Yet Another Belt Thread
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Granturismo 218
Joined: 04 Feb 2013
Posts: 6589
Location: NWAOK
Wed Mar 21, 2018 10:37 am quote
waspmike wrote:
In one of your posts I believe you alluded to people buying stuff for their scoots because someone on the internet reported that they had done it and...

There is a guy on a local Thai forum here who bought some anonymous variator for his Yamaha because he saw a video! And it will do 150 kph on the stand! No mention in the video that one needs twice the Hp the scooter develops to get to 150.

It is cheap and comes with a lot of bits... Go figure!
I'm on ebay and I had a guy ask about some of the parts we carry because he want's to make his girlfriend's Yamaha Jog 50 go faster, not a lot faster, but at least 60mph.

And someone will sell this guy some stuff that he claims will make it go that fast. But that's not gonna be me.
Ossessionato
LXV 150 3v ie. Midnight Blue (Sold)
Joined: 06 Dec 2010
Posts: 3482
Location: Kingdom of Lanna
Wed Mar 21, 2018 6:09 pm quote
I found the final gearing for a 50 but 2T. 13/46 and 13/48
It was not in a place I would have looked if not leaning towards a 2T future project.
I still don't know if the 50 4T ones are the same?.
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Granturismo 218
Joined: 04 Feb 2013
Posts: 6589
Location: NWAOK
Wed Mar 21, 2018 7:40 pm quote
It has a part number. See if it's the same on both bikes.
Ossessionato
LXV 150 3v ie. Midnight Blue (Sold)
Joined: 06 Dec 2010
Posts: 3482
Location: Kingdom of Lanna
Thu Mar 22, 2018 12:35 am quote
A PhD thesis but I will get to it. Already updated the Wiki page
Lurker
Joined: 21 Aug 2014
Posts: 2
Location: Singapore
Thu Mar 22, 2018 12:57 am quote
I'm riding a GTS300 and recently did a servicing on my bike (ie.change roller/belt/oil/etc). Unfortunately for me, i only found out that the mechanic had used a belt that was meant for the GT 200 when i went to change the rollers about 2 weeks later at another shop as i didn't like the weight of the rollers that was previously being used.

When i went back to mechanic who previously serviced my bike, he mentioned that there's minimal difference between the two and the belt can still be used for the 300 cc.

thoughts on this matter? my worry is that it might affect the crankshaft in the long run as the length of the belt is about 11mm shorter.
Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2080
Location: Googleville
Thu Mar 22, 2018 3:14 pm quote
azmi_3000 wrote:
my worry is that it might affect the crankshaft in the long run as the length of the belt is about 11mm shorter.
Won't damage anything. Worst case might lose a little top end as shorter belt wont be able to go as high on the front pulley.
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Granturismo 218
Joined: 04 Feb 2013
Posts: 6589
Location: NWAOK
Thu Mar 22, 2018 9:40 pm quote
The Polini racing belt for the GTS is shorter than the stock belt for the GT200. They don't seem to damage the crankshaft either.
Member
Sr 125
Joined: 02 Apr 2021
Posts: 6
Location: Cambodia
Fri Apr 02, 2021 2:03 am quote
Hello. I joined here just to reply to this man's post. Aprilia left Cambodia in 2016. There is only one Vespa dealer here and they think 1 type of sparkplug goes in every Vespa/Piaggio model made. Not j/k.

I am going through exactly what this OP posted about. My 2016 sr 125 Powerlink 879057 belt broke this morning. It shows the size of 789 22.5.

The vespa dealer installed piaggio belt 82646r. As far as I can tell, it's 814 22.5 and the scoot drives differently.

Will I lose any top speed? Every once and a while we drive to see my wife's mother's house out in the country and I certainly don't want to lose top speed.

thanks for any advice and sorry to dig up an old thread.
Veni, Vidi, Posti
LX190, Primavera
Joined: 12 Oct 2007
Posts: 6971
Location: New Zealand
Fri Apr 02, 2021 2:09 am quote
ravensnest1 wrote:
Every once and a while we drive to see my wife's mother's house out in the country and I certainly don't want to lose top speed.
You're in a hurry to see your Mother in law?

Really?

Welcome to MV.
Member
Sr 125
Joined: 02 Apr 2021
Posts: 6
Location: Cambodia
Fri Apr 02, 2021 3:12 am quote
znomit wrote:
You're in a hurry to see your Mother in law?

Really?

Welcome to MV.
HAHA! Thanks for the laugh, much needed.

Do you know the results of going from a 789mm to an 814 mm belt? I noticed pulling out of the dealer that it was not right and brought it right back. They said they have now changed the weights too.

What should I expect- gain or lose top speed?

TYIA
Addicted
BV 350
Joined: 22 Nov 2016
Posts: 882
Location: Nebraska
Tue Apr 06, 2021 1:01 pm quote
Actually
Actually, there's quite a bit of legal controversy right now about 'right to repair'. Manufacturers try to say you are buying the services of the machine, not the actual machine. Courts don't tend to see things that way. Software is different, because you are not buying something tangible. Although, even there, there are limits as to what the 'manufacturer' is allowed to do without telling you. Lots of things get slipped into the EULA that almost no one ever reads, granting rights and privileges to the supplier. Sometimes they hold up, sometimes not.

Right now, John Deere is front and center:

https://www.extremetech.com/electronics/320183-john-deere-fails-to-uphold-right-to-repair-agreement-signed-in-2018
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