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Need to know the diagram for the routing of the gas lines on a ryobi 700r. I replaced the primer balb and the unit does not run, not sure if I have all the lines on correctly. I have switched the lines to the primer and it did not seem to make any difference.

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6ya6ya
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Posted on Jan 02, 2017

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worldvet
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SOURCE: Ryobi Grass Scorpion Petrol lines from tank to primer to carby where to where

Thanks to doityourself.com.

The line off the top of the primer bulb goes to the top of the carburetor.
The line on the bottom of the primer bulb goes to the fitting on the center of the fuel tank and the line off the side of the fuel tank goes to the bottom of the carburetor.


Regards,
Worldvet

Posted on Oct 28, 2008

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  • 97 Answers

SOURCE: Ryobi Cultivator 410r

The linefrom the tank with the filter goes to the mixture inlet on carb. The fuel return goes to the suction side of bulb. The bulb outlet line goes to the tank. Hopes this helps

Posted on Mar 20, 2009

  • 297 Answers

SOURCE: I REPLACE THE FUEL LINES,NOW IT ACTS LIKE IT WANT TO START,BUT D'

http://outdoordistributors.com/pdf/Ryobi/RYOBI-700r-serials-304051232-thru-.pdf

Have a look at this drawing.

Posted on Apr 18, 2009

  • 8 Answers

SOURCE: ryobi 700r gas trimmer, replace old fuel lines

Line from tank with the filter on it is the supply line and goes to the carb inlet fitting. This is typically on the "bottom" of the carb (with the tank being up) and will usually have a fitting with barbs or a bulge on it to ensure a tight fit. The other fitting on the carb is the return line and is usually a straight tube fitting with no barbs. That line goes the suction side of the primer bulb. The third line goes from the outlet of the primer bulb to the return barb fitting in the bottom of the tank. Fittings have to be removed from tank to properly install the new hoses on them. Remove retainer ring on outide of tank and push fittings into tank, then shake out of the fill opening. More details on replacing hoses are listed in another post about Repairing Ryobi trimmer.

To leemineres, if hoses are on right and unit still stalls after starting initially you probably need to disassemble carb and clean out using spray carb cleaner. May be sticky needle valve, or partially plugged port or jet.Could also be hole in diaphragm. Gasket and diaphragm kit would be good to add when you take apart, even if diaphragm does not have a hole.

Posted on May 20, 2009

  • 8 Answers

SOURCE: replaced new gas line, new primer bulb, new

Line from tank with the filter on it is the supply line and goes to the carb inlet fitting. This is typically on the "bottom" of the carb (with the tank being up) and will usually have a fitting with barbs or a bulge on it to ensure a tight fit. The other fitting on the carb is the return line and is usually a straight tube fitting with no barbs. That line goes the suction side of the primer bulb. The third line goes from the outlet of the primer bulb to the return barb fitting in the bottom of the tank. Fittings have to be removed from tank to properly install the new hoses on them. Remove retainer ring on outide of tank and push fittings into tank, then shake out of the fill opening. More details on replacing hoses are listed in another post about Repairing Ryobi trimmer.

Have you checked the spark plug?

Posted on May 20, 2009

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The primer bulb is broken on my 700r 2-Cycle Gas Trimmer and I would like to replace it


not difficult at all to do , first obtain Ryobi primer /fuel line kit from your local distributor , then remove air cleaner cover (pops off with fingers) then drain all gas from fuel tank back into storage tank , locate the two Phillips head screws next to primer bulb and remove them , careful not to drop them !! remove old bulb from ring and replace with new bulb from pkg. then using a clean cloth , carefully wipe out sealing grove where bulb seats down (I guarantee its dirty) when all clean , place bulb down in grove and make sure it seats well then secure with ring and replace screws (don't over tighten) you might as well replace the fuel lines as they come in kit , instructions are on pkg , I do suggest doing one at a time to not forget how they go , and do use the new fuel filter that's inside pkg too

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5021387817_dfec1b5c67.jpg

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http://outdoordistributors.com/pdf/Ryobi/RYOBI-700r-serials-304051232-thru-.pdf


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Ryobi 700r gas trimmer, replace old fuel lines


Line from tank with the filter on it is the supply line and goes to the carb inlet fitting. This is typically on the "bottom" of the carb (with the tank being up) and will usually have a fitting with barbs or a bulge on it to ensure a tight fit. The other fitting on the carb is the return line and is usually a straight tube fitting with no barbs. That line goes the suction side of the primer bulb. The third line goes from the outlet of the primer bulb to the return barb fitting in the bottom of the tank. Fittings have to be removed from tank to properly install the new hoses on them. Remove retainer ring on outide of tank and push fittings into tank, then shake out of the fill opening. More details on replacing hoses are listed in another post about Repairing Ryobi trimmer.

To leemineres, if hoses are on right and unit still stalls after starting initially you probably need to disassemble carb and clean out using spray carb cleaner. May be sticky needle valve, or partially plugged port or jet.Could also be hole in diaphragm. Gasket and diaphragm kit would be good to add when you take apart, even if diaphragm does not have a hole.

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