Question about Ryobi Ry08570 Backpack Blower Engine 300749003 640570016

1 Answer

I get shocked at the hand grip the longer engine runs & as rpms increase, also get shocked when shutting blower off. Thanks

Posted by on

    TIM FARRIS Apr 20, 2015

    at one time i took the trigger handle apart to inspect the wiring for any bare spots, none found. I went ahead & tapped-up the wires (seperately) to add exter insulation. Still get a slight jolt with my hand anywhere near the wires that run to the trigger or off switch. I have not checked engine side to see what wires go to. Still looking for any help. Thanks.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,957 Answers

I believe that you are experiencing static electricity build up. As air passes through the blower, it creates a static charge. These normally bleed off over time.

When the air is dry, the electrons can hang around on your body for a long time, charging you up to thousands of volts. That can last until you touch something that can conduct them away, like a doorknob or your significant other.

You are not the first to experience this phenomenon.

Posted on Apr 20, 2015

    TIM FARRIS Apr 20, 2015

    This reply gave me something to think about. As i read your answer i understand it to be that static electricity will build up in me as i'm using the blower & will discharge as soon as i tough something, this does not seem to be the case in this instance as i continually get shocked while using tha blower & when trying to shut the blower off. If static electricity is in fact my problem any ideas on how to prevent static build-up & the continuing shock that i receive. Thanks

  • ka4iup
    ka4iup Apr 21, 2015

    Tim, You are basically insulated from be blower through your clothes and the harness of the unit itself. When the static charge increases to a suitable size, you will get an arc. You may want to try using a set of cotton gloves inside leather gloves. The cotton will absorb the sweat from your hands and the leather gloves to provide additional insulation. Operating the blower in more humid environments will reduce the static buildup.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Generac over-speed fault

check your frequency of the ac, if this is high, then adjust the rpms.
If that is fine and it is shutting down, check overspeed adjustment on control board if it has it.

Jul 16, 2017 | Generac Electrical Supplies

1 Answer

No Spark

I assume that you mean it runs after shutting off the ignition system. This is sometimes caused by carbon buildup on the piston tops. The carbon is hot enough to ignite the fuel and keep the engine running.

To clear the carbon, try driving in a lower gear to get the engine to blast off the carbon by increasing the rpms. Carbon buildup is caused by short drives, slow driving.

Jun 06, 2012 | Cars & Trucks

1 Answer

Kohler courage 19 starts and runs for awhile then shuts down

see what the voltage is when off and see if it increases running once its running the cltch and the carb solenoid is the only things that should draw it down

May 12, 2012 | Garden

1 Answer

Will not operate with choke full open

It sounds more like the high speed jet needs to be opened. No engine will run with the choke on. Open it up, find the little screw labeled high or fast, you have 2, one low or slow, If opening it up doesn't work, try closing it, turn it a very little bit at a time to see what it does. Hope this helps.

May 12, 2010 | Garden

1 Answer

Husband put unleaded gas with the oil added due to a 2 cycle engine, now it won't run

not clear on the problem?
I think you mean he has to add 2 stroke oil to the gas then fill up the blower then start it but it won't start? If the mixture is wrong it wont run well if at all.
Check the spark plug has a spark (unscrew it rest it against metal body with HT lead attached and try to start it, keep clear of the lead tho don't hold it in place!! it can be shocking. Check the unit isn't flooded (very wet spark plug).
try starting it with no choke, try several times then gradually increase choke, is it try to run yet?

Jan 15, 2010 | Poulan Featherlite Gas Blower, with Low...

2 Answers

2000 Suzuki esteem wagon, rpms race when car is rolling

check the throttle position sensor. that should be whats wrong.

Jul 22, 2009 | 2000 Suzuki Esteem

1 Answer

Car shuts off

most likely an intake gasket.. with engine running spray brake or carb cleaner along intake and the head if rpms increase replace the intake gasket

Apr 01, 2009 | 2001 Hyundai Elantra

2 Answers

Blower wont run at full throttle

Start with the spark plug it is the easiest.

But sounds like the carbourator is dirty, Probably fouled with old gas varnish. When it is idling give it a little throttle, flip the choke on and then full throttle. If it goes full throttle and doesn't conk out, it is a fuel issue.

Good Luck

Dec 07, 2008 | Troy Bilt Backpack Blower, 25cc, 160 Mph,...

1 Answer

My drayer is noisy

hi thanks for the question the blower is more than likely the problem what happens is that the motor runs at 1750 rpm and the blower is worn so that the blower cant keep up with the rpms of the motor usually when this happens it takes longer to dry the clothes thanks

Sep 22, 2008 | Maytag Dryers

Not finding what you are looking for?
Ryobi Ry08570 Backpack Blower Engine 300749003 640570016 Logo

Related Topics:

174 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ryobi Garden Experts

Nick Olsen

Level 2 Expert

183 Answers


Level 2 Expert

40 Answers

Roland W VanLue
Roland W VanLue

Level 3 Expert

486 Answers

Are you a Ryobi Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides