Posted September 20, 201014 yr Hi Team I have just pulled down the xs motor and wish to know if the markings under the skert mean anything (3 & 4 ) are this size if so do we know the size needs bore done so looking at size ? any help would be good Cheers Chris
September 20, 201014 yr Moderator size is usually stamped on the front top. nothing there means standard bore
September 21, 201014 yr Hi Team I have just pulled down the xs motor and wish to know if the markings under the skert mean anything (3 & 4 ) are this size if so do we know the size needs bore done so looking at size ? any help would be good Cheers Chris I just put a new piston in my dt175. There were no markings relating to size on piston I took out. I had to measure with a caliper. Once you have the size you can look up if it is standard, oversize, etc. If you have a shop in mind that is doing the re-bore, they would probably measure for you if you do not have caliper. Good luck.
September 29, 201014 yr Author Hi Team I have messured the piston and yes they are standard, so have ordered 2 new .25 oversize pistons and rings will send bore in soon for rebore . Thanks for the help
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