Question about Briggs & Stratton Intek Snow Horizontal Engine 7.5 Hp, 1in. X 2 27/64in. Shaft, Model# 12D412 0009 E1

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Backfires thrue carb

Float stuck in carb Repaired that. Now it contionosly backfires thrue the carb This is a snow blower. Mod20c114 type02069e1

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You may have an intake valve staying open or the spark timing may be off from a slipped flywheel and key. Can spray liguid wrench in the intake to coat valve stem . You would have to take off the flywheel hold down nut and pull starter engage ring to see if the groove in the flywheel matches the groove in the crankshaft. Ive had blowers, weed eaters, tillers and all kinds of small engines break a flywheel key for no apparent reason. Sometimes they are just a little loose and wear out or snap.

Posted on Dec 30, 2012

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Posted on Jan 02, 2017

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I have an MTD 611 snow blower thats getting too much gas and its leaking from the carb even when not running


If this is the carburetor: http://www.mtdparts.com/equipment/mtdparts/951-14026a

Check to make sure the float bowl on the bottom that has the nut on it, is tight. You can also remove that and make sure the float is not stuck or saturated with gasoline.

Jan 22, 2016 | Garden

1 Answer

What causes a backfire thru the muffler when I shut off the engine 10hp Toro snow blower


Eighter the neddle valve isn't sealing correctly witch is the fuel shut off for the float bowl or the choke isn't completely opening .
In eighter case your getting to much fuel the engine can't burn it all thus a back fire to RICH

Mar 04, 2015 | Garden

1 Answer

I have a toro 98 cc powerlite snow blower. did not drain fuel after storing for the summer. drained fuel, put new mixed fuel in and engine wouldn't start. replaced spark plug, cleaned carb and bottom


cleaning the carb was a good thing if done properly. fuel tarnishes over time and this tarnish destroys diaphragms in carbs and also plugs up the jets. If you used compressed air at a high velocity then you may have damaged the internal check valves in the carb. Also check your fuel filter and air filter

Oct 08, 2014 | Garden

1 Answer

S 140 snow blower


It sounds like the float is stuck, or at least the needle valve controlled by the float is stuck open, therefore not stopping the flow of gas into the carbureator. Time to rebuild the carb.

Apr 26, 2014 | Toro Garden

1 Answer

Snow thrower backfires and stalls


sounds like carb needs cleaning or plug changed
id do both

Jan 30, 2014 | Craftsman Arnold Mtd Snow Thrower Blower...

1 Answer

Back firing and missing


Carberator take the sedum ate bowl of a clean the jets and every thing else with carb and choke cleaner also check that the float isn't stuck

Jan 06, 2014 | Cars & Trucks

1 Answer

Float stuck on huayi carb


usually not the float. there is a needle attached to the float that slides up a small hole and against a rubber seat. the seat over time becomes sticky and sticks the needle up and in place blocking the main fuel entrance. you can pick up a rebuild kit from you local small engine shop. you will need the 5 digit model number located on a sticker by the wheel axle....

Jan 18, 2013 | Toro Power Clear 621 ZE 21 163cc Single...

1 Answer

Wont start , flooding black spewing all over snow ,backfires


Sounds like your machine is really rich.(getting way too much fuel). From what i get from you're posting I would think the needle is probably stuck and not seating properly. Lets try easy and cheap first. Remove spark plug, Try pulling the engine over or cranking if its electric start. There shouldn't be liquid coming out of spark plug hole. Take a screw driver by the shank and use the handle to strike the carb, if the needle is just stuck this may cure the problem. If not you may have to disassemble the carb. With the float out try shaking it, is there any gas inside the float? (you can hear it when you shake it). If so replace the float. Hope this helps.

Dec 13, 2010 | Garden

1 Answer

Wont start unless i pour gas in carb throat, MTB snow blower. float ok, gas is good to feed .MTB snow blower. I'm sure carb problem, what to do next?


depending if you have a ajustment on the bowl you will need to ajust to get the right mixture if this will not fix your problem then you will need your carb rebuilt

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