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fetch · 07-29-2008, 05:30 PM

Hey everyone,

I recently bought a 1991 CR 125, Runs pretty good, Starts first kick, but there are a couple of issues I was hoping I might get some help with.

1) There is quite a bit of Oil/fuel Mixture blowing out of the exhaust right next to the Flange, New gasket? or new top end? I have heard when compression is low the oil part of the mix will not burn off and it just sort of drips out of the exhaust, is that what I am seeing all over the front of the motor?

2) it seems the chain is very loose, Can I just loosen the rear wheel, and slide it back to tighten it up some?

3) The bike will not idle, you have to give it a small amount of throttle to keep it running. carb probably not adjusted properly, where should I look to
get enough fuel flowing to let the bike idle?

Thanks in advance for any help!!

07-29-2008, 05:30 PM	#1 (permalink)
fetch Newbie Joined: Jul 2008 Bike: 1991 CR 125 - 1989 KX 125 Posts: 3	1991 CR 125 Top End?? Hey everyone, I recently bought a 1991 CR 125, Runs pretty good, Starts first kick, but there are a couple of issues I was hoping I might get some help with. 1) There is quite a bit of Oil/fuel Mixture blowing out of the exhaust right next to the Flange, New gasket? or new top end? I have heard when compression is low the oil part of the mix will not burn off and it just sort of drips out of the exhaust, is that what I am seeing all over the front of the motor? 2) it seems the chain is very loose, Can I just loosen the rear wheel, and slide it back to tighten it up some? 3) The bike will not idle, you have to give it a small amount of throttle to keep it running. carb probably not adjusted properly, where should I look to get enough fuel flowing to let the bike idle? Thanks in advance for any help!!