Sounds like it'll need a thourogh cleaning first,then you can diagnose the problem..it's probably gummed up with shellac and though you might get away with putting some Seafom in the gas tank and running it awhile to let it work in,I'm betting the tank and carb will need to be cleaned good with carb cleaner or acetone,,then adjusting the mixture will have some effect when you try adjusting it....as it sounds now, the carb is half clogged, and only the idle circuit is working..
8 hp Briggs surging bad
Guys, I pulled this old mower out of the moth balls. It literally has not run since 1999. Its a simplicity 707 with a Briggs 8 horse model 190707.
I cleaned the gas tank and shot some gas down the carb and it fired up. It took a while because I could not choke it. Once I got it running it was surging back and forth like crazy. The idle speed is find but it surges and when you try to open the throttle it will die on you. Seems like I have to shot more gas down the carb to get it going again. If you hold the throttle open manually it runs good to a point but it will die when you get into higher revs.
I fooled with the needle valve and it did not seem to make any difference and I have heard not to even think about messing with the governor.
Any ideas on this and what should I do? Thanks.
I cleaned the gas tank and shot some gas down the carb and it fired up. It took a while because I could not choke it. Once I got it running it was surging back and forth like crazy. The idle speed is find but it surges and when you try to open the throttle it will die on you. Seems like I have to shot more gas down the carb to get it going again. If you hold the throttle open manually it runs good to a point but it will die when you get into higher revs.
I fooled with the needle valve and it did not seem to make any difference and I have heard not to even think about messing with the governor.
Any ideas on this and what should I do? Thanks.
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Thanks, I took the tank off and drained it first and it was as clean as a pin on the inside. Im going to get a carb kit for it and while I have it down Im going to clean it real good and then try again.Sounds like it'll need a thourogh cleaning first,then you can diagnose the problem..it's probably gummed up with shellac and though you might get away with putting some Seafom in the gas tank and running it awhile to let it work in,I'm betting the tank and carb will need to be cleaned good with carb cleaner or acetone,,then adjusting the mixture will have some effect when you try adjusting it....as it sounds now, the carb is half clogged, and only the idle circuit is working..
Does anybody know how to tell what year the engine is made in from the numbers on it? Its a model 190707, type 2426014, code 888062012. Thanks for the help.
I went to the www.asecc.com site and used their reference chart,far as I can tell it was made somewhere between January and February ,1965...
Well, its on a 1966 Simplicity 707 and the original engine was a 7 hp. My grandad bought this new and Im not sure how many engines have been on it. I think this is the third or forth one. This little guy has really done a lot of work over the years. I know its pre 1996 for sure but I was wondering by the numbers if Briggs has a way to tell. Im trying to guesstimate the hours on it. This engine is no longer made I do know that much. The L heads dont meet emmision standards but this is the only thing that will fit this particular mower since its so small.I went to the www.asecc.com site and used their reference chart,far as I can tell it was made somewhere between January and February ,1965...
Once I get this engine lined out a full restoration will be underway. It will be my first time to try this but I think I can do it.
I have a similar model 19 Briggs,on my 1972 Sears Compact 8M,probably the original motor I'm 99% sure--the "19" series is an 8 HP engine,but its the same externally as the 7 HP model 14 engines of similar vintage..they used flatheads up until the mid 1980's,so you should have no trouble finding one if yours ends up needed replacing..
As for the refurbishing,you have to start somwhere,right?..sounds like a nice tractor to start learning on,and you'll be preserving a bit of family history in the process..that Simplicity will probably outperform most new "tractors" once its done I bet..
As for the refurbishing,you have to start somwhere,right?..sounds like a nice tractor to start learning on,and you'll be preserving a bit of family history in the process..that Simplicity will probably outperform most new "tractors" once its done I bet..
Not to get off topic but this mower has been an absolute workhorse for our family over the year. We have run the guts out of it and that includes three generations. Thats why I just cant let it go. I remember as a kid going to grandads to get it to mow our yard plus a lot my dad had. Dad only had a push mower back then so he borrowed the 707 every week.As for the refurbishing,you have to start somwhere,right?..sounds like a nice tractor to start learning on,and you'll be preserving a bit of family history in the process..that Simplicity will probably outperform most new "tractors" once its done I bet..
My grandad passed in 96 and it was given to me and I used it full time for 4 years still running the stew out of it. Finally, I gave in and bought a new Broodmoore. It still functioned perfectly though even after all of those years of abuse. These machines are really amazing considering the junk that is out there today. I think it cost like 600 dollars back in the day which was a lot.
If I can get the engine to run right I will the tear into it. Thanks for you help and Im sorry to get off topic.
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