Need diagram please
I just rebuilt my 725r. I don't have a diagram but I can explain it. There are two lines coming out of the fuel tank. The line closest to the rear is the fuel feed and has the in-tank filter (these are available for replacement). This line goes through the lower case hole of the air filter housing and attaches to the bottom of the carburetor. The line toward the front of the tank attaches to the longer/lower fitting the primer bulb and is the return. The line coming off the shorter/upper fitting of the primer bulb goes through the upper hole of the air filter housing and attaches to the top of the carburetor.
FYI also, the forward carburetor screw is the low idle adjustment & the rear, the high-speed mixture. The original oil mixture spec called for 32:1
I plumbed my lines as suggested and my trimmer now runs like a new one. Thank you. I would still be getting nowhere without your help...
Thanks for this post. My fuel lines disintegrated after 10 years of use and I could not tell what the original layout was. Your post confirmed my guessing and now she lives again!
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I put the new line thru the bottom of the gas tank, pulled it out thru the gas filler. I then put the filter on the line, and slowly pulled the line back out thru the botton until the filter nozzle was in the hole. I then put in a bent piece of metal on top of the filter and pushed the filter from the inside of the tank to pop it in place. Put this site in favorites because the ethanol will rot out the line in a few more years. At least drain as completly as you can before storage. A challange to work on this, it seems they planned on making it difficult to reach certain areas.
and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of line goes from the top fitting on primer bulb to top fitting on the carburator. Hope this helped and best wishes.
and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of line goes from the top fitting on primer bulb to top fitting on the carburator. Hope this helped and best wishes.
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