Wild Dog Adventure Riding

Technical Section => Make / Model Specific Discussions => KTM LC4 400/610/640 & 690 => Topic started by: geopat on December 20, 2016, 10:42:56 pm

Title: oh shit
Post by: geopat on December 20, 2016, 10:42:56 pm
Hey guys my 690 died on me after 35000km

my bike ran low on oil once due to worn exhaust valve stem seals that wasnt picked up in a service (stopped riding as soon as the warning light came on) but when she died she had done another 3000km and was full of oil seems a piece of the piston broke off and went through the valves. Anyone seen a failure like this before? The bike is busy being re built have you guys got any advice on what I can replace while its open to ensure she keeps going for as many miles as possible

Cheers

George
Title: Re: oh shit
Post by: Amsterdam on December 21, 2016, 09:31:38 am
I have had a similar failure on my Kawasaki ZX10R.  Piece of a specialized high compression racing piston broke, destroying the valve and damaging the head.  Don't know why as that bike is always maintained in tip top condition.  Good luck with your rebuild.
Title: Re: oh shit
Post by: geopat on December 22, 2016, 04:37:37 am
Thanks mate hopefully she will be good for a long time after this

and I managed to figure out how to resize pics so heres the damage