Clutch Wear question

[hansgroenewold]

All very good info indeed, thank you very much. I did inspect the exit vent and found remnants of the destroyed belt inside of it, essentially blocking it. The other fan you show in the picture is OK, clean and it works. I had a question regarding the exit vent on the cover. I'm certain it's cleared now but should I feel air coming out of the vent when it's idling? I don't really feel anything and when I rev the engine, not much comes out either. Maybe that's the way it's supposed to be?

I also checked the variator/clutch cover temperature right over the clutch and was curious if anyone else has ever checked that after riding? I measured about 120 degrees right over the clutch after riding about 15 minutes. I imagine it gets pretty warm in there with the friction of the belt moving up and down, along with the variator and clutch moving in and out. I'm going to keep an eye on it, some feedback on that would be much appreciated. Thanks.

Best regards,
Hans

[Deleted]

*Withdrawn from forum* 

[hansgroenewold]

Thanks again for your help. I knew buying a Chinese scooter would mean more than average maintenance/repairs and that's fine . Between this forum and YouTube, I'm sure I'll be able to keep this baby on the road .

Best regards,
Hans

[GrumpyUnk]

If you have seen vehicle traffic in the Far East, you may have noticed that there are approximately 32,767,352 139QNB/GY6 powered scooters clogging the city streets, and the roads and highways. Likely 99% are hecho in China. People there depend on these little guys for transport of the whole family, and goods to and from market.
Given the numbers and usage, I suspect they are a bit more reliable than one might think.
There are shops alongside the road in some areas where you can get your worn out 39mm cylinder re-sized by a few millimeters, and a new piston/ring set that effectively renew the worn engine. That means people run them until the piston, rings, and cylinder are worn to the point they need replacement. They are not replaced, but are instead bored right there in little shops, and then honed to the desired diameter.
IOW, they run long enough to need new gizzards. They do not use Naraku parts... or any other brand you might find in a local shop. My bet is 99% are unbranded clutch and variator assemblies. Ditto the piston and ring sets fitted to the re-bored cylinders. The use is too necessary to expect the local customers to accept unreliable parts. Just my opinion based on observation. Before scooters became so available, it was bicycles used as daily transportation. Of the family, and all market goods.
tom