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I have a Ryobi BP42 blower. I ran it on fuel with no oil mix by mistake. It seized. I let it cool and added oil mix, but now it won’t start. Suggestions?

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Without more information, the best guess is that the piston is probably seized in the cylinder, this will not fix itself by adding oil now. It likely needs a new piston and/or rings and/or cylinder or shortblock assembly. You can google your model number for sources of repair parts. Depends what you find when you disassemble it, if you can get the piston out you may be lucky to get by with a new set of rings and honing the cylinder.
But it will be a batch of work for a $200 blower. May be worth it if you can do it yourself and the parts arent too much. Certainly a shop couldn't do it for less than the replacement price of the whole blower.

Posted on Oct 28, 2019

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Its smoked. no compression

Posted on Oct 28, 2019

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  • 196 Answers

Chuck it away and get a proper one

Posted on Nov 05, 2019

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  • Contributor
  • 6 Answers

Take the start plug out and put a screwdriver in the hole were the piston will be sized and hit it with a hammer and then pull the stat cord

Posted on Oct 29, 2019

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Posted on Jan 02, 2017

Anonymous

  • 59 Answers

SOURCE: New Ryobi EX26 Edger started twice and won't now.

turn the high mix screw just a little to the left it will have a letter H on one screw and L on the other

Posted on Jun 23, 2009

Bob B

  • 272 Answers

SOURCE: Ryobi RY08576 25.4cc was started without mixed fuel

If the engine is sticky ie harder to pull it might have to be pulled apart new piston and honing of cylinder. not difficult just a pain. If it doesn't seem any harder to pull, Drain all of the unmixed fuel. Put a few drops of 2cylinder oil in the spark plug hole and pull the starter a few times with the plug out of it. Put a few more drops in repeat. Replace the plug (new plug) Put in mixed fuel prime the system cross your fingers and it should start up for you.

Posted on May 12, 2009

Anonymous

  • 246 Answers

SOURCE: ran gasoline in 2 cycle engine and it will not

Hello:

Remove the Muffler and Look into the Exhaust Port.
If the Piston has Scratches or Gouges, then the Engine is Trashed and will have to be Replaced.
A New Unit is Usually Cheaper than Buying the Replacement Parts.
You can View a Breakdown of this Unit at the Following Site Addy.
http://www.smallenginepartswarehouse.com/parts.asp
Hope this Helps.

Good Luck

Respectfully

John

Posted on May 10, 2009

Anonymous

  • 110 Answers

SOURCE: i just picked up a used ryobi rgbv3100 mulcher

test for spark.
while spark plug is out - put finger over hole see how much compression there is.

If good spark - look for holes in fuel line.

Posted on Jul 06, 2009

domacjo85

  • 2 Answers

SOURCE: Engine Seized after running trimmer for 5 min w/ no mix

ryobi trimmer was "parked" for 4 years, now it has no spark. ????

Posted on Aug 15, 2010

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Greetings & salutations Charles Klink,

You need to correct your 2 cycle oil to fuel ratio...

The engine needs the appropriate oil mix to keep the engine from seizing...

It is REALLY ******* the engine not to
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Most Ryobi products made in the past 5 years use a 50:1 fuel mix. Check the fuel cap to see if it is listed there. The older Ryobi product used a 32: 1 fuel mix ratio and it was usually listed on the sticker that shows you how to work the choke. If in doubt, go with the 32:1 ratio. The only thing it will cause is premature fouling of the spark plug. Too little oil in the mix will cause premature engine wear.

50:1 is 2.6 ounces of 2 cycle mix to each gallon (U.S.) of gasoline.
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I recommend to use a 2 cycle mix that is specifically designed for lawn equipment and contains fuel stabilizer. The ones with stabilizer will usually be .5 ounces larger.

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If the engine is sticky ie harder to pull it might have to be pulled apart new piston and honing of cylinder. not difficult just a pain. If it doesn't seem any harder to pull, Drain all of the unmixed fuel. Put a few drops of 2cylinder oil in the spark plug hole and pull the starter a few times with the plug out of it. Put a few more drops in repeat. Replace the plug (new plug) Put in mixed fuel prime the system cross your fingers and it should start up for you.

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