08, 2014 | 2003 Yamaha YZ 250 F

1 Answer

Hard to start when hot


strip and clean the carb and fuel tank ! check condition of plug and plug cap connection to ht , check resistance of plug cap also !

Feb 18, 2014 | 2008 Yamaha yZ250F

1 Answer

Manual yz250f


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.
Yamaha YZ250F 2008 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals
How to make you Yz250f pump out 45 HP
2008 Yamaha YZ250F

Jan 26, 2014 | 2004 Yamaha YZ 250 F

1 Answer

My yz250f is taking too many kicks to start it


Hi, Randall and the usual suspects are:
1. Enrichner system plugged, not properly functioning or improperly operated.
2. Fuel overflow.
3. Restricted fuel supply.
4. Gas cap and or fuel tank not venting properly.
5. Plugged slow jet or passages.
6. Inlet system air leak.
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.
Once again YZ250F hard to kick start BUT VALVES ARE IN SPEC WR YZ 250F
http://www.dirtbikeworld.net/forum/archive/index.php/t-23849.html
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Apr 25, 2012 | Yamaha YZ 250 F Motorcycles

1 Answer

Why does my 04 yz250f run to hot


Hi, Anonymous and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant and needs bleeding.
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.
Dirt Rider Magazine
YZ250f starting and idling overheating problem
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Apr 04, 2012 | 2004 Yamaha YZ 250 F

1 Answer

Hard to start 2011 yz250f


Hi, Chris and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery nearly discharged, should have 12.5 volts.
4. Discharged battery, 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.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Intake air leak.
9. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
10. Enricher valve inoperative.
11. Engine lubricant to heavy (winter operation).
12. Ignition is not functioning properly (possible sensor failure).
13. Faulty ignition coil.
14. Valves sticking.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
2011 yz250f hard to start
Dirt Rider Magazine
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Oct 28, 2011 | 2004 Yamaha YZ 250 F

1 Answer

My 2002 yz250f takes a very long time to start, and countless kicks to start it. but one it starts it runs fine untill it tuns off cold and hot verry hard to start.


I would check sthe spark plug gap. Set it to 0.9mm
If too close it won't ignite properly also is the exhaust pipe standard? If not the timing and mixture will need adjusting.
Hope that helps.

Feb 25, 2011 | 2003 Yamaha YZ 250

1 Answer

Hard starting my 09 yamaha 250f when hot


Hi, Dans04gt and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery nearly discharged, should have 12.5 volts.
4. Discharged battery, 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.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Intake air leak.
9. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
10. Enricher valve inoperative.
11. Engine lubricant to heavy (winter operation).
12. Ignition is not functioning properly (possible sensor failure).
13. Faulty ignition coil.
14. Valves sticking.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
Dirt Rider Magazine
04 yz250f wont start when hot WR YZ 250F
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Nov 14, 2010 | 2004 Yamaha YZ 250 F

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