*clunk* sounds - 2012 Buddy 170i

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roblinx
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*clunk* sounds - 2012 Buddy 170i

Post by roblinx »

Hello all...

My Buddy 170 has ~6000 miles on it, and runs great in general. This year I've noticed a *clunk* noise coming from the motor. I haven't been able to reproduce it on demand, but it seems to happen under these (combined) conditions:

- decelerating (throttle off)
- usually starting around 10-15 mph down to near stopping
- need to have accelerated past about 30 mph
- engine needs to have been warmed up
- doesn't happen when stopped
- doesn't happen when accelerating

My guess (based on a rather limited knowledge of the specifics of the CVT) is that it's something to do with the transmission? Perhaps the rollers returning to idle position? If that's even a thing?

Thanks, Buddy buddies!

RL
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easy
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Post by easy »

That's the speed that the cvt release and you start coasting. I'd check my rollers and clean up the clutch.
what did you trade the day for?
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Tocsik
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Post by Tocsik »

You're in chi-town so I imagine you have a dealer/shop nearby? I would recommend taking advantage of your Warranty 1st. At 6K miles, you're probably due for rollers but if you are hearing a 'clunk', I wouldn't take any chances.
.::I know the voices in my head aren't real, but man do they come up with some great ideas::.
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jijifer
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Post by jijifer »

yeah if you haven't changed your rollers yet that clunk could be something now square that used to be round :)
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roblinx
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Post by roblinx »

The warranty just expired. :-)

Would roller replacement be something within reach of someone moderately handy but with no experience with scooter motors? I have changed my oil, but that's about it.
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Tocsik
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Post by Tocsik »

roblinx wrote:The warranty just expired. :-)

Would roller replacement be something within reach of someone moderately handy but with no experience with scooter motors? I have changed my oil, but that's about it.
It's actually pretty easy. You will need a strap wrench and metric sockets for taking things apart (preferably an impact driver) and torque wrench, strap wrench + blue LocTite for putting things back together.
A couple of guides here:
topic5411.html
topic5444.html

These are basically the same steps for breaking down the front half of the CVT for periodic cleaning.
.::I know the voices in my head aren't real, but man do they come up with some great ideas::.
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Throwback7R
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Post by Throwback7R »

Yea i would say CVT as well.. also check the clutch and belt to see if it is with in limits.
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