Clinician
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Post by solanocycle on May 20, 2015 9:30:08 GMT -6
Another common metallic sound is the starter bendix rubbing on the starter gear. Can't remember the setup on the Mio, but if it has a bendix inside the transmission, you can put a small dab of grease on both ends where it fits into the outer and inner case. This sometimes helps quite it down. Just a dab of grease inside the holes, not outside. Don't want it getting on the belt. This would NOT be a rotational sound, however. It would just be a metallic rattle at certain rpms from the vibration of the bike. It is caused from excess play. You could replace the parts, but it is usually nothing to worry about, just annoying. Rotational is usually clutch assembly/gearbox related. But, if your variator was loose, it could still be out of round/damaged on crank.
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Post by solanocycle on May 11, 2015 20:25:25 GMT -6
Yes. Change the gear oil and look for metal. May be in your gearbox. How many miles or kms are in the bike? I assume the tech checked your roller weights and slides on the variator or replaced them? If your variation was loose, that is very very bad if it was run for any period of time, and may have do everything damage to the crank and not let the new variator tighten properly.
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Post by solanocycle on May 11, 2015 20:09:10 GMT -6
If you are going to modify it, get a 2 stroke. Stock, 50cc 2 and 4 strokes tend to go about the same speed now. 4 strokes are smoother, quieter, get better fuel economy, pollute less, and now are slightly easier to get parts for since 2 strokes are slowly disappearing. 2 strokes are easier and more fun to modify, and are capable of producing more power than most 4 strokes. But, to pass emissions, they are now saddled with a lot of emissions controls which slow them down. A good 2 stroke for speed is Genuine. Those puppies are still fast. Durability and refinement, KYMCO.
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Post by solanocycle on May 11, 2015 19:54:10 GMT -6
We sell KYMCO, SYM, Genuine, Adly, chinese, and just about everythinget else. Chinese are getting better, but the quality is still inconsistent. You might get one to last 20k, but most will dispose of it before 10k. A typical KYMCO, SYM, Genuine, or Lance will last 2 or more times as long as a typical Chinese bike And will have a lower cost of ownership during it's life. Eg. Chinese 50cc belts snapped around 3-7k km. KYMCOS at 12k. Same is true for about all the other components. A Chinese bike is about $900, KYMCOS and Lances (aka SYM) start at 1500 But come with real 2 yr warranties. Our taiwanese buyers are more satisfied than our Chinese scooter buyers.
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Post by solanocycle on May 11, 2015 19:42:53 GMT -6
KYMCOs usually call for 87 octane. Most brands call for 91, but since 91 isn't readily available in the US, you run 93. Personally, I think the vast majority would run fine on 89 or even 87 as the previous person mentioned.
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