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 B&S Opposed will not start

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willis923
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B&S Opposed will not start Empty
PostSubject: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 11:50 am

Okay, so my Briggs opposed will not start it is a crank no start. I rebuilt the carb about a week ago. The engine ran about a year ago but it ran rough. Right now it will crank all day long but not show any sign of wanting to start. Any ideas as to what it might be?
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TokyoDrift99
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 11:56 am

Is it getting fuel? Pull the fuel line off the carb and see if any comes out when you crank the engine.
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matt-man
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 12:00 pm

@TokyoDrift99 wrote:
Is it getting fuel? Pull the fuel line off the carb and see if any comes out when you crank the engine.
Sure is getting fuel. I even poured about a cap full of fuel down the throat of the carb and it still won't do anything
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willis923
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 12:33 pm

grab some ether or carb cleaner, give it a snort. see if that fires it up. if not, pull your plugs and see if its getting spark. if there is spark, do a compression test.

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


B&S Opposed will not start Pbucket

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1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
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matt-man
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 12:35 pm

@willis923 wrote:
grab some ether or carb cleaner, give it a snort. see if that fires it up. if not, pull your plugs and see if its getting spark. if there is spark, do a compression test.
I'll test spark once I head back out to the garage. It ran a year ago and the only thing I did was rebuild the carb so how could spark or compression loss be involved here?
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willis923
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 12:37 pm

i dont know, but crazier things have happened. your flywheel could have rusted, keeping the magneto from firing

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


B&S Opposed will not start Pbucket

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1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
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TokyoDrift99
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 12:43 pm

I'm with willis, give it a shot of carb cleaner, if it doesn't go check for spark.
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matt-man
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 1:38 pm

Checked for spark and none at all. So I cleaned the surface of the magneto and stuck it all back together. Still has no spark so I think it's time for a new magneto
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Doc Sprocket
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 2:04 pm

@matt-man wrote:
@willis923 wrote:
grab some ether or carb cleaner, give it a snort. see if that fires it up. if not, pull your plugs and see if its getting spark. if there is spark, do a compression test.
I'll test spark once I head back out to the garage. It ran a year ago and the only thing I did was rebuild the carb so how could spark or compression loss be involved here?

Because when something lets go, it has to let go some time...

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
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B&S Opposed will not start Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- https://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- https://www.atltf.com/t2153-lawn-boy-utltv
MULEII- https://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII https://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 4:08 pm

before you go droping butt-loads of cash on a magneto, take off the kill wire. then retest for spark. if you have safety switches, one may not be working properly. pop the kill wire, re test. betcha youll have spark then

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


B&S Opposed will not start Pbucket

Chat moderator

1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
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matt-man
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 4:45 pm

@willis923 wrote:
before you go droping butt-loads of cash on a magneto, take off the kill wire. then retest for spark. if you have safety switches, one may not be working properly. pop the kill wire, re test. betcha youll have spark then
Engine is sitting in a test stand with no wiring harness. I even removed the kill wire from the coil completly
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 6:04 pm

New Coil! Neeext!  bounce 

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mr.modified
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 9:43 pm

@Thunderdivine wrote:
New Coil! Neeext!  bounce 

Guess so. Usually you don't see much trouble with electronic ignition coils on these small engines. At least I haven't for the most part. Only had one go bad on a mower I was working on for a guy, but it was made in the 80's somewhere and had a lot of use on it.
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matt-man
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 9:51 pm

@mr.modified wrote:
@Thunderdivine wrote:
New Coil! Neeext!  bounce 

Guess so. Usually you don't see much trouble with electronic ignition coils on these small engines. At least I haven't for the most part. Only had one go bad on a mower I was working on for a guy, but it was made in the 80's somewhere and had a lot of use on it.
This thing as far as I know saw very little use. That is according to the guy I bought it from. So who knows why it went out on me
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willis923
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeFri Apr 18, 2014 9:58 pm

when things sit, things quit working

_______________________________________________
-1974 bolens 1055 (Rolling Thunder)
-1989 Craftsman GT6000 (Blockhead)
-2004 Ford F-250 super duty FX4
-1999 Ford F-350 Superduty 4x4 7.3 Powerstroke


Lt wrote:
Feel free to try... Dont let anything but fear and common sense stop you. 


B&S Opposed will not start Pbucket

Chat moderator

1st Lieutenant, Volunteer Firefighter, EMT-B, Galway Vol Fire co. Galway NY
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Doc Sprocket
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeSat Apr 19, 2014 8:42 am

I'm not at all surprised. Had exactly that happen to me years ago. Did some gentle mods on my trusty old H60, test ran, put it away. Took it out of mothballs some months later. No fire. Coil simply died in the interim. Could be anything. A little moisture gets in there, corrodes one little spot in the windings, and BOOM. It's dead, Jim!

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
B&S Opposed will not start Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- https://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- https://www.atltf.com/t2153-lawn-boy-utltv
MULEII- https://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII https://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitimeMon Apr 21, 2014 10:57 am

the biggest problem with opposed twins that i have is the coil acting up. the 16 hp i got had a bad coil, would not start at al. the other one would not start if you shut it off.
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B&S Opposed will not start Empty
PostSubject: Re: B&S Opposed will not start   B&S Opposed will not start Icon_minitime

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