OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Trimmers and Brushcutters Ryobi Trimmers & Brushcutters Ryobi 725r line trimmer

Hi, I have a Ryobi 725r line trimmer aprox 8 years old. I have trouble starting this machine.I have had a new kit in the carby and it doesn't seem to be sucking fuel. Any suggestions

Evan Johannesen,

When you say that you put a new kit in the carby does that mean you replaced the fuel filter screen as well?

Hi, There must be something drasticly wrong with this carby. I had this line trimmer serviced by someone who i thought was a reputable repair centre. I pulled the side off the carby and found no filter screen. Instead there was a diaphram with a clear plastic centre in there (no gauze filter). I have repaired many small engines in my time something seems quite wrong. I have never had anything to do with carbys of this size. Perhaps i have met a dodgy repair man. Any help??

Evan,

Can you let me know what carby is on the machine it could be either a Zama or Walbro. :Wavey:

Also need the numbers that are stamped in the body of the carby.

Hi, No it's definately a Zama. I have been told the part no. is ciu-p10a

Evan,

I have uploaded Technical guide for the Zama carbies into the parts List and Manuals area for Brushcutters.

Hi, How do i get to the parts list and manuals section

Evan,

That area is available to members that make a donation to the board.

hey evan you say that it was missing a screen and now it dont work after replacing the screen them zama carbs can be very very tricky and normally it takes a special tool to adjust those carbs since mtd owns ryobi well i say if its 8 years old ryobi was on its own back then but mtd bought them out and i dont know you may be needing to replace the carb itself i can diffently tell that they dont last forever them carbys dont only a few years normally expecally if they get trash inside them it starts working on the inner parts of the carb besides bruce i m,yself am in the outdoor power business been in it since 1988 but im here in the usa and you all are over in australia i think i spelled it correctly i hope but any way it may be time you get a updated carb and give that a try i not sure if bruce has got mtd parts or not but if not im sure you can find it
i have worked on them 725R models tons of them and they can get tricky and make sure you changed the fuel filter and also make sure the fuel lines are in the correct spots the primer jet should be where you have the line with the fuel filter attached goes in at the other fuel line is where the return is into the tank i have seen numerous ones that were backwards in which was the problem on the unit and also the adjustment on the needle inside the carb make sure that needle is freely moving if it is not freely moving then bingo there is why it isnt getting fuel

bruce i need to find out about these echo kioritz parts i have most of these are obselete and i notice you are a echo dealer if im not mistaking well here is the scoop couple years back this one company here in my area was a echo homelite and so on dealer and when they took on white outdoor line they didnt do so well and had to go bankrupt and then they left all these parts in the warehouse where they were renting well the owner of the building contacted me and asked if i take a look at what was there i go look and wow talking about parts there they were on the shelfs and all well i have tons of them and most of them are no longer available i dont know maybe you can have use of these over in austraila i will be posting these on my store on line and then i will give you the url of the store so you can go view them numbers and see if you know of anyone who may require them most of them i dont know the prices on but i have someone in new york who is working on that for me as we speak they actually are a echo dealer and ordered from me being im in north carolina cause there distribitor didnt have the part and here i have 5 in stock so that starter spring hit the search engines with the part number and all thats how they found it here is another story i had a part that i didnt know what it was for so i placed that part on store i get a call from a guy somewhere out west and they said that part is the part they been looking for so long it was a part to a old old old remington chainsaw and i didnt know it lol so who knows maybe i can finally clean my parts area out so i can get more room for other items if its ok for me to give you my url let me know and i will i get permission from you first thats how i am that is why i didnt give the part numbers out first i waited to get the ok to do so for example i have these echo #s 363 017 0031 0 , 156 104 1233 0 , 900 242 0402 5 , 351 111 1103 0 , 900 220 0501 6 , 436 205 0283 2 , thats just a few of thousand numbers almost so i will be putting these on store as soon as i get a price l;ist from the guy in ny and what these parts go to lol