Author Topic: MS250 - piston / cylinder need replacing ?  (Read 499 times)

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Offline hessaacd

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Re: MS250 - piston / cylinder need replacing ?
« Reply #10 on: May 11, 2014, 07:17:09 pm »
Well, I put in the new piston and rings, it started normally, I ran for about 15 seconds, felt like it had good compression, then I turned it off for the night, planning to put on a bar and chain today. 

Now it's back down to 90 PSI.

Does this indicate I might need a whole new cylinder/piston assembly?

 

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