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Piston Rings?

Started by Tor-King, January 05, 2018, 04:39:16 PM

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Tor-King

I am just reassembling my engine and have a quick question concerning ring placement.  Is the ring that is "chamfered" on both edges the top ring or second ring?  I remember hearing somewhere here that the Haynes manual was incorrect in their diagram?
Thanks!
Dean

1993 Yamaha FJ1200
1988 Yamaha FJ1200
1986 Yamaha FJ1200
1984 Honda Nighthawk S 750
1972 Yamaha XS-2
1972 Honda CT70
1974 Honda CT70
1992 Yamaha DT50 MX
2012 Honda CBR250R
2008 Honda CBR125R

racerrad8

Dean,

The photo is difficult to tell, but the ring on the left appears to be the top ring. It should be a "chrome" face ring.

The second ring is just black.

Randy - RPM
Randy - RPM

Tor-King

Quote from: racerrad8 on January 05, 2018, 07:25:20 PM
Dean,

The photo is difficult to tell, but the ring on the left appears to be the top ring. It should be a "chrome" face ring.

The second ring is just black.

Randy - RPM

Hi Randy.  These rings are OEM.  The ring on the left is black on both sides with no "printing" and the edge is chamfered...

Dean
1993 Yamaha FJ1200
1988 Yamaha FJ1200
1986 Yamaha FJ1200
1984 Honda Nighthawk S 750
1972 Yamaha XS-2
1972 Honda CT70
1974 Honda CT70
1992 Yamaha DT50 MX
2012 Honda CBR250R
2008 Honda CBR125R

jyrki

Hi, clymer has a misstake? Should bevel of rings be faced up or down? I have been wondering oil  consumption after ring change..

oldktmdude

Quote from: jyrki on February 18, 2018, 01:05:28 AM
Hi, clymer has a misstake? Should bevel of rings be faced up or down? I have been wondering oil  consumption after ring change..
The chamfer (bevel) faces up towards the top of the piston. There is also a difference between the top ring and the second ring.
1985 FJ1100 x2 (1 sold)
2009 TDM 900
1980 Kawasaki Z1R Mk11 (sold and still regretting it)
1979 Kawasaki Z650 (sold)
1985 Suzuki GSXR 400 x2 (next project)
2001 KTM 520 exc (sold)
2004 GasGas Ec300
1981 Honda CB 900 F (sold)
1989 Kawasaki GPX 600 Adventure