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Old 11-30-2011, 09:40 PM
MXHalofan MXHalofan is offline
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Join Date: Jan 2008
Location: Kansas City MO
Posts: 84
Echo PB 620 should I richen up after removing the screen and some of the baffle?

Sorry if this has been discussed recently, I searched and read for quite a while and decided to post.

I removed the muffler off my champion of leafs, cleaned the port, then removed the screen from the muffler and ported the muffler some. You folks think I'll need to richen up the high speed adjuster?

Also where should my compression be, checked in at 100 psi, seemed low but I'm used to working on chainsaws.

Figuring I can probably tell if I'm lean by ear, but thought I'd ask around. The RPM range is a lot lower than my chainsaws I think. Anyone know the RPM it should be running at wide open?

Sure sound better and throttle response was better for the brief test tonight. Can't wait to open'er up tomo and beat on some leafs.
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Old 12-03-2011, 10:52 AM
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piston slapper piston slapper is offline
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Join Date: Mar 2010
Location: Tampa Fl
Posts: 4,210
100 psi is pretty low. You may want to put a smaller diameter tube on your discharge to increase blower velocity.
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Old 12-03-2011, 05:43 PM
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ed2hess ed2hess is offline
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Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 12,479
Adjust it by ear. Regardless of what you run that unit is going to wear out the crank bearing so keep an eye on those. And obviously when you replace them replace the needle bearing on the piston end.
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