Lean Gas=Schorched piston:(

Discussion in 'General Questions' started by BchCruizer, Nov 7, 2012.

  1. BchCruizer

    BchCruizer Banned

    My brother inlaw was nice enough to take my precious bumblebee for a buzz around town. It would have been ok if he didnt use very lean gas with it!
    He came pedaling back! He's buying me a replacement engine for 90$ now. So its not to bad. guess im gonna have to ride my tandem bike until i get her back on road.

    im gonna get a picture of the piston and post..im sure its burned up bad.
     

  2. Fabian

    Fabian Well-Known Member

    I never knew pump grade gas came in variable air/fuel ratios - where can i get some 12.7:1
     
  3. BigBlue

    BigBlue Active Member

    Maybe it was Sup-lean gasoline, as opposed to Reg-lean and Mid-lean;)

    Chris
    AKA: BigBlue
     
  4. jaguar

    jaguar Well-Known Member

    you're just going to burn up your new engine since obviously you have an engine air leak or too lean an air/fuel mixture (which can happen all of a sudden by a small particle getting lodged in the main jet hole enough to just limit flow).
    check for leaks
    clean your carb
     
  5. BchCruizer

    BchCruizer Banned

    its a 2stroke engine. It takes a 40:1 oil ratio. It looked like maybe there was a teaspoon in a whole gallon. The gas barely even changed color. Usually when i mix it you turns in to a darkish blue. It was no where near that. He even told me he just poured the rest of my bottle in the gas can and it was only like a little over a teaspoon.
    He isn't mechanically inclined.so he didnt know..its all good though my replacement engine will be here in a day or 2. I was trying to get as many miles as i could outta my bee..my last one got 5,600 and i sold it and bought a new one. Guess im gonna have to start over.
     
  6. BchCruizer

    BchCruizer Banned

    the carb is tight. I keep it clean. It was just my brother in laws stupidity..lol..atleast he is gonna spring for a new engine..he say's man that hauled ***. Then all the sudden it stopped. Its like ya i bet it hauled butt. You put strait gas in a 2stroke engine..Atleast it made it a mile..
     
  7. BchCruizer

    BchCruizer Banned

    Its a 2stroke engine..Lean gas means theres not enough oil in the gas. Has nothing to do with the grade of the gas outta the pump..smoke another one guys..and this time pass it around.
     
  8. jaguar

    jaguar Well-Known Member

    sorry. "lean gas" is not a phrase I've heard to denote insufficient oil.
     
  9. Fabian

    Fabian Well-Known Member

    Ahh, now i understand
     
  10. BchCruizer

    BchCruizer Banned

    I was wondering if you guys understood what i was saying..if you dont mix enough oil in the gas its lean..thats just how we put around here..I got on my golden eagle today and had to add a link to the chain..havent been riding it as much..so i haven't kept up on maintenance..my new engine should be here any day now..I gotta a lock for my bike to so noone can just hop on it and ride..I shouldn't have to though seeing how its in garage..but between little brothers and brother inlaws im gonna have to..or atleast make sure it has the right oil mixture in the gas can..I dont mind them riding but i do mind them riding it and breaking it..lol
     
  11. Fabian

    Fabian Well-Known Member

    Firstly you have a problem: your brothers and brother-in-laws fail to respect that "your bike" is specifically "your bike", and it's not someone elses toy to youride and then walk away from the damage they've caused.
    Before you go too much further, that fundamental problem needs to be fixed; their lack of respect for your possessions.

    The engine needs a minimum about of oil added to the fuel. The very leanest oil/fuel mixture these engines will cope with (when given a hard time, for an extended period of time) is 40:1, but if really beating on the engine, you're best to run the oil/fuel ratio at 25:1
     
  12. BchCruizer

    BchCruizer Banned

    The bee engine is a designed to run a 50:1. since i ride rough i run it 40:1. it seems to be the perfect mixture. its only a 26cc engine. It would work at 25:1. but thats a little to rich.
    My inlaw did buy another motor for it so its not that bad. If he hadn't i would have been alot more upset. Plus ya know i hate tinkering on my bike when i should be riding:devilish:
     
  13. Fabian

    Fabian Well-Known Member

    I messed up. I though you were talking about the China Girl engine. I have no experience with such small capacity engines such as the Bumblebee. If the Bee engine is rated for 50:1 and they're prepared to stand by the warranty, you should run the engine at 50:1 oil/fuel ratio.
     
  14. BchCruizer

    BchCruizer Banned

    Bumblebee suggest that you run 40:1. The engines are rated for 50:1 before being transformed into bike engines. Homelite has carbs adjusted lean so they dont run as good as they do after they are built into bike kits. Bumblebee adjust the carb out so they can run at peak performance..warranty theres only a 90 day manufactors warranty..i had it longer than that..I asked why such a sort warranty and they said theres nothing to warranty nothing break its just engine and drive wheel theres no other parts to break and they told me that if the engine blows and its not from me running lean gas they would replace it for free as long as its under a year old. you just have to ask them about it. They are in the process of putting that on there website from what i have been told by my buddy.
     
Loading...