Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: ruskee on March 22, 2011, 06:59:34 PM

Title: yz 125 leaking anti freeze outa the over flow
Post by: ruskee on March 22, 2011, 06:59:34 PM

hello my yz 125 is leaking anti freeze outa the overflow pipe it just started doing it and its geting worse any advice??

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: MyckMcClung on March 22, 2011, 07:52:51 PM

Likely causes
your top end is shot,
your water pump is shot, corroded, clogged
radiator hose is pinched
your jetting is too lean
your radiator cap is failiing, not installed right
your oil fuel ratio is too lean on the oil
too hot of a plug
or you need to shift up

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: ruskee on March 22, 2011, 08:17:26 PM

We just put a new top end in because the radiator hose was kinked i think its the water pump myslef just not sure.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: TMKIWI on March 22, 2011, 08:23:52 PM

Check to see if water is flowing when you take the cap off. You should be able to see the water circulating.
Impellers can brake off the shaft.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: ruskee on March 22, 2011, 08:25:08 PM

water is flowing.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: TotalNZ on March 22, 2011, 11:35:33 PM

Blown or incorrectly installed head gasket.
Possibly head studs not tightened down enough after rebuild.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: ford832 on March 23, 2011, 03:28:06 AM

X2.Head gasket is the most likely.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: Coop on March 23, 2011, 03:56:13 AM

Quote from: ford832 on March 23, 2011, 03:28:06 AM

X2.Head gasket is the most likely.

Yep that would be my first guess too.

Title: Re: yz 125 leaking anti freeze outa the over flow
Post by: ruskee on April 13, 2011, 05:14:26 PM

every one that said blown head gasket was correct geting a new one tomorrow