2000 cr 250 smoking bad at start up

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1/5/2019 3:07 PM

Ok guys i have a quick question. When i start the bike its smokes bad. Just like its super loaded up. Tons of white smoke. Bike runs runs strong with tons of power. Just acts like its premixed super rich with a super rich setting at idle. smokes little while riding. I did notice my coolant was 1/2 low below the top of the radiator. Im thinking its leaking water through the head gasket into the cylinder. oil isn't milky at all. its not leaking on the outside of cylinder. I know the crank seals take a crap also but im thinking i need a new head gasket and make sure the head isn't warped. what you guys think?

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1/5/2019 3:08 PM

Clutch side crank seal

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1/5/2019 3:16 PM

Hillbilly has told you all you need to know.

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1/5/2019 3:20 PM

even if im loosing coolant? i lost a 1/2 inch on one tank of gas and it was 50 degrees out? i had zero residue on my bike where my overflow line is

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1/5/2019 3:43 PM

Oil smoke and steam should be easy to tell the di difference in.

If coolant is pulled in that easy it should blow out the rad fill when full and running.

Coolant would be on the spark plug on cold start up.

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1/5/2019 3:44 PM

I vote coolant leak.... with the white smoke.

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1/5/2019 3:45 PM

Thanks hillbilly, i just figured it was coolant because it was a very white smoke, and my coolant is low.

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1/5/2019 4:15 PM

White smoke means you are burning coolant.

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Ed Johnson

1/5/2019 5:18 PM

On start up it ain't hot enuff to make steam.

The spark plug should tell all.

I
If it vibrates much I'd look on inside and make sure you got a good crank bearings and rod .One needle bearing will kill the cylinder costing more

Just a thought.

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1/5/2019 5:22 PM
Edited Date/Time: 1/5/2019 5:24 PM

mxracer71 wrote:

Ok guys i have a quick question. When i start the bike its smokes bad. Just like its super loaded up. Tons of white smoke. ...more

Is it smokin’ bad or DUPER bad! Need 2 kno.. then I diagnose.

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1/5/2019 5:29 PM

its actually worse after the bike is warm when i start it back up rather then cold start. when its already warm its pretty bad... and then when im riding its smoking like its just rich

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1/5/2019 5:31 PM
Edited Date/Time: 1/5/2019 5:32 PM

So its DUPER bad then.. Thought so. In that case its not good.

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1/6/2019 1:58 PM

drt410 wrote:

So its DUPER bad then.. Thought so. In that case its not good.

lol thanks

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