2 horse briggs runs rough at top speed

Discussion in 'Mechanic and Repair' started by Robert Doubrava, Sep 1, 2001.

  1. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    i hope i can fully restore it. it is in pretty good shape right now, but it can look better!:D :blob3: :blob4: :blob1:
     
  2. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    Robert, Your never too young to work on small engines. If your going to restore that edger then start with a major tune up. Start by adding electronic ignition. Go to your small engine parts store and ask for the Mega-Fire or Nova ignition module. Or one like them. Then buy a carb kit and install that. This will probably get it running fine.
     
  3. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    there is a store in my town called mec cushman motor sales. they sell small engine parts, and they repair them. i like to go there and look at everything they have. it is a really cool store.:) when we overhauled the 7 horse briggs on the jacobsen, we bought every part for the engine at that store. for a rod, gasket set, breather tube, bowl gaket, and other miscellanious parts, it cost about 70.00 altogether. it was a good price for so many parts!:) :blob3:
     
  4. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    the starter handle broke on it and i was wondering what kind of handle i should put on it.:blob3: :blob4: :blob1:
     
  5. vipermanz

    vipermanz LawnSite Bronze Member
    Posts: 1,773

    just go to homedepot and buy a starter handle and rope kit,they're all the same in the long run
     
  6. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    i was looking for one of the rubber two-piece handles with the logo on it.
     
  7. vipermanz

    vipermanz LawnSite Bronze Member
    Posts: 1,773

    go to a b&s dealer then, they have all the oem parts
     
  8. sdwally

    sdwally LawnSite Senior Member
    Posts: 385

    Sounds like the valves need adjusted. If the clearance is to small, at high speeds and when hot the unit can back fire. Usually the problem is the exhaust valve since it expands the most. Find the valve cover, usually behind and under the carb. Remove cover and check the valve lash, 0.007" intake and 0.011" exhaust(feeler gauge). If they don't slide in easy the engine needs a valve job. If this is the problem post a new message label valve job and I will respond, if you are up to it.
     
  9. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    when my dad and i were in seguin, we went to a hardware store, and they had one.which was plastic, but i didn't care.it was good enough. i wish i could do a valve job on it, but my dad will have to help me, but he has been very busy. they had an explosion where he worked about a month ago, and he has had to work a lot. the reason why i cant do it myself, is because im only 14. i have not had a lot of practice. i am probably going to buy this briggs and stratton CD rom repair manual at wal mart for only 20.00. i usually go to www.briggsandstratton.com to the trouble shooting page for help. its cool. :blob3:
     
  10. vipermanz

    vipermanz LawnSite Bronze Member
    Posts: 1,773

    that might help you some but you might want to try out a small engine course, it helped me out alot, and now i can disassemble and reassemble an engine easily,(And It Actually Worked!!!!!!):D
     

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