Question about Tecumseh Enduro Horizontal Engine 5 HP 2532in x 2 2532in Tapered Sha
Hi and welcome to FixYa, I am Kelly,
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First things first turn off the fuel selector if there is one.
See figure 10 on page 14. I think your going to have to remove the float bowl and the idle screw and use some carb cleaner in the idle screw hole. BEFORE you remove the idle screw turn it "clockwise: gently counting the number of turns until it just stops turning. (write it down as IDLE) DO NOT force it closed. Then remove the idle screw for cleaning. Also remove the main adjustment screw but loosening the nut ONLY that retains the float / fuel bowl. (do NOT turn the main fuel jet until after removal. Again count the number of turns it took for the jet to just stop turning. (Write that down as MAIN) Spray carb cleaner into the idle screw hole and into the threaded area where you removed the bowl nut / main fuel jet. What ever you do if your carb has any Welch plugs in it DO NOT remove them even if the manual tells you to do so.
One thing to check is that your carb mounting bolts are tight and that gaskets are in tact. The symptom your describing can be caused by a bad intake gasket also. It is ok to loosen the carb and slide it away from the head gently and inspect the gasket. DO NOT disconnect any linkages, just inspect the gasket.
After cleaning things up (jets) remove the fuel supply hose form the fuel inlet fitting and leave the float itself in the down position. Spray carb cleaner from the float needle are UP to the fuel inlet manifold. You are attempting to free any debris from the float needle seating area and flush it out through the fuel inlet. Usually you DO NOT have to remove the float and float needle to do this but there are exceptions when there is a large piece of debris in the float needle area. Usually if there is debris here the carb overflows. I do not think you have an overflow problem at this time.
Reconnect the main fuel line. Briefly turn ON the fuel selector and as fuel flows check that as you raise the float to level the fuel shuts off. Turn OFF the fuel selector. If you are not getting good fuel flow here inspect the fuel tank outlet port and fuel filter.
Reinstall the main fuel jet into the bowl nut until it is closed then turn it counter clockwise the number of turns you wrote down for MAIN. Reinstall the float / fuel bowl and main fuel jet but make sure the inner gasket that goes between the bowl and the bowl mounting nut is installed (2 ea usually one inside and one outside the bowl. Install the idle jet screw until it just closes and then turn it counter clockwise the number of turns you wrote down for IDLE.
If you have difficulty with mixture jet adjustments the pre-sets are on page 20 of the manual.
If you find that your going to have to completely tear down the carb and overhaul it the steps are in the same section just past the pre-sets.
Turn ON the fuel selector and attempt a start.
This usually fixes most Tecumseh carbs.
Let me know the outcome please. And if you need parts I can help you locate an on-line source but most lawn more repair shops will have overhaul kits for your engine. I will need your engine number to get you the right parts manual.
Thanks for choosing FixYa,
Posted on Mar 28, 2011
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Posted on Jan 02, 2017
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Dec 27, 2013 | Tecumseh Enduro Horizontal Engine 5 HP...
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