Einleitung
My 1984 Suzuki FA50 was exhibiting some interesting problems. Although it ran fine a year ago, I could not get it running for the life of me. The problem was most likely a stuck throttle cable that I unstuck using some brute force. However, I figured it would also be nice to get my hands dirty and do an overhaul of the carburetor and engine. So here it is!
Note: The teardown was done backwards. I already disassembled the moped, and then took pictures reassembling it together. You may notice that some parts look new -- it's because they are.
Note #2: I figured it would be good to ring in the new year with a solid teardown, so I published it right on 12:00 AM PST, January 1, 2010 :)
Werkzeuge
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There's no rage against this machine.
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Looks great, except it doesn't run.
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Its 50 cc engine lets me go downhill at almost 28 MPH when it does run. Uphills, not so much. Depending on the hill (and my head start), I may or may not have to walk it up.
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In retrospect I figured out i that I didn't need to remove the exhaust cover, but what the heck... When in Rome, right?
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Took off the air intake box.
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That's contractor-grade 3M packing tape holding the airbox together. Only the best for my moped.
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I then proceeded to access the wiring underneath the gas tank.
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First I removed the protective brace on top of the oil/gas tanks using a 10 mm socket wrench.
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I set aside the fuel tank and bam! -- the wires were ready to be disconnected.
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The wires must have been minding their own business since '84... Separating them was quite a challenge. Thankfully they had those round connectors on them, so I didn't have to solder or crimp anything when reassembling the moped.
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I paused for a minute to enjoy a cold cup of Diet Coke, and to drain all the 2-cycle oil...
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I got the Goliath "freezer" mug in Six Flags Magic Mountain about 6-7 years ago. Best investment I ever made, aside from marrying the wife. It's the gift that keeps on giving!
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Ikea bowls come in quite handy. Turns out there was enough 2-cycle oil to fill the entire bowl to the brim!
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I had a difficult time figuring out what I was doing in these pictures. According to the manual, I was removing the oil pump cover and oil hose.
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Unscrewing the smaller valve, which I believe to be the carburetor choke cable.
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My culprit resides beneath the carburetor top cover. Even though I reassembled the moped, I'll have to investigate the throttle cable going into the carburetor.
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Rear brake gets disconnected next. The cable needs to be free since the brake lever will come off with the rest of the frame.
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The rear spring gets unsprung using a 14 mm socket wrench.
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Nothing crazy happened when I disconnected it, however.
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Finally, the large frame screw can be removed. This is the last piece of hardware holding the frame to the rear wheel / engine.
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I had to use two 17 mm wrenches -- a socket on one side, and a ratcheting wrench on the other.
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Now on to the engine.
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Spark plug comes out with a strong flick of the wrist.
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The plug looked like it was the original one that came with the moped. Dirty dirty!
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I continued by removing the front part of the engine using a 10 mm socket wrench. I found plenty of buildup inside.
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I wanted to see what a "flywheel magneto" looked like, so I decided to remove this cover. I figured anything named after an X-Man is worth a look...
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I stripped the Phillips originals while taking the cover off. I replaced them with appropriately-sized 20 mm hex-head screws.
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This is a 65 mm replacement I ordered online, along with news seals and stuff.
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The reed valve is a very important part of the moped, according to the service manual. The metal bars have to be bent a certain way, and other stuff.
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I had quite a difficult time shooting a "final layout" shot. I gave up after 5-10 pictures; this one was the best of the bunch.
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That's it! Hope you enjoyed my teardown!
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6 Kommentare
I am looking for some close up pictures of where exactly the wiring harness runs, I am putting a shuttle back together that I did not take apart, both front and rear photos would be helpful
eric -
I am looking for a manual how to replace my spark plug of my Suzuki FA50. Can you help me?
Do you know if the crank case would be the same for a 84 as it would be for a 83 im purchasing a new crank case for my 83 but found a 84 crank case for cheap
Mine is a different model. The FA50 graphic on the side looks older. I would get it running if I knew how. Still it's probably an older one or maybe you have a special edition.
duuude -