Author Topic: 2008 Agility 50 rattling at speed  (Read 8199 times)

Kenho21

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Re: 2008 Agility 50 rattling at speed
« Reply #15 on: July 04, 2012, 10:42:51 PM »
Word- So even after a new variator was installed the rattle was still present?
2009 Kymco Agility 50- 72cc Airsal kit, Uni Free-Flow Air Filter, Main Jet 120, 1500 Contra Spring, 6g Rollers, Malossi Multivar Variator, NCY Exhaust, NCY 80cc Camshaft, Cut CDI, Smooth Boss Drive, MRP Ignition Coil

wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #16 on: July 04, 2012, 10:49:42 PM »
..man, that 08 rattled for 55,000kms...

..the 09 engine that i put on the 08's frame has been rattling for another 25,000kms...

...let me throw this question out to everybody reading...

..can anybody move the engines output shaft in and out...any at all?

..talking about the shaft that the variator rides on...

..next time ya'll in the cvt, just see if it moves...

..my 08 always did...


..that being said, i just read the op...

..brother man might possibly have a problem, if its just at top speed that th scoot rattles...
« Last Edit: July 04, 2012, 10:55:20 PM by wordslinger »
..every mod (action) necessitates a (reaction) mod..

wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #17 on: July 04, 2012, 10:58:48 PM »
Word- So even after a new variator was installed the rattle was still present?

..it was only after i installed the malossi that i noticed it...

..kenho, you were around here back in those days..lol..

                                  :o
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streido

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Re: 2008 Agility 50 rattling at speed
« Reply #18 on: July 04, 2012, 11:10:16 PM »
Yeah my shaft moves a little, moves maybe a mm or there abouts. I only noticed it a few weeks ago. Dont think its an issue, my VW beetle does the same, its called end float. As long as its not excessive its fine, its a good way to check the condition of a air cooled vw engine by giving it a yank. If it moves more than a mm or so its a sign the engine is worn and need a rebuild, a little movememt is normal tho, at least on vw engines.

I really only heard the noise after i derestricted, dont think it was there before that. Dont think its anything to worry about since so many others have noticed it too.
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wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #19 on: July 04, 2012, 11:11:41 PM »
..ive never seen an a50 without the rattle...
..every mod (action) necessitates a (reaction) mod..

wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #20 on: July 04, 2012, 11:13:52 PM »
..however, that a50 that i found for my buddy rico...nowww....

..that was a very quiet, and strong engine...

..every mod (action) necessitates a (reaction) mod..

Kenho21

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Re: 2008 Agility 50 rattling at speed
« Reply #21 on: July 04, 2012, 11:23:23 PM »
Ohhh, the good ol' days...

Obviously something in the variator then... it never seemed like it was something to worry a lot about, but it's annoying as hell
2009 Kymco Agility 50- 72cc Airsal kit, Uni Free-Flow Air Filter, Main Jet 120, 1500 Contra Spring, 6g Rollers, Malossi Multivar Variator, NCY Exhaust, NCY 80cc Camshaft, Cut CDI, Smooth Boss Drive, MRP Ignition Coil

wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #22 on: July 04, 2012, 11:24:21 PM »
..it is annoying...
..every mod (action) necessitates a (reaction) mod..

streido

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Re: 2008 Agility 50 rattling at speed
« Reply #23 on: July 04, 2012, 11:33:16 PM »
I used to think it was my variator guides hitting off the ramp plate plastics as it spins, still think that may be all it is.
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wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #24 on: July 04, 2012, 11:37:07 PM »
...rattle-rattle-rattle...
..every mod (action) necessitates a (reaction) mod..

whiteknight

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Re: 2008 Agility 50 rattling at speed
« Reply #25 on: July 05, 2012, 12:10:37 AM »
mine makes a whistling noise when i accelerate, sounds like a turbo.  ffffffeeeeeEEEEEWWWWWWWW!!!!
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2010 Kymco Agility 72..Naraku 72cc race cylinder...Naraku 50cc race head
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NGK Irirdium plug...Naraku Race Variator...Malossi fly clutch
Stage 6 cnc clutch bell...1500 Rpm torque sprin

wordslinger

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Re: 2008 Agility 50 rattling at speed
« Reply #26 on: July 05, 2012, 12:11:28 AM »
..lol, yeah, i hear that as well..
..every mod (action) necessitates a (reaction) mod..

whiteknight

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Re: 2008 Agility 50 rattling at speed
« Reply #27 on: July 05, 2012, 12:29:27 AM »
i like that noise....sounds cool and people turn to see what the hell is making the strange noise then see an Agility....confused faces all around and a big smile on my face.
Courage is measured in how much tyre you use.

2010 Kymco Agility 72..Naraku 72cc race cylinder...Naraku 50cc race head
Naraku Race CDi...Polini free flow filter...Motoforce Racing Carb
NGK Irirdium plug...Naraku Race Variator...Malossi fly clutch
Stage 6 cnc clutch bell...1500 Rpm torque sprin

KTIzkhanilov

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Re: 2008 Agility 50 rattling at speed
« Reply #28 on: July 07, 2012, 03:09:07 AM »
http://www.kymcoforum.com/index.php?topic=4739.0

Kinda hard to tell cuz I'm sitting here with friends while they watch a crappy movie, but I believe my noise is the same as the one in this link, the third video down.

Soon as my friends leave I'll turn up the volume and confirm hahaha

I checked out the video you mentioned, and to tell you the truth, the sound isn't that intense.
It comes and goes, and sounds more like something is bouncing around than something is rattling... it's hard to explain.

While I'm posting, there are a few patterns I've noticed:

- While riding the scooter with a cold engine, the wheels lose torque for a split second at a time.  This happens every 4-5 seconds at random, and often isn't too serious.  When this happens it sounds like the RPM drops a little and returns to normal as the wheels regain torque.

- Once the engine has warmed up, the issue seems to back off a little bit, and happens less.

- This issue occurs more frequently and worse in hot weather.  I rode it this evening with temperatures in the mid 70s and it performed better than it has been.

- Easing up to speed helps to avoid causing the issue.  If you ease up to speed and be gentle with the throttle, not opening it completely to accelerate, the issue occurs less frequently, and the moped performs better overall.  Punching the gas, so to speak, only serves to make performance worse.

- The rattling stopped mid-ride and was replaced with a very faint but detectable buzzing noise.  To experience this noise, go find a bicycle and begin spinning the back tire with the pedals, then grab a leaf and set the leaf just barely against the spinning rubber.  The grinding-buzzing you hear is the closest sound I can describe.  It was very, very faint.

- These sounds seem to be coming from the belt drive box.

Edit:
The 'variator' seems to be the word of choice in this thread.  I find no reference of it in the manual I printed off.  Are there any threads/videos that detail how to maintain or replace a 'variator'?
« Last Edit: July 07, 2012, 03:12:49 AM by KTIzkhanilov »

Vivo

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Re: 2008 Agility 50 rattling at speed
« Reply #29 on: July 07, 2012, 03:17:21 AM »
mine makes a whistling noise when i accelerate, sounds like a turbo.  ffffffeeeeeEEEEEWWWWWWWW!!!!

no.. sounds like this..... 








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