Author Topic: Poulan micro Super xxv Deluxe  (Read 1177 times)

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Offline Eccentric

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Re: Poulan micro Super xxv Deluxe
« Reply #10 on: October 01, 2015, 04:42:32 am »
Will check psi next time out. Do you want me to pull muffler for a look see too?

Yes please.

Working on pics.

Piston looks great with witness marks very bold on piston looking from muffler on exhaust side.  The ring is real shiney almost like chrome looking. I thought that was odd. 

I pulled and got 120psi is this in the norm range on these? I never paid attention and dont think I ever checked before.



That's about average for these.  Most Micro series saws (including this one) have a chromed piston and unplated bore.  Just like a 3400 or 3800, they don't blow as much compression.  A fresh, just broken in saw will have 130-135psi (maybe).
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

 

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