Question about Troy Bilt 5.5hp Self Propelled Mower
Engine starts okay but seems to want to surge up and down with no constant idle.
The nozzle is clogged.if this is a briggs engine it has a plastic carbuator on it.to clean you need to remove the gas tank and carbuator,that the screws out that hold the carb. to gas tank.inside you will find a screen covering the nozzle,carefully using a very small screw driver pop the nozzle from the carbuator.there is an o-ring holding it in.don't lose it.gently blow air both directions through the carb.replace it and start the mower up,surge should be gone now.hope this could help,if not let me know and we can try something else........................
Posted on Jun 03, 2009
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Posted on Jan 02, 2017
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Mar 18, 2016 | Suzuki Cars & Trucks
Engine stalls cold or RPM
fluctuates at idle up and down or dies near idle.
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control. If the above cleaning doesn't cure your issues you need to have the computer controlled automatic idle speed control system diagnosed and repaired by a dealer or electronic engine control repair shop.
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