Oh my god I rode it.

and then it died a mile away from my house. I'm talking about my 78 Sparta that I have been working on for many many months. Today was the first time it started and stayed running for a while. When I first got on it ran well and did so for about a mile. Then there was a serious loss of power in acceleration, it seemed really bogged down. Eventually it would barely go and started making some unpleasant noises. It finally cut off. When I tried to start it again it felt like the cluth was slipping a bit (or wouldn't catch) and then it would start and backfire and then die. Any ideas on what's happening? I know this is all pretty vague but it's the best I can explain it. I put a new condensor in it today so I know that's not it and the timing ad points are perfect (electronically tested in richmond.) Please help me?

Re: Oh my god I rode it.

Does it still have good compression?


Live to ride, Ride to work

Re: Oh my god I rode it.

don't know, I'm gonna have to get a tester. would it loose compression by something wiggling loose?

Re: Oh my god I rode it.

no but if you broke your rings it would. you dont need a compression tester just to see if something is wrong. put your thumb over the sparkplug hole and turn the engine. if the air just squeaks by your skin you have a problem. it should pop your thumb off the hole.

Re: Oh my god I rode it.

do rings commonly break? I just installed them in richmond....also I got on a pedaled for a second just now and it sounded not to good like the picton was scraping in the cylinder. i'm horrified.

Re: Oh my god I rode it.

Luckily on an air cooled machine a top end replacement is not very difficult. Finding the parts may be more of a problem. Before doing anything you want to figure out what has caused this to happen. Do you premix oil? Has the injector failed? Was there a significant ammount of crab built up in the gas tank? How do the fuel filters, if any, look? The worst thing you could do is fix it and have something like this happen all over again.

Re: Oh my god I rode it.

Cole Todorovich /

i like those low bars. sorry its broke.


Re: Oh my god I rode it.

Try changing the condensor, if the moped will run fine if it's cold that is.

grz Thijs

Re: Oh my god I rode it.


i have never had a ring break before, but i have had a wrist pin clip come out of the seat before. the moped immediately quit running and i needed a new piston and cylinder. relatively easy job, just very expensive.

Re: Oh my god I rode it.

Does this have points or an electronic ignition system... my moped did this when the flywheel was slipping (magneeto) cause that little pin had fallen out.

Re: Oh my god I rode it.

See the above post with this phrase,

". . . Was there a significant amount of crab built up in the gas tank? . . ."

You really have to look out for the buildup of sea life in your gas tank. I had barnacles in my gas tank once and that was a big problem.

Just kidding. I have been known to mistype a word now and then.

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