Question about 2005 Honda CR 250 R

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I rebuilt my carburater on my 2005 cr 250 now my bike will not idle and their is alot of fuel coming out of the overflow. when my bike is cold it starts and runs good after running awile and i turn it off it is hard to start seems like it is flooded out.

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  • Honda Master
  • 2,030 Answers

You need to take it back apart and follow the float level setting directions to the letter.

The float level is very critical.

Also check and make sure you have the needle and seat installed properly.

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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1 Answer

2005 Honda CRF 250 R carb overflow


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
8. Damaged petcock diaphragm allowing fuel to flow through the vacuum line into the combustion chamber.
9. Contaminated fuel tank.
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.
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Honda 2004 CRF250R Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
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Jun 21, 2014 | 2005 Honda CRF 250 R

1 Answer

Bike spits and sputters at top end


Hi, Johnny and the usual suspects are:
1. Inlet system air leak.
2. Enrichener valve not seated or leaking.
3. Damaged or restricted fuel tank vent system.
4. Restricted fuel supply tract.
5. Dirty or damaged air cleaner element.
6. Plugged bowl vent or overflow.
7. Worn or damaged needle or needle jet.
8. Vacuum piston assembly malfunction.
9. Loose or plugged main jets or passages.
10. Improper float level.
11. Accelerator pumps inoperative.
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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Dec 17, 2012 | 2003 Yamaha YZ 250

1 Answer

When i start the bike cold or hot i have black smoke from the exhaust pipes..choke on or off and cant get bike to idle..i turn off the petcock and after a few seconds the idle starts to come back to...


Black smoke indicates that your mixture is way too rich. Now, you didn't say what carb you're running, stock or aftermarket. But, what it sounds like to me is the needle and seat in the carb is leaking fuel and overfilling the float bowl. When you're running down the road, you'll using enough fuel so that the float bowl does not overfill. When idling, you don't use as much fuel, the bowl overfills, and fuel flows into the carb creating a very rich mixture. Is you overflow hose that connects to the bottom of the float bowl connected, clear and open? If so, turn the petcock on without the engine running. If the overflow is clear and the needle valve is leaking, you should see fuel start to flow out of the overflow hose. This is very important that it do this. If the overflow hose is blocked and you forget to turn your petcock off, you could wind up with a couple of gallons of fuel in your engine. It will leak out of the float bowl, into the carb past the intake valves, past the rings and into the engine. I've also seen it get into the primary drive case as well. I'd put a new needle in the carb and check the float setting according to the book. it's sets with the carb on an angle if the carb is the original Keihin CV.

Good Luck
Steve

Jan 29, 2011 | 2003 Harley Davidson FLSTFI Fat Boy

1 Answer

2005 tt r 125 wont idle without choke, fuel


floats out of adjustment remove the bowl check float reset if adjustable or replace

May 09, 2010 | Yamaha TT-R 125 Motorcycles

1 Answer

Coolant leaks


Any of the yz and wrf 250 and 426 ,450 will overheat and water will come out of the radiator if you let it sit and idle.After a hard run it happens quickly.20 seconds.After a cold startup,5 mins.If you own one of these bikes,turn it off after TEN seconds of idling.ESPECIALLY after a hard ride.Basic rule.They do not like to idle.They need air over the radiator......Hope this helps

Mar 09, 2010 | Yamaha YZ 450 F Motorcycles

1 Answer

2005 S50 Boulevard: Fuel from rear carb overflow while starting


it is the needle not seating.pull off bowl of carb and clean with spray carb cleaner.

Jan 29, 2010 | 2005 Suzuki Boulevard S50

1 Answer

Water overflow on my honda cr 250 is blowing out even when cold.is it my head gasget


If the water is blowing out at the cylinder head then yes, the gasket needs to be replaced.

Jun 22, 2009 | 2003 Honda CR 250 R

2 Answers

My neighbor brought his bike to me saying he bike was knocking its 2005 crf250r so i started it started fine but it started knocking i told him it sounds like he needs oil so i check the oil sure enough...


Well i currently ride a new 250 06 crf but the last time i had a knock was on my 2000 cr 250 and that was piston slap cuz the rings where shot..

Apr 21, 2009 | 2005 Honda CRF 250 R

1 Answer

Bike keeps cutting out


sounds like either your fuel vent on the tank is clogged ( the rubber hose coming off the top of the fuel cap) or #2 your spark plugs are fouling out which is probally the most common thing with a 2 cycle engine.

Jan 26, 2009 | 2005 Honda CRF 250 X

1 Answer

Running better in cold


Cold air is denser and you'll get more air in the bike and the engine compensates with more fuel. It's cold as hell at 20F outside but damn does the bike run crisp!,,

Nov 10, 2008 | 2005 Factory bike Chrono SM 250

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