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Backfires at higher speed - Craftsman YT 4000 42" Briggs Stratton 24 hp Gas Powered Riding Lawn Tract

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Why does my 318 lawn mower back fires


Charlene: According to https://www.briggsandstratton.com/us/en/support/faqs/engine-backfire-afterfire " What causes a small engine backfire & how do I fix it? Backfire typically occurs when the engine is decelerated rapidly.

Common Causes of Backfire:

  • Lowering engine speed too fast
  • Gasoline, which contains higher blends of alcohol
  • Carburetor adjustment set too lean
  • Muffler construction can induce backfire
  • Higher than normal engine temperatures
  • Some carburetors can induce backfire due to the sensitivity of internal transitional passages
    (This condition cannot be corrected).

Possible Fixes for Backfiring:

  • Lower engine speed slowly
  • Follow small engine fuel recommendations and/or switch to brands with low or no alcohol
  • Adjust carburetor for optimum performance
  • Inquire with equipment manufacturer about increasing air volume to decrease engine temperature"
Charlene: I hope that helps! :)
Charlen

May 28, 2015 | John Deere Garden

1 Answer

Backfires while driving higher speeds


time for tune up and have your catylitic converter checked out

Nov 09, 2013 | Ford Aerostar Cars & Trucks

1 Answer

Acceleration promlems


Check for fuel supply problems as it sounds that at sustained high speed the fuel supply is not good enough. Possible pump dosen't have enough capacity

Feb 01, 2013 | Cars & Trucks

1 Answer

01 ford ranger backfires at higher rpm don't no


i was told that some rangers have a govner or sensor that won't allow you to go over 3,ooo rmp at a idle,it will make it run rough and backfire,it' to keep you from blowing up your motor

Apr 29, 2012 | 2001 Ford Ranger Regular Cab

1 Answer

My steed is slow to pick up speed and when i am on the 4th or 5th gear, it has no power and i can hear some chain rattling which is not present on 1st to 3rd gear. also the exhaust backfires a little when...


cud be camchain wearing out but maybe the carb jets have issue making engine slug along at higher speed--purchase a haynes or clymer repair book online--library has cycle manuals sec629

Aug 21, 2011 | 1997 Honda Steed

1 Answer

Idles really high when clutch is engaged and backfires right after turning off


Check the carburetor mounting nuts and exhaust header connections for tightness. Any spark plug with a large amount of deposits on the internal insulator can cause pre-ignition. Put the transmission in neutral with the engine running, adjust the idle speed screw, which sits higher on the slide housing than the idle mix screw, for proper idle speed. If no idle speed screw exists, turn the throttle cable adjustment on top of the slide cover inward until the speed is correct.

Feb 02, 2010 | Honda XR 200 Motorcycles

1 Answer

Galant 95 backfires and shuts down at higher rpms


check ur plug wires they might be mismatched ...joe

Aug 29, 2009 | 1995 Mitsubishi Galant

2 Answers

1996 Suzuki Savage 650 backfires on cutoff


I had the same prob with my 97, It was not the head gasket but the O-ring on top of the head. Replaced the O-ring and has been running good for a year now with no backfire. Hope this helps.

Aug 23, 2009 | 1996 Suzuki LS 650 Savage

3 Answers

Hesitation in my Engine ~ Damsil in Distress!


sounds like a choke sticking or carburetor needing attention..(adjusting or rebuilding) hard to say more without hearing it my own self.....hit me up if i can help more milespeed@gmail.com

Oct 21, 2008 | 1965 Ford Mustang

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