HOW TO REPLACE DUAL LINE ON GRASS TRIMMER

clean carburator

Hi and wel;come to FixYa, I am Kelly.
The part you need is item 9 on most parts lists:

Your problem is caused by either drive shaft failure or.. clutch failure. Most of the time the drive shaft fails before the clutch.

The manual is here:
http://www.mymowerparts.com/pdf/Ryobi_String_Trimmers_Blowers_Tillers/700r.pdf

Shaft is PN 682064 or 753-04280

Sears parts direct has the shaft as item 10 this link:
http://www.searspartsdirect.com/partsdirect/part-model/Ryobi-Parts/Grass-trimmer-weed-wacker-Parts/Model-700R/0909/1503820/10060718/00002?blt=06&prst=0&shdMod=700R

Detailed view:
http://www.searspartsdirect.com/partsdirect/part-number/Ryobi-Parts/Grass-trimmer-weed-wacker-Parts/753-04280/0071/247/Model-700R/0909/1503820?keySuffixId=NA&productTypeId=x&searchModelNumber=700R&subCompDesc=Boom%20and%20trimmer&brandDesc=RYOBI&modelDesc=TRIMMER&pathTaken=partSearch&blt=11

Lower price here:
http://www.mowpart.com/p661995/Flex,-Shaft-(Rpls-682064)/product_info.html

Average price ($32.50)

Thanks for choosing FixYa,
Kelly

The basics of the fuel line on these and many 2 cycle engines is this, one line from the tank goes to the primer bulb and the other from the tank is the return line from the carburetor. There should be another from the primer to the carb. The primer pushes fuel into the carb and any excess flows through the carb and back into the tank.

I hope this helps.

get new line cut end at an angle , lube with oil and twist it in, snag the line and pull it out the filler hole and insert filter on the end, connect and enjoy.

unit with primer bulb,,,,,line from gas tank with filter, goes to bottom of carb, from top of tank to suction side of primer bulb, from output of primer to tank return

I am not really sure how many lines you replaced. But the fuel line layout on most types of trimmers, weed wackers and lawn mowers are pretty straight forward. There is usually a line inside the gas tank for connecting the fuel strainer\filter. Then a line from the bottom of the tank to the carburetor. This line may also have a fuel filter located on it. On more complicated equipment you may find a breather line that loops back to the carburetor.
Below are a couple of links that might be helpful. The first three are diagrams of a similar 31cc Snapper trimmer and links to other Snapper trimmers. The fourth is to the users manual for your trimmer.
Hope this helps.

http://www.partstree.com/parts/?lc=snapper&mn=311+31cc+Straight+Shaft+Trimmer+Series+1&dn=6600

http://www.partstree.com/parts/?lc=snapper&mn=310+31cc+Straight+Shaft+Trimmer+Series+0&dn=6597

http://www.partstree.com/parts/?lc=snapper&mh=19

http://dl.owneriq.net/a/a3fbde0d-dc76-4963-935f-821589699385.pdf

I'm in a similar situation with my GH1000, except that it was a part that comes with whole motor assembly. I could sell you the shaft assembly of my trimmer, or I'll buy your motor assembly. Yes?

To get the original parts:
http://www.ereplacementparts.com/ryobi-725r-41bd725a734-handheld-trimmer-parts-c-7931_15633_18592.html

I have a Ryobi 31cc 17inch cut with gas line problems and this answered my questions. Thank You
R Green

This product is driving me nuts - if someone can't help then its going into the bin