Hi guys first post here, long time lurking! I have a DT125X with just under 20,000 at the minute and am wanting to do a top end rebuild as had this bike 4 months now and covered 4000-5000miles, not sure if ever been rebuilt for some reason I'm assuming it's still on stock cylinder and piston at this mileage, possible?
I have a new head gasket en route and am going to measure cylinder soon, to confirm if stock.
I have already had the exhaust off and respayed whilst there I checked through the hole to piston and could see the piston had quiet significant blow-by about 2/3 down walls.. and I also felt previously I'd lost some acceleration and about 5mph top end not much
I am hoping I won't need to rebore and can get away with just honing if possible? I have the tool for honing although I've never used before, any good? Will this increase the cylinder diameter to the point I may aswell rebore? And also does it need recoating, heard stuff about nikosil?
Another question I priced up an OEM piston and all bearing, rings etc @ £130, or I can get a wossner piston kit for £80 or Namura for £50,which one?
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F360851111029