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Sep 12th, 2011, 7:25 pm
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#1 (permalink)
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Senior Member
Join Date: Nov 2009
Location: Central Square, NY, usa
Posts: 433
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cheap accurate belt tensioning.
After a few weeks of testing and two computer viruses. i have found a reliable way to test and adjust the belt tension by frequency. All you need is an android smart phone. The app to download is gStrings v1.0.9 from cohortor.org. There is a free version of the app or you can pay $2 and not have commercials. Instructions are available on the cohortor site and other than mic adjustments that are clearly spelled out I did nothing with the program. I tried 7 different programs and apps and this was the easiest to use and after testing turns out to be very accurate. I tested this app on a Motorola and two LG smart phones and saw no change in accuracy. I tested the app on my phone with a calibrated frequency generator and it was accurate to +/- 1.6hz in the required range. Then I compared my phone to others and got the same readings.
I know not everyone has a smart phone but hopefully you have a friend with one that you can use.
__________________
This is just my opinion and based on my very limited knowledge, but thats what the Internet is for giving losers the ability to show their ignorance in public.
10 Ducati Multistrada 1200s Touring black "Multard"
09 Ducati Hypermotard 1100s black "Tard"
09 Honda CRF230L
08 Husqvarna TE610 everything the honda wasn't black, sexy, italian, fun to ride.
08 Yamaha FJR1300 black "Betty"
05 Honda CBR1000RR black "Monster"
69 Keiser/Jeep M35A2 WO/W camo "HULK"
58 Dodge M37A1 WO/W OD "Mini me"
68 AM/General M543A2 W/W camo, the wife rolled her eyes hard at this one. may be approaching my limit.
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Sep 12th, 2011, 8:21 pm
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#2 (permalink)
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Senior Member
Join Date: Dec 2008
Location: Yuma, AZ, USA
Posts: 450
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That sounds awesome. But I don't think my girlfriend would believe me if I told her the app on my phone called "gStrings" is for setting belt tension on my Ducati.
__________________
'08 S2R1000
'03 RC51
'02 ZX-7R, The green meanie (sold)
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Sep 12th, 2011, 10:26 pm
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#3 (permalink)
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Senior Member
Join Date: Jul 2009
Location: West Palm Beach, FL, USA
Posts: 159
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I did my belts 2 years ago on my iphone - free app as well (easy tune) and knock on wood still great.
__________________
1999 996s
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Sep 13th, 2011, 10:58 am
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#4 (permalink)
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Senior Member
Join Date: Feb 2011
Location: Portland, Oregon, USA
Posts: 518
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Quote:
Originally Posted by rtzx9r
I did my belts 2 years ago on my iphone - free app as well (easy tune) and knock on wood still great.
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What do the belts need to be tuned at?
__________________
1999 750SS
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Sep 13th, 2011, 12:40 pm
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#5 (permalink)
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Senior Member
Join Date: Mar 2004
Location: SW of Boston, MA, USA
Posts: 1,901
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Used belts should be around 85 hz, new should be around 110 hz, ± 2 hz. on an ambient temperature engine. They would be "plucked' between the common drive pulley and the idler, the slack side of the belt. The belts spin counter-clockwise.
__________________
'05 ST3
'90 906 Paso
It's not just a Ducati, it's a disease!
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Sep 13th, 2011, 7:37 pm
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#6 (permalink)
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Senior Member
Join Date: Nov 2009
Location: Central Square, NY, usa
Posts: 433
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also cylinder being checked should be at TDC compression stroke. my mechanic said latest specs were 90hz +/- 5 used and 110hz +5-10 new. the belts on my multi were 115 new.
__________________
This is just my opinion and based on my very limited knowledge, but thats what the Internet is for giving losers the ability to show their ignorance in public.
10 Ducati Multistrada 1200s Touring black "Multard"
09 Ducati Hypermotard 1100s black "Tard"
09 Honda CRF230L
08 Husqvarna TE610 everything the honda wasn't black, sexy, italian, fun to ride.
08 Yamaha FJR1300 black "Betty"
05 Honda CBR1000RR black "Monster"
69 Keiser/Jeep M35A2 WO/W camo "HULK"
58 Dodge M37A1 WO/W OD "Mini me"
68 AM/General M543A2 W/W camo, the wife rolled her eyes hard at this one. may be approaching my limit.
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Sep 20th, 2011, 2:33 pm
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#8 (permalink)
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Member
Join Date: Aug 2006
Location: Lebanon, MO, USA
Posts: 54
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Sounds like a great idea. Technology is a wonderful thing.
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