Varlo Posted March 13, 2018 Report Share Posted March 13, 2018 I've got a dt250 piston for my ty! New rings arrived, in box with rings is a thin 50pence shaped ring! Can anyone tell me where it goes? Quote Link to comment Share on other sites More sharing options...
section swept Posted March 13, 2018 Report Share Posted March 13, 2018 Could be a supply error, sounds like you have received 4-stroke piston rings (XT 250) and the expander(50 pence shape-ish) ring is supposed to go behind oil control ring. I could well be wrong ?. GDT and TY OE rings must butt up against the ring locator pegs in the grooves. Quote Link to comment Share on other sites More sharing options...
feetupfun Posted March 13, 2018 Report Share Posted March 13, 2018 photo please Quote Link to comment Share on other sites More sharing options...
Varlo Posted March 13, 2018 Author Report Share Posted March 13, 2018 Spoiler Spoiler Quote Link to comment Share on other sites More sharing options...
Varlo Posted March 13, 2018 Author Report Share Posted March 13, 2018 There correct rings for dt 250 , not seen one like that before Quote Link to comment Share on other sites More sharing options...
faussy Posted March 13, 2018 Report Share Posted March 13, 2018 (edited) Its an expander ring, pretty common in 2 strokes, especially yamaha. Most people leave them out, however if you want to fit it it goes behind the lower ring Edited March 13, 2018 by faussy 2 Quote Link to comment Share on other sites More sharing options...
Varlo Posted March 13, 2018 Author Report Share Posted March 13, 2018 Cheers for that! ?? Quote Link to comment Share on other sites More sharing options...
tony27 Posted March 14, 2018 Report Share Posted March 14, 2018 The rings that came with my TY piston are the same, goes behind the lower ring to help give more sealing pressure Quote Link to comment Share on other sites More sharing options...
Varlo Posted March 14, 2018 Author Report Share Posted March 14, 2018 I installed new rings last night, with expansion ring under lower ring. Give her a run tonight ?? Quote Link to comment Share on other sites More sharing options...
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