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cr125 break-in problem
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kslik14
New User
| Posts: 5
| Joined: 03/08
Posted: 03/19/08
03:41 PM
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I have a 1997 cr125 and i have just rebuilt the motor over the winter(new wiseco piston, and all gaskets replaced). So today i go to fire it up and it starts within 3 kicks and use the heat cycle break-in method to get it up to temperature and then i let it cool off for about an hour. Then i start it again and it runs for about a minute and then suddenly stops. I try to kick it again and it just turns over. I tried changing the plug, set it back to stock jetting, and checked the fuel but it still wont start.
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Posted: 03/19/08
05:06 PM
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I would look through exhaust port, with the expansion chamber removed and check for any scoring on cylinder first. Second, I would check compression(165-175psi). If it has compression, check for spark--I know you probably did that, but I had to say it. If it has compression, spark, and fuel the next place to check is reeds/carburetor/powervalve--make sure it is not stuck open--that sometimes happens when you put the cylinder back on and do not get the linkage hooked up right. Keep us posted with details of your findings! Good luck
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yzwoods
Addict
| Posts: 11388
| Joined: 05/06
Posted: 03/19/08
05:33 PM
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Sounds like the bike is good to go. With a new plug, Do my cold start procedure. Wich is standerd and stock.
Let warm GOOD then take off and let us know.
Warm the bike with the choke!
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Ruff!
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kslik14
New User
| Posts: 5
| Joined: 03/08
Posted: 03/19/08
05:57 PM
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i havn't tried the compression test so i will try that.
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