Brauap
05-10-2008, 02:47 PM
I know this is the 250R section, but I was told to put this here.
I just bought a 2002 Yamaha YZ125, and I did a compression test and it was around 65psi. So I tore it all apart (motor) and I found out that the cylinder was and pistion where scatched. This is my first dirtbike, as is 2 stroke. I have been told I have to bore it out, and get it re-coated with nicicel and all that.. ( I will post pictures of the cylinder later)
But, would I/should I just buy a used cylinder, new pistions, rings, gaskets, and o-rings? Or should I get it bored, honed, coated with nicicil, bigger pistion, gaskets and o-rings. I am looking for the cheeper method. I found this on eBay:
www.cgi.ebay.com/ebaymotors/Yamaha-YZ125-2002-cylinder-with-stock-bore_W0QQitemZ220231923702QQcmdZViewItem?hash=item 220231923702&
Here are the pictures:
http://i197.photobucket.com/albums/aa283/braaup/100_1990.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1991.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1992.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1993.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1994.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1995.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1996.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1997.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1998.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1999.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2001.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2002.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2005.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2006.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2007.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2008.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2009.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2010.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2014.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2012.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2011.jpg
I just bought a 2002 Yamaha YZ125, and I did a compression test and it was around 65psi. So I tore it all apart (motor) and I found out that the cylinder was and pistion where scatched. This is my first dirtbike, as is 2 stroke. I have been told I have to bore it out, and get it re-coated with nicicel and all that.. ( I will post pictures of the cylinder later)
But, would I/should I just buy a used cylinder, new pistions, rings, gaskets, and o-rings? Or should I get it bored, honed, coated with nicicil, bigger pistion, gaskets and o-rings. I am looking for the cheeper method. I found this on eBay:
www.cgi.ebay.com/ebaymotors/Yamaha-YZ125-2002-cylinder-with-stock-bore_W0QQitemZ220231923702QQcmdZViewItem?hash=item 220231923702&
Here are the pictures:
http://i197.photobucket.com/albums/aa283/braaup/100_1990.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1991.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1992.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1993.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1994.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1995.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1996.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1997.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1998.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_1999.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2001.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2002.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2005.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2006.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2007.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2008.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2009.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2010.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2014.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2012.jpg
http://i197.photobucket.com/albums/aa283/braaup/100_2011.jpg