Still confused about rings

[Johnny K]

I have asked this question before, but am still confused. I have an 82' 850GZ. It is stock pistons. I ordered a set of (25-3) piston ring set and because it said at the end (STD) I assumed that it meant standard. I saw (24-1) that the piston listed there was (STD) meaning standard. However when I ordered the piston rings (STD) and put the top ring in the barrell, it overlapped meaning that it was oversized. Just a little frustrated about the fiches saying this and "assuming" that it was standard. I ordered (25-1) set of rings the other day. I would appreciate it if I could get an explanation of this whole (STD) business. Thanks guys.

24-1 PISTON (STD)12111-45110 4 $38.67
24-2 PISTON SET12103-45830-050 (replaces 12111-45110-050) 4 $65.19 24-3 PISTON (OS:1.0)12111-45110-100 4 $34.19

25-1 RING SET, PISTO12140-45121 (replaces 12140-45120) $21.40
25-3 PISTON RING SET (STD)12140-49001 $25.80

[Nessism]

According to the on-line catalog at both Alpha Sport and Motogrid, you need P/N 12140-45121.

[Johnny K]

Thanks Nessism. Yeah, I kinda figured that out now after spending that money for the other set of rings and putting them on and having them overlapped in the cylinder walls.

[psyguy]

Thanks Nessism. Yeah, I kinda figured that out now after spending that money for the other set of rings and putting them on and having them overlapped in the cylinder walls.

huh, sorry to hear your troubles but as far as i remember both nessism and i told you you needed 25-1, no?

[SPARKSS]

Group 24 is pistons......24-1 is standard bore......24-2 is .5mm OS....24-3 is 1.0mm OS
Group 25 are rings ......same deal

That's how I read the parts list.

[Johnny K]

Yeah I know Psyguy. I guess when I ordered, I was in the midst of looking at other stuff/searching and then when I ordered, I had just thought the (STD) was for my pistons. My fault. In the near future when I order, I will pay more attention. Thanks.

[psyguy]

Yeah I know Psyguy. I guess when I ordered, I was in the midst of looking at other stuff/searching and then when I ordered, I had just thought the (STD) was for my pistons. My fault. In the near future when I order, I will pay more attention. Thanks.

yeah, i know, it took me a while to get my head around those parts-fiche
btw, there is also sometimes a "set" of pistons AND rings sold together (oversize only i think), so that adds to the confusion too
will they take your parts back or have you opened all the packets???

[Johnny K]

I opened all the packets and put them on and oiled them around the pistons. So I don't think they will take them back. It's okay. Thanks.