Finally rebuilt the motor. 779 hours 49511 kms. Every bearing in the engine, rod, piston, valves, springs, timing chain, sliders, gear box (got a 60 hour KTM 530 gear box, the same) put a new counter shaft in, Bla bla bla etc..... All genuine parts used.
The whole lot was pretty good, the gearbox was railed though with most of the gears having the hardening taken off. (No cush drive, mostly adv riding and road) will reuse the rod one day, it was great condition. Old Piston had around 680 hours on it
Warning here. I have had the motor down a couple of times for various things, some parts fitted but it is essentially the same engine. Every time I run it from a strip the fine strainer next to the oil drain plug almost instantly blocks (10 minutes running), (I learnt this the hard way a few years ago, rocker seized) I clean it put I back in With the same oil, run it for 20 minutes clean it again still a little gunk on it. During this This full rebuild I was ultra careful cleaning everything during assembly. If I would have kept riding it it would have railed the new top end. Looks almost like lint, paper fibre. For the sake of a few minutes after a rebuild clean the strainer after a few minutes running.
The whole lot was pretty good, the gearbox was railed though with most of the gears having the hardening taken off. (No cush drive, mostly adv riding and road) will reuse the rod one day, it was great condition. Old Piston had around 680 hours on it
Warning here. I have had the motor down a couple of times for various things, some parts fitted but it is essentially the same engine. Every time I run it from a strip the fine strainer next to the oil drain plug almost instantly blocks (10 minutes running), (I learnt this the hard way a few years ago, rocker seized) I clean it put I back in With the same oil, run it for 20 minutes clean it again still a little gunk on it. During this This full rebuild I was ultra careful cleaning everything during assembly. If I would have kept riding it it would have railed the new top end. Looks almost like lint, paper fibre. For the sake of a few minutes after a rebuild clean the strainer after a few minutes running.
