Question about Echo Gas Blower 135 MPH390 CFM Blower PB250
Jim, pull the muffler off and check for a blocked spark arrestor screen, or a partialy blocked exaust port. The screen is designed to catch carbon embers and gets plugged up. You can remove it, but cleaning it is a better choice. You can use solvent and scrub, or you can use a propane or mapp torch and incinerate the carbon, or you can just repalce it. On the exaust port look in after you take the muffler off and make sure it is open. You should be able to see the piston go up and down. The port is shaped as a rectangle. You will need to us a scraper ( a small screwdricer is fine), be sure to put the piston up, this will keep the carbon you scrap off from entering the cylinder. Be carfull not to scratch the piston whil cleaning. Then use carb cleaned to was the debris out BERFOE you move the piston to check your cleaining job.
The starter rope should be made of a braided nylon and not the cotton (cloths line) type. It will usually have a red or blue woven in it. A number 4 rope will work fine for your blower.
Hope this helps.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac
Posted on Nov 04, 2010
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Posted on Jan 02, 2017
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