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IRISH-RACER-14
12-13-2010, 05:54 PM
can this be done by myself with a press that we use to press bearings(truck and bus use)i got a yz125 that needs a new barrel. looks like i can get a slieve on ebay for 100$.
chucked
12-13-2010, 06:09 PM
maybe, you REALLY have to have it lined up PERFECTLY. also, the block will need to be heated in order to get the old one out and put the new one in.
IRISH-RACER-14
12-13-2010, 06:20 PM
Originally posted by chucked
maybe, you REALLY have to have it lined up PERFECTLY. also, the block will need to be heated in order to get the old one out and put the new one in.

ah my press is home made. big hydraulic ram welded on a big frame. i guess ill have to send the head to be pressed out professionally
trailrider894
12-13-2010, 06:40 PM
My Cousin claims to have heated his up in the stove and then pressed it out and pressed the new one back in, then froze it.
atv fan 28
12-13-2010, 09:21 PM
You will also have to port match the new sleeve to the cylinder. Its just not as simple as dropping in a new sleeve.
cdrookie
12-14-2010, 08:25 AM
my 84 tecate 3 had a nikasil cylinder. my buddy bored it out, we heated the cylinder in the oven and froze the new cast sleeve in the freezer, then dropped it in. it'll have a lip on the top so all you have to worry about is twisting it to line up with the ports as best it can. expect a little grinding to get the ports matched up.
IRISH-RACER-14
12-14-2010, 10:51 AM
i researched and i think its best to send it out to get it re-plated by professionals
IRISH-RACER-14
12-14-2010, 12:09 PM
does anybody in the usa do this? i need a professional to put this

http://cgi.ebay.com/ebaymotors/Yamaha-YZ125-YZ-125-Cylinder-Sleeve-2002-_W0QQcmdZViewItemQQhashZitem1e5c201329QQitemZ13039 4624809QQptZMotorcyclesQ5fPartsQ5fAccessories


into my stock cyclinder
trailrider894
12-14-2010, 12:16 PM
Originally posted by IRISH-RACER-14
does anybody in the usa do this? i need a professional to put this

http://cgi.ebay.com/ebaymotors/Yamaha-YZ125-YZ-125-Cylinder-Sleeve-2002-_W0QQcmdZViewItemQQhashZitem1e5c201329QQitemZ13039 4624809QQptZMotorcyclesQ5fPartsQ5fAccessories


into my stock cyclinder

Link doens't work?
IRISH-RACER-14
12-14-2010, 01:07 PM
ok heres another http://cgi.ebay.com/ebaymotors/Yamaha-YZ125-LC-2002-Cylinder-Sleeve-_W0QQcmdZViewItemQQhashZitem27b342d5b5QQitemZ17051 1226293QQptZLHQ5fDefaultDomainQ5f100

if it doesnt work then heres item code 170511226293