millerme Posted March 7, 2011 Share Posted March 7, 2011 does any one know if i can buy a new bore sleeve for my pinky as its on .75 over size now and would like to rebuild it soon with new piston kit Quote Link to comment Share on other sites More sharing options...
hewson Posted March 7, 2011 Share Posted March 7, 2011 Try birketts first http://birkettmotosportukltd.co.uk/ Quote Link to comment Share on other sites More sharing options...
jack_the_lad Posted March 7, 2011 Share Posted March 7, 2011 does any one know if i can buy a new bore sleeve for my pinky as its on .75 over size now and would like to rebuild it soon with new piston kit I think the sleeve is cast in and would need to be bored out and new sleeve fitted. I am just doing some 320 linners for a ty250. Jack 1 Quote Link to comment Share on other sites More sharing options...
roester Posted March 8, 2011 Share Posted March 8, 2011 does any one know if i can buy a new bore sleeve for my pinky as its on .75 over size now and would like to rebuild it soon with new piston kit They can be re-sleeved - Nigel Birkett (Birkett Motosport) can help. You can bore them out quite a way though - again Nigel does re-boring and can source the pistons - he has got a lot in stock. Best wishes - Alan 1 Quote Link to comment Share on other sites More sharing options...
mattylad Posted March 8, 2011 Share Posted March 8, 2011 You can bore them to 260 or 270cc so no need to resleeve at this moment. 1 Quote Link to comment Share on other sites More sharing options...
old trials fanatic Posted March 8, 2011 Share Posted March 8, 2011 You can bore them to 260 or 270cc so no need to resleeve at this moment. When i had mine i had it bored to 270 and had the inlet manifold shorteded and porting done. Once rejetted the bike was probably the best bike i have ever had and i now wish i had never sold it. Quote Link to comment Share on other sites More sharing options...
millerme Posted March 9, 2011 Author Share Posted March 9, 2011 I think the sleeve is cast in and would need to be bored out and new sleeve fitted. I am just doing some 320 linners for a ty250. Jack what material are you using to make the linner s Quote Link to comment Share on other sites More sharing options...
jack_the_lad Posted March 12, 2011 Share Posted March 12, 2011 what material are you using to make the linner s grade 300 is what i was recomended by supplier. Its not easy to sorce as most suppliers stock 250. Quote Link to comment Share on other sites More sharing options...
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