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 Higher Revs Initially

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4 posters
AuthorMessage
tarmacburner2
Silver Wing Guru
Silver Wing Guru
tarmacburner2


Number of posts : 1099
Age : 70
Location : Cleveleys, Lancashire, England
Points : 6407
Registration date : 2010-03-27

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PostSubject: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 6:00 am

Recently the scoot has had a strange condition. From cold when setting off the engine has to use higher revs for about the fist 3/4 mile or so. I'm talking 6000 revs to maintain a speed (indicated) of 40 mph. Then after that the revs drop to normal, 6000 revs would cruise the scoot at around 70 mph.
It can't be the belt as it that was worn then the revs to speed ratio would remain constant. My thoughts are that the variator pins are sticking (JCosta). Has anyone else had this and did a good cleaning and dry lubrication solve the problem. Looks like it is a half day in the garage checking it out - now where did I put that 8mm socket?
Any thoughts appreciated.
Cheers,
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tinman
Silver Wing Guru
Silver Wing Guru



Number of posts : 1298
Age : 76
Location : Matheson, Ontario, Canada
Points : 6003
Registration date : 2011-11-29

Higher Revs Initially Empty
PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 7:07 am

I seen variator pins ware out on the tips leading me to believe that the constant rubbing and heat friction would cause some bits to stick on the moving part of the variator plate. A problem that [ JCosta] have .
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tarmacburner2
Silver Wing Guru
Silver Wing Guru
tarmacburner2


Number of posts : 1099
Age : 70
Location : Cleveleys, Lancashire, England
Points : 6407
Registration date : 2010-03-27

Higher Revs Initially Empty
PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 8:09 am

Hello,

Looks like I'm checking the wear levels on the pins next week.

Found this site, is 16 gram the correct weight for the Silverwing or do I have to get the kitchen scales out?
http://www.sip-scootershop.com/en/products/variator+rollers+jcosta+80+_jc16025016

Cheers,
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marco
Scooter Rider
Scooter Rider



Number of posts : 91
Location : manchester
Points : 5232
Registration date : 2010-07-21

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PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 8:24 am

I might be wrong but dont j.costa have a office in Warrington??
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tarmacburner2
Silver Wing Guru
Silver Wing Guru
tarmacburner2


Number of posts : 1099
Age : 70
Location : Cleveleys, Lancashire, England
Points : 6407
Registration date : 2010-03-27

Higher Revs Initially Empty
PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 9:57 am

Hello Mark,
Searching the web they don't appear to have anything in the UK, even their UK website doesn't exist anymore.
Ordered 15.5 gram pins from Germany. Will get a new belt at fit that at the same time, keep the current one for spare - carry it with me on long trips.

Cheers,
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jodders1
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jodders1


Number of posts : 47
Location : Lancashire UK
Points : 4891
Registration date : 2011-05-09

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PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 1:37 pm

could put the honda variator you have back in and take it for a spin to see if the revs become constant to prove your jcosta pins theory
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tinman
Silver Wing Guru
Silver Wing Guru



Number of posts : 1298
Age : 76
Location : Matheson, Ontario, Canada
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Registration date : 2011-11-29

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PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 4:19 pm

Just my opinion the JCosta has 12 pin .The Honda variator has 6 rollers, 28grams x 6 =168 grams, J costa !@ pins X 16 grams = 192 grams. That might make your Swing slugish. Your call. Sad Sad
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tarmacburner2
Silver Wing Guru
Silver Wing Guru
tarmacburner2


Number of posts : 1099
Age : 70
Location : Cleveleys, Lancashire, England
Points : 6407
Registration date : 2010-03-27

Higher Revs Initially Empty
PostSubject: Re: Higher Revs Initially   Higher Revs Initially I_icon_minitimeSun Sep 30, 2012 5:30 pm

Hello Tinman,

I think the new JCosta variator has only twelve pins, mine however has sixteen.
16 x 15.5 = 248.
As it is a totally different design it is difficult to compare the two accurately.
The JCosta is a competition item, it isn't really marketed as an everyday upgrade. However the performance of the Silverwing with one is far better than a stock scooter or one with 26 gram DP Sliders in it. I tried it. Plus the scooter has less vibration which even if it gives a lower miles per gallon return the comfort factor makes up for it.
Off to my local Honda stealer tomorrow to order a new belt.
Cheers,
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