Question about Honda CRF 250 R Motorcycles

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Hi my 07 crf 250r seems to be over heating as coolant and steam was being pushed out the breather pipe what causes that thanx

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Sounds like a bad seal on the water pump is letting coolant into the gearbox. The pressure blowing the steam out is from blow-by > compression getting past the piston rings. Having some blow-by is normal. That's why they have a crankcase breather. Please rate my answer. Thanks!

Posted on Mar 27, 2011

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Spits gas and smokes alot from the tail pipe


Hi Dave,

I appreciate you asking mr to help you with your problem.
However, I am not really certain what you are describing here. Are you saying that you have RAW, UNBURNED FUEL coming out the tailpipe? Or are you saying that there is an excessive amount of LIQUID coming out the tail pipe and you are not really sure WHAT it is?

If the latter is the case, and you have a lot of white steam coming out of the tail pipe, you really need to check your engine coolant level. You could have something like a blown head gasket causing this. A blown head gasket will cause the engine to push engine coolant out the exhaust.

Oct 30, 2011 | 2000 Mazda Protege

Tip

Hot Water Steam Efficiency Plus Comfort


Steam heat is a great warm, wonderful, and absolutely fabulous way to heat your house. Steam heat is almost always created from water in a boiler fueled by gas, oil or electricity. It then passes through pipes and radiators or convectors to heat your home. A steam heating system uses steam that is generated from a boiler. When the water boils, the steam rises through the pipes and into the radiators to heat them. The hot radiators then heat your home.

Steam is a great heat distribution medium because it moves easily through your system and it has an extremely high heat-holding capacity. The heat-holding capacity of steam is much greater than that of water. Steam heating systems often operate at very low pressures and usually under 220°F. Steam heat is usually distributed by either one or two pipe systems. In a case of a one-pipe steam heating system, a single main serves the dual purpose of supplying steam to the heat exchanger and allowing condensate to run back from the radiators also. A two-pipe system has two connections from each heat exchanger or radiator. In this system, steam and condensate flow in separate piping from each other. With a steam system all pipes must be well insulated and you must use pipe insulation rated for steam piping. If the insulation is removed the system will no longer work as designed. Noise and all sorts of problems will come from uninsulated piping.

When you have radiators on upper floors or radiators that are further from the boiler they should be adjusted to release more air to compensate for the increased air volume in the piping due to the distance from the boiler. If you have a valve that is clogged with mineral deposits or stuck shut, no air will be able to get out of the piping. Because of this no steam can enter the radiator, so it doesn't heat up. This will block the movement of steam into the radiator, or cause a very noisy hammering as pressurized steam tries to get through this water "dam".

Steam radiators need to have a valve that allows air to escape at a controlled rate so that the radiator can heat up. Steam heating systems will also lose a little bit of water all the time, so there has to be water makeup so that you do not run your boiler dry. Steam heating systems without an automatic water feeder are not safe. You will risk serious boiler damage should boiler water be lost. If the boiler runs dry it could also explode if water is placed into it while it is hot. There should always be a low water cutoff installed on every steam system. Therefore on a steam boiler the automatic water feeder serves as a safety device also.

It is very important that you find someone that is very familiar with steam heating systems when repairing or installing steam heating. Incorrectly designed, installed, steam systems and condensate piping is a huge problem in today's buildings and facilities. There are not many qualified to design and install properly operating steam heating systems. Incorrect steam piping will always cause costly premature failure of steam equipment such as steam coils, heat exchangers, and control valves. Not to mention the higher cost of operating a system that is not working efficiently.
http://www.fixya.com/support/r3904286-steam_system_steam_radiator_air

http://www.fixya.com/support/r4008078-differences_between_steam_hot_water

on Dec 29, 2009 | Heating & Cooling

1 Answer

Honda XR 250 R blowing oil out of breather hoses


Hi, Big_a08 and the usual suspects are:
1. Oil tank/system overfilled.
2. Faulty breather valve.
3. Engine breather hose bent, pinched, kinked etc.
4. Air filter has too much "pre-oil".
5. Crankshaft seal failure allowing transmission fluid to migrate.
6. Blow by drain tube cracked/split or filled to capacity.
For more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
oil coming from hose
Losing oil from crankcase breather hose 06 crf 250r
Honda XR250R Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda XR250R Owner Manual

Jul 24, 2011 | Honda XR 250 R Motorcycles

1 Answer

My 04 crf 450 is leaking oil out of the air box breather


Hi, Jmattison21 and the usual suspects are:
1. Oil tank/system overfilled.
2. Faulty breather valve.
3. Engine breather hose bent, pinched, kinked etc.
4. Air filter has too much "pre-oil".
5. Crankshaft seal failure allowing transmission fluid to migrate.
6. Blow by drain tube cracked/split or filled to capacity.
For more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Engine Oil leaking out of my CRF 450 air Box
Oil coming out of airbox 2012 CRF 450
Honda CRF450X 2005 Service Manual
OEM parts for Yamaha
Honda CRF450R Owner Manual

Dec 22, 2010 | 2004 Honda CRF 450 R

1 Answer

CRF 250R Repair Manual


Go to the Honda Riders Club and check the benefits of membership . . . . . http://hrca.honda.com/

May 29, 2010 | Honda CRF 250 R Motorcycles

1 Answer

2005 CRF 250R KICK START WOULD NOT MOVE REMOVED


if you mean it doesnt fold out. it is held in with a spring and ball so may just need some spray lube and a little use

Apr 15, 2010 | 2005 Honda CRF 250 R

2 Answers

Are the frames the same? 05 crf 250r and a 07 crf


No. Honda has a very crafty way of making two different models look like they have parts that will interchange, when - in reality - they are totally different. That goes for not only the major components like frames, but for nearly every part, on nearly every model. Very little in the way of parts interchangeability.

Nov 07, 2009 | 2005 Honda CRF 250 R

2 Answers

How do i replace the throttle slide on 250R


REMOVE SEAT AND FUEL TAKE, YOU HAVE TO GET TO TOP OF CARB. THE TOP SCREWS OFF AND SLIDE OUT THE THROTTLE SLIDE. YOU HAVE TO COMPRESS THE RETURN SPRING AND PUSH THE CABLE AND HOLDER DOWN . YOU WILL SEE A SLOT IN THE SLIDE THE CABLE AND SPRING HAVE TO COME OUT OF THE SLOT ON THE END OF THE CABLE IS WHAT HOLDS THE CABLE IN THE SLIDECOMPRESS THE SPRING AND THE CABLE WILL THEN HAVE PLAY TO REMOVE THE CABLE FROM THE SLIDE, REPLACE THE SAME WAY

Aug 21, 2009 | 2005 Honda CRF 250 R

1 Answer

Cooling system


1)yes steam will come out of the resevoir,especially with a bad rad'cap.
2)thermostats are cheap.
does your cooling fan come on?,it may be a bad sensor or relay (for fan)
3)no heat in car!?,the water pump may be bad.or the heater core is plugged,or if you have:a bad coolant valve for cab heat.(but this wont cause motor-over heating issues!)
4)you have a plugged radiator!

--sounds like a bad waterpump to me.
even if it doesnt leak,the impellers still come loose from the shaft!!

Dec 22, 2008 | 1998 Chrysler Concorde

1 Answer

Seems to be overheating


Antifreeze may be leaking check carefully to see where exactly is the steam coming from and get back tome.

Dec 18, 2008 | 1995 Subaru Impreza

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