Yx 150/160 rings issues

[Will scott]

Hi I am having issues with the piston rings in my 160s, I've had 2 now all of them keep wearing out the oil rings in about 10 to 15hrs of use one of which was a tb head kit with the 60 mm high comp piston. I just bought a cheap yx 150 with low hours and the rings have gone to in 2 rides to. I'm not sure if it's the oil I use as I've rang local shops like dhz and they say what I'm using is fine. I live in Australia as we know it's quite hot so I run 20w50 mineral Penrite MC oil some ppl say u should run 10w40. Is that to thin for my climate? Or is this just the go with these bikes and the China rings don't last. I always clean my airfilers regularly and use Penrite air filter oil, run uni filters, change the oil every 5 hrs... I don't understand why this keeps happening any suggestions? Kinda getting sick of this

 

[Jope22]

Never heard of this issue but about the oil, I think the 20W50 is good in Australia. I used 20W50 in my 125 in Finland where the weather is a lot colder than in Australia and it was fine. In my 125 its had little too much play in the rockers because I adjusted them wrong with 10w40 they knocked but 20w50 fixed the sound. TB is very good quality so its very weird that their rings wear out that fast

 

[Will scott]

Yea it's very weird everybody tells me its unusual for tb and the oil brand is very expensive to its 55$ a bottle witch is alot for 4 litres, I was running just shell mineral 20w50 car oil it my 125 n I got about 130 hrs before it started smoking n that oil was 25$ a bottle so I have no idea. Has anyone else had issues?