there i was on me m20 combo just comeing to the top of a hill when sudenley bang chuff chuff chuff blody composte gasgets lucky i bought that solid copper one of j michael so no problems there nows my chance to chek out the bore looks good no wear ridge piston looks good but no plus whatever just the numbers 83 with 5 underneth what dos it mean is it a code none only piston manafactors if you know do tell anyway alls snafu now thanks martin

email (option): jmwyatt@btinternet.com

Boy! that was a mouthful, not one comma!

It could be 83.5mm..which is plus .060"...Ian

email (option): ian@wright52.plus.com

you clever man that makes sence sorry about spelling etc i never went to school im going to rebuild over winter so i guess i will get a beter look when i strip down anyway she s runing good for now many thanks martin

email (option): jmwyatt@btinternet.com

i bet douglas is a school teacher i have added these commas for you to use ,,,,,, just put them where you like martin

email (option): roger.back@node6.com

thanks rog i will save them for a rainy day martin

email (option): jmwyatt@btinternet.com