All-Terrain Lawn Tractor Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSite RulesEventsFAQSearchRegisterLog inBuild-Off

 

 opposed twin won't idle.

Go down 
5 posters
AuthorMessage
TokyoDrift99
Member
TokyoDrift99
Member


Age : 24
Join date : 2014-03-28
Points : 3796
Posts : 111
Location : Vermont

twin - opposed twin won't idle. Empty
PostSubject: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 11th 2014, 5:40 pm

Hey guys, I got a briggs opposed twin running that has been sitting for a number of years. The second time I started it the engine ran shoddy, but I could drive it around and such. It just randomly died, and now every time it starts it will fire up, rev REALLY high and die. If I modulate the choke I got it to idle for about 30 seconds. What can I do??? (I have cleaned the carb, and the gas is relatively fresh.)
Back to top Go down
redlinemotorsportts
Moderator
redlinemotorsportts
Moderator

2500+ Posts
2500+ Posts!
2014 Build-Off Entrant
2014 Build-Off Entrant

Age : 27
Join date : 2013-03-18
Points : 7245
Posts : 3131
Location : raleigh nc

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 11th 2014, 6:42 pm

Sounds like it isn't drawing gas. I'd buy a fuel pump rebuild.
Back to top Go down
willis923
Veteran Member
willis923
Veteran Member

1000+ Posts
1000+ Posts!

Age : 27
Join date : 2013-04-10
Points : 5523
Posts : 1408
Location : Galway NY

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 11th 2014, 7:59 pm

x2 on Red. fuel starvation issues
Back to top Go down
Thunderdivine
Veteran Member
Thunderdivine
Veteran Member

1000+ Posts
1000+ Posts!

Join date : 2012-12-21
Points : 6305
Posts : 2101
Location : Norway, Europe

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 11th 2014, 9:05 pm

I would clean the carb again, let it soak in fresh petrol for an hour or so. If everything was A ok before it started running on choke only.
Back to top Go down
TokyoDrift99
Member
TokyoDrift99
Member


Age : 24
Join date : 2014-03-28
Points : 3796
Posts : 111
Location : Vermont

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 11th 2014, 10:00 pm

I don't think it is starving for fuel, when I first turned it over fuel shot out the line coming from the pump. I will check when I get home though. I don't know about cleaning the carb though, I was really thorough on the inside, I used almost half a can of gumout.
Back to top Go down
mr.modified
Veteran Member
mr.modified
Veteran Member

2015 Build-Off Top 3 Winner
2015 Build-Off Top 3 Winner
2016 Build-Off Top 3 Winner
2016 Build-Off Top 3 Winner
2018 Build-Off Finalist
2018 Build-Off Finalist
2022 Build-Off Entrant
2022 Build-Off Entrant
2500+ Posts
2500+ Posts!
1st Place Build-Off 2014
1st Place Build-Off Winner 2014
2023 Build-Off Entrant
2023 Build-Off Entrant

Age : 34
Join date : 2013-11-02
Points : 6925
Posts : 2906
Location : New Jersey USA

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 12th 2014, 12:08 am

Sometimes when you clean out a carb, you miss a small opening somewhere or don't take something apart that you didn't notice at first. Make sure to check everything closely. Also it is possible to have the mixture set wrong and have trouble when you think it's ok.  I'm in the process of cleaning out some motorcycle carbs and I soaked them in carb cleaner the first time and the bike wouldn't run. Then I realized that the idle mixture screws are covered with a plug so that no one trys to adjust them after it leaves the factory. Once I drilled out the plugs and recleaned them, the bike runs. (Although it still didn't run perfect, and now I'm cleaning them again to really make sure I've got them) But that's besides the point. Your best bet would probably be to re-clean the carb and then give it another shot.
Back to top Go down
TokyoDrift99
Member
TokyoDrift99
Member


Age : 24
Join date : 2014-03-28
Points : 3796
Posts : 111
Location : Vermont

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 12th 2014, 10:18 am

I'll mess with the mixture today, but if that doesn't do it I'll clean the carb again.
Back to top Go down
TokyoDrift99
Member
TokyoDrift99
Member


Age : 24
Join date : 2014-03-28
Points : 3796
Posts : 111
Location : Vermont

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 12th 2014, 2:27 pm

so now gas is shooting out of some hole on the top of the carb, and it is kind of spraying gas out the choke. What gives?
Back to top Go down
Thunderdivine
Veteran Member
Thunderdivine
Veteran Member

1000+ Posts
1000+ Posts!

Join date : 2012-12-21
Points : 6305
Posts : 2101
Location : Norway, Europe

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 12th 2014, 2:42 pm

TokyoDrift99 wrote:
so now gas is shooting out of some hole on the top of the carb, and it is kind of spraying gas out the choke. What gives?

When you had it apart and during assembly, did you see and pay attention to the tiny hole on one side but missing on the other side of the gasket?
(just throwing out ideas here)  bounce  - Well many put it the wrong way.
Back to top Go down
TokyoDrift99
Member
TokyoDrift99
Member


Age : 24
Join date : 2014-03-28
Points : 3796
Posts : 111
Location : Vermont

twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitimeApril 12th 2014, 3:31 pm

Thunderdivine wrote:
TokyoDrift99 wrote:
so now gas is shooting out of some hole on the top of the carb, and it is kind of spraying gas out the choke. What gives?

When you had it apart and during assembly, did you see and pay attention to the tiny hole on one side but missing on the other side of the gasket?
(just throwing out ideas here)  bounce  - Well many put it the wrong way.

what gasket? They were all stuck to the carb, and I couldn't get them off.
Back to top Go down
Sponsored content





twin - opposed twin won't idle. Empty
PostSubject: Re: opposed twin won't idle.   twin - opposed twin won't idle. Icon_minitime

Back to top Go down
 
opposed twin won't idle.
Back to top 
Page 1 of 1
 Similar topics
-
» 14.5 hp opposed twin wont run after first start
» 18 hp Opposed twin wont turn over
» 18.5 hp opposed twin
» 16 hp b&s opposed twin problem
» 20hp opposed twin

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Engine Tech :: Briggs and Stratton-
Jump to: