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  #1  
Old 08-27-2016, 12:00 AM
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Default 2000 CR250 not starting please help

     

I have a 2000 cr250 and it wont start. The last time the bike ran it would not kick start, it would however pop start. Also at that time fuel was pouring out of the carb overflow unless i opened the throttle. At that time i stored the bike for a couple of years.
Fast forward to now. I purchased a rebuild kit and rebuilt he carb. Fuel is no longer pouring out the overflow tube when the fuel is on. I also changed the spark plug. The bike will not start no matter how many times i try to kick start it and i have tried a lot. I pulled the plug wire off the spark plug and used a brand new spark plug i had laying around to test for spark while i pushed the kick starter down with my hand. It was the only way i could do it by myself to check for spark. There is definitely spark as it shocked me and i could see a spark. Not sure if i"m imagining this but the kick starter seems easier to kick then i remember. I'm pretty sure it was more difficult before. Could this be compression related? I haven't tried to pop start it. Last time i had to have a friend pull me with his truck to get enough momentum to actually pop start it. I'm in a residential neighborhood where i probably shouldn't try this. So what do you guys suggest I do, try, buy or not do, try buy.
Thanks for reading this and I would greatly appreciate any and all advice.
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Old 08-27-2016, 02:12 AM
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welcome to the forum

avoid pop starting it, might cause damage to the transmission, now start from here

1) do a cylinder compression test
2) check that the carburetor float level is correct
3) check the carburetor jets are all clean and air screw is about 1 1/2 turns out
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Old 08-27-2016, 07:25 AM
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You could also easily check if the ignition timing is set to the correct mark.
Ground plate groove needs be aligned with the bottom rib/mark of the crankcase.
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Old 08-27-2016, 02:39 PM
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Default CR250r not starting replies

Thank you for the welcoming me to the forums. Looking forward to being a productive member on ATM

Regarding the replies which by the way are greatly appreciated.

- Per byronk's recommendation I won't pop start my bike

Questions I have regarding these responses:

"1) do a cylinder compression test"
- Do I need an motorcycle (2 stroke) specific compression tester or can i just go to an auto parts store and buy one? If so will and inexpensive compression tester suffice?
2) check that the carburetor float level is correct
- Please advise on proper method of checking float level
3) check the carburetor jets are all clean and air screw is about 1 1/2 turns out
- I will do that

"You could also easily check if the ignition timing is set to the correct mark.
Ground plate groove needs be aligned with the bottom rib/mark of the crankcase.
- Please explain how to do this.

Thanks
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Old 08-27-2016, 02:57 PM
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The very first thing on your plate should be to pick up a service manual for your ride. This will explain a lot and help you.
You may be able to pet a loaner compression tester from an local auto parts place.
Remember that YOUYUBE.com is your friend when it comes to finding videos to show how to do things.

Paw Paw
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Old 08-27-2016, 03:24 PM
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PawPaw i do have a PDF version of the service manual for my bike. Its good but i cant search for specific data. i should just print it that way I have it next to me when I'm working on my bike. As far as the compression tester I'm still not sure if I can use an automotive one or need a motorcycle (2 stroke) specific tester. I will look for videos on the recommended troubleshooting steps people have suggested.
Thanks
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Old 08-27-2016, 04:05 PM
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As I stated, an auto unit will work .
Read and study your manual as it has most of the info you desire. A PDF version is hard to use. Print it out and put in a binder.


Paw Paw
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Old 08-27-2016, 11:05 PM
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Look at ebay they have a few for this model.
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Old 08-28-2016, 12:02 AM
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PawPaw, I'm confused about the ignition timing. According to the service manual "the ignition timing is factory preset and need only be checked when an electrical system component is replaced." Irregardless I will check it. I attached an image of what I believe you are referring to. Please confirm.
I will definitely put the manual in a binder once I print it as I have a feeling I will be referencing it a lot. Thank You
Attached Files
File Type: pdf Ignition System.pdf (464.6 KB, 10 views)
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Old 08-29-2016, 02:33 AM
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I explained it pretty clearly, the manual says the same.
Check if the marks align.
If the ignition is advanced or retarded too much it will give problems.
Your bike is 16 years old and you have problems so you need to check if things work correctly or not and how it is tuned.
Who knows who messed with components, switched out different build years of various parts and such.
Never assume it is ok until you're sure, and even then there can be surprises.
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