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Engine Running Problem


lbi2000's Avatar
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01-03-03, 05:39 PM   #1  
lbi2000
MTD w/Tecumseh 8HP 4-cycle - backfiring, stalling, must run on choke when loaded

Hello everyone. Live in upstate NY and we are getting pounded with snow. Running my blower tonight ( 7" of snow ) it died twice, backfires quite a bit and runs choppy unless i run on choke setting. Might be smoking some, not sure.

It is a 4-cycle Tecumseh ... on an MTD 24" blower. I pulled the plug out to look at it and it was very dry.

Does anyone have experience to let me know what category of problem i have on my hands ?

I appreciate any advice. Thank you for your time.

 
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01-03-03, 08:49 PM   #2  
Joe_F
I'm betting you have a partial fuel restriction that is causing it to run lean.

My guess would be that you have clogged passages in the carbuetor..from either too much stabilizer in there or leaving rotten fuel in between seasons.

Try removing the carburetor bowl and cleaning out the bolt and the passages. Reassemble and give it a whirl.

The passages must be SPOTLESS for it to run well .

 
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01-03-03, 09:30 PM   #3  
Hello lbi2000!

I agree with Joe...you are describing the symptoms of a lean-running engine. It is starved for fuel for one reason or another. Most likely the carb needs cleaning. The fuel tank cap vent could also be stopped up, fuel line pinched, fuel filter clogged, etc...

Remove the carb bowl and clean it out and clean up the bowl screw. If it has a needle going up into the bowl screw, try backing it out 1/2 turn or so.

Let us know how it goes!


"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

 
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01-03-03, 11:03 PM   #4  
lbi2000
Thanks !

You guys are great for responding so quickly. I really appreciate it.

Tom

New Paltz, NY

 
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01-05-03, 02:40 AM   #5  
lbi2000
Fixed

Thanks to all you folks for responding so quickly. This is truely one of the top bookmarks. Nice job on this web site.

The problem was fixed by simply turning the carb screw a couple times clockwise which seems to have given the engine more fuel.

 
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01-05-03, 11:17 PM   #6  
Great! That'll do it. I would suggest at least removing the bowl and cleaning up what you can though. Usually if a carb has to be adjusted much from the proper settings in order for the engine to run well, it's an indication that something may be partially clogging up inside.


"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

 
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