1999 Honda CR125 cant hold coolant?

MotocrossMatt · Post by **MotocrossMatt** » 04:34 am Dec 30 2012

Hey guys i have a slight problem here. When i REV but mostly when ridden my CR just squirts all the coolant out the overflow.WHY?

Ive been told it could be the water pump but im not sure why it would do that then anyway. Ive already blown a head gasket when the bike over heated, but thats been sorted now.

Any suggestions? Shot

Enduro_Mayhem · Post by **Enduro_Mayhem** » 04:46 am Dec 30 2012

Sounds as if the system could be pressurising... you sure the head gasket issue's been properly sorted? Could be air entering the system elsewhere... was the head checked for trueness after the HG was replaced/is everything torqued down properly and are the hoses in good order?

rbates9 · Post by **rbates9** » 08:45 am Dec 30 2012

It does sound like a head gasket issue, or could be a crack in the head or cylinder.

Post by **Julien D** » 10:47 am Dec 30 2012

Agree with Rbates.

MotocrossMatt · Post by **MotocrossMatt** » 10:56 am Dec 30 2012

Yeah it was torqued properly. But i do need to rebuild the top end. Piston and barrel are scored. Head was a bit mashed but wasnt to bad. Skimmed it. Ill do a all round check with the hoses.

TheJackRabbit · Post by **TheJackRabbit** » 11:37 am Dec 30 2012

you may also want to check the radiator cap for dirt or cracks and the rubber seal below it

gsa102 · Post by **gsa102** » 07:57 pm Jan 11 2013

CR 125s will stretch the threads for the head studs. Use a drill press (to keep them square) to drill out and helicoil. Very common.

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