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Old 05-06-2012, 08:35 AM   #31
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


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Originally Posted by moore500 View Post
If I hold in the primer it will continue to run.
Sure sounds like you have a broken diaphragm on your primer bulb.

http://www.ereplacementparts.com/art...imer_Bulb.html

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Old 05-06-2012, 06:51 PM   #32
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


I will try a new primer bulb early this week, the parts dealership was closed today. One of the other issues with this mower is the gas tank leaks at the seam. I have a new tank on order. Could this be part of the problem? I have heard where people have had similar issues if they had a cracked gas cap on other mowers. Not sure if this needs to be a seeled system or not. Thanks for all of the help.
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Old 05-06-2012, 06:57 PM   #33
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


one more question, how easy is it to replace the bulb? It looks like you destroy the old one getting it out and put the new one in using a socket to push the ring in?
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Old 05-07-2012, 04:33 AM   #34
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


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Originally Posted by moore500 View Post
one more question, how easy is it to replace the bulb? It looks like you destroy the old one getting it out and put the new one in using a socket to push the ring in?
Pretty much.
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Old 05-07-2012, 08:53 PM   #35
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


Okay, partial success. Getting the bulb off was more difficult than I thought. It did have a broken oring and I suspect a pinhole in it. After replacing it and putting everything back together it took a while of priming but the mower fired up and ran . My issue now is it is surging, I must have done something wrong in the reassembly. Any suggestions for this? I am just excited it is running on it's own for now. I will try to fix the surging tomorrow. Any help would be appreciated. Thanks again for the help so far.

Last edited by moore500; 05-07-2012 at 08:56 PM.
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Old 05-07-2012, 09:07 PM   #36
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


Surging means air in system,the bulb isn't seated properly and it's sucking air.
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Old 05-07-2012, 09:16 PM   #37
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


UGHH .......any chance it could be a govenor adjustment....please.....I noticed the arm that the carb linkages are attached to is not totally vertical, when I hold it there the engine seems to run fine. If I didn't seat the bulb proberly my guess is I need to get a new kit and try again? I used a socket and tapped the retaining ring into place, not sure what else I could do better.
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Old 05-07-2012, 09:23 PM   #38
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


I'm not sure about this ,anyone?
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Old 05-08-2012, 02:01 PM   #39
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


I had a similar problem with my older Ariens lawnmower (6hp Tecumseh) a couple weeks ago. I had to prime the bulb a dozen times for it to even start. Once started it would run for a few seconds and then die. Eventually, after doing this process a few times it would stay started but would surge a lot while mowing. Here's what I did to get it working:
  • Changed the oil
  • Drained and rinsed out the gas tank (debris at the bottom of the tank)
  • Removed the carburetor and cleaned thoroughly with carb cleaner
  • Replaced the float bowl assembly/Primer bulb (bought off Ebay for $15)
  • Replaced gaskets
  • Replaced the gas line/clamps and installed a fuel filter
  • Replaced the air filter
  • Replaced the spark plug
After about $40 and a couple hours of work it now it starts within 2 pulls and runs great without any surges. I'm guessing that ultimately the fix was rinsing out the gas tank, cleaning the carb and replacing the float bowl assembly. I also gave the mower a thorough cleaning with a brush, there was a bunch of caked dirt on the deck and housing.
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Old 05-09-2012, 02:32 PM   #40
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


Don't adjust the governor linkage unless it has been changed. It can wreck the engine if it runs overspeed too long.
You can adjust the carburetor screws (if it has any) to even out the idle (assuming you've fixed the primer bulb issue and inside of carb is clean and float is properly adjusted).
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Old 07-14-2012, 06:43 PM   #41
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Toro Recycler mower w/ Tecumseh 6.5 engine - starts and immediately dies


I was going through all the same motions - new gas, spark plug (gap .030 per Tecumseh, .035 elsewhere but didn't make a difference so I left it at .030), air filter, wire the jet holes, and *still* it was missing. i took everything apart to spray out the carb and decided to make sure there were no obstructions in the gas tank. I filled with water and the outlet tube was very slow. I rinsed and didn't see anything wash out but after cleaning had full flow. My assumption is that the old gas "varnished" on the screen and restricted gas to the carb. I don't know if it was that or cleaning out the carb (didn't look dirty) but it's running without a miss now, after warming up 1-2 min.

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