HELP PlEASE ( compression )

[Trenton Tigney]

Okay so I have a banshee with an athena 392 kit on it. My compression on the right cylinder is 120psi an on my left cylinder is 80 psi I'm guessing it has a leak in the left reeds somewhere but what should the compression be on a athena 392 kit .

[Surfrjag]

the reeds don't have anything to do with compression. you should have at least 125 on each side I would expect. time to inspect and find out why its low. headgasket or stuck rings maybe? another question is why did it loose compression? was it ran lean and hot because of an air leak?

[Trenton Tigney]

I'm not exactly for sure I thought maybe the reeds cause there new an they couldn't get them to seal at first. I got this from another guy.

[Zillaguy]

Pull the cylinders, chances are you'll find pistons that are scuffed beyond belief, and the rings stuck or welded to the pistons.... More than likely it was ran lean.... It does not take long to destroy a 2 cycle engine from being ran lean... Less than an hour usually.....

[Trenton Tigney]

Well the pistons on top are not scratched , I'm about to pull the jugs off . Any suggestions on tools to pull the exhaust springs off

[Starwriter]

Vicegrips or a spring puller hook tool.

[fappy'97]

Of course they won't be scratched on the top

[n2otoofast4u]

Brilliant

[Trenton Tigney]

Thanks for the help! Ill see the condition of the piston tomorrow!

[Alba Racing]

Stock compression is 120ish.  Id think you would have more.

[Finch]

Stock compression is 120ish.  Id think you would have more.

not true here at 5000 feet they come out right about 100.