I just picked up a 1986 lt250r. It currently has a bore of 72mm and a 39mm carburetor. With I got it I was told it needed piston aappreciatednd rings. I ordered the piston, rings and gaskets kit.when I was changing it out the jug fell and broke the cylinder sleeve skirt. I ordered a new stock sleeve and is has a smaller outer diameter than the current sleeve (About a 1/4" of difference for the outer diameter) the new sleeve appears to press in from the top of the jug and the current one appears to press in from the bottom of the jug.
So my question is, is this a stock jug, aftermarket jug, big bore jug, or did they send me the wrong sleeve
Any info would be greatly appreciated
There is not any such thing as a stock replacement sleeve. The original sleeve has ribs and is thicker in some areas that others. Suzuki cast the aluminum cylinder around the original sleeve.
Putting a thin sleeve inside an iron sleeve is what most shops do to try to compete with all of the internet based shops in their price wars. You need what is called a heavy duty sleeve which is about 1/4" thick. It is more expensive and cost a lot more to install because all of the original iron liner must be machined out.
We only install the heavy sleeves and do not try to compete with all of the shops that are having a going out of business sale. If they install thin sleeves, you will probably not want to go back to them or recommend them to anyone because of the problems associated with the workman ship and sub-standard knowledge about the results associated with using a thin sleeve in an iron bore.