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Posted

Okay so bike keep lossing water radiator gets empty light comes on but after looking all i see is the overflow pipe for expansion bottle on back of bike when riding losses loads of water ? The overflow pipes so long it goes from expansion bottle to front off bike around engine and back up i put it up high so i could see it it deffo lossing water from there but why?? Confused Need help

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  • Moderator
Posted

the head gasket is duff, you shouldnt be using it like this or you risk damaging the head. Buy genuine yamaha gasket, aftermarket options are often crap

Posted

Hi Alf, you need to hear this mate, your head gasket is leaking as Airhead says, not the rad cap or anything else just test the bolts to see if they are done up to the right torque. If they are then you have another problem, your best bet is to whip it off and have a look to see if it's ok but whatever it is you have to take it apart mate. :shrug:

  • Moderator
Posted

err the head gasket is leaking....you hearing this?

Ear_14439206.jpg

  • Like 1
  • Moderator
Posted

could be a number of reasons of course,damaged gasket, bolts not torqued evenly to specification, a crappy gasket (your is a genuine one I know), faces not cleaned properly before the gasket was fitted, warped cylinder head, even a cracked head.

Posted

Well that says it all really, if you scream the shit out of it it's gunna blow, unless you work on it on a regular basis then it will throw more than the head gasket, expect to have a visit from the piston soon it will visit via the side of the cylinder :shakeno:

Posted

its in bits piston looks like new so does bore although a bit of water in there. i took head of and over tightened thermosta bolts and now wont do up. oops. so its in bits now untill Athena kits get on. also looking at spark plug its a light brown its jetting to big 230 jet

thanks

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