substitue for g clips?

Those type of clips are good. Make sure you get the correct metric size that fits the groove.

Probably 10mm x 1mm thick depending on your piston

You will need probably need circlip pliers when using them.

Question! I did a full tear down to diagnose a grinding noise and loss of power, I yanked the g clips in the piston. I know that things like this tend to be one use the get a new one for safety sake. The problem is I can't find g clips for my 80cc piston. I found a piston set but I don't need the whole thing I only need the clips. All the G clips I can find are labeled as being for 48 or 66 cc so is a G clip a G clip? Should I spend more time looking for the right clips? Should I just use the old ones until I can get new ones? Or can I get the 66cc clips and be safe?

66cc/80cc are the same thing. There is no such thing as an 80cc - it's a gimmick or marketing ploy.

Pirates does sell a g-clip labeled for a 80cc:
http://www.piratecycles1.com/gclip.html

Good Luck,

Chris
AKA: BigBlue

Thank you Chris, I'm a n00b and just needed to hear it from some one else. I find the easiest way to keep from making mistakes is simply to ask.