help with my cr125

jomo777 · 01-14-2008, 05:43 PM

hey i have a cr125 that is giving me trouble it was rebuild four months ago. and was working fine. but one day i lost my powerband. it just dosinet go fast no push with the powerband just slowly revs out then goes to a meduim reve what could cause this.

wr250f95 · 01-14-2008, 06:21 PM

low compression

cr250jd · 01-14-2008, 08:13 PM

cracked head or block, any damage to your pipe? mine did that to some degree when i dented it, but nothing too bad...
when it stopped revving correctly, were you running it really hard, by that i mean, winding the gears out, and then some?

gscx · 01-14-2008, 08:36 PM

this is caused by either your powervalves staying closed, or a extremely small hole in your piston, is it hard to start, because if it is then you more than likely have a hole in your piston, if it has a hole your bike is running lean, which is more than likely because it is getting cold around the country, go to the how tos on how to learn how to jet your bike. but take the cylinder off and check it out, either way it will have to come off

01-14-2008, 05:43 PM	#1 (permalink)
jomo777 C Rider Join Date: Jan 2008 Posts: 1 iTrader: (0)	help with my cr125 hey i have a cr125 that is giving me trouble it was rebuild four months ago. and was working fine. but one day i lost my powerband. it just dosinet go fast no push with the powerband just slowly revs out then goes to a meduim reve what could cause this.

01-14-2008, 06:21 PM	#2 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 8,444 iTrader: (1)	low compression __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-14-2008, 08:36 PM	#4 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,319 iTrader: (0)	this is caused by either your powervalves staying closed, or a extremely small hole in your piston, is it hard to start, because if it is then you more than likely have a hole in your piston, if it has a hole your bike is running lean, which is more than likely because it is getting cold around the country, go to the how tos on how to learn how to jet your bike. but take the cylinder off and check it out, either way it will have to come off __________________ 199? KX60- Bone stock and in process of complete rebuild and restoration

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01-14-2008, 08:13 PM	#3 (permalink)
cr250jd C Rider Join Date: Jan 2008 Location: kentucky Posts: 31 iTrader: (0)	cracked head or block, any damage to your pipe? mine did that to some degree when i dented it, but nothing too bad... when it stopped revving correctly, were you running it really hard, by that i mean, winding the gears out, and then some?

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