OP
@mcruss avatar
UTC

Hooked
'20 GTS300 Touring, '10 GTS300 Super (sold)
Joined: UTC
Posts: 139
Location: Ruidoso Downs, New Mexico
 
Hooked
@mcruss avatar
'20 GTS300 Touring, '10 GTS300 Super (sold)
Joined: UTC
Posts: 139
Location: Ruidoso Downs, New Mexico
UTC quote
Well, this is not a new topic but nothing new on it since 2007 AND all the input was from higher mileage scoots. My 2020 GTS 300 HPE has just under 1800 miles and I should hope the problem is not rollers already.

Oh, the problem....harmonic vibration at 60 plus mph. Not horrible, just there. Checked air pressure, head bearings, etc. It is pretty subtle but I just started noticing it now.

Yes, I read all the suggestions, just thought there might be something new with the HPE since 2007.
@breaknwind avatar
UTC

Ossessionato
Red Devil SH150i (11,000)
Joined: UTC
Posts: 3305
Location: Orange Park Florida
 
Ossessionato
@breaknwind avatar
Red Devil SH150i (11,000)
Joined: UTC
Posts: 3305
Location: Orange Park Florida
UTC quote
Make sure any plastic parts have screws and are tight.
@motovista avatar
UTC

Veni, Vidi, Posti
GT 200
Joined: UTC
Posts: 9255
Location: Main Street, Watts
 
Veni, Vidi, Posti
@motovista avatar
GT 200
Joined: UTC
Posts: 9255
Location: Main Street, Watts
UTC quote
Check to make sure the belt isn't coming apart. That's about what it feels like. I have had a couple of belts separate over the years, and they felt pretty much like you are describing. This is when the top part separates from the bottom part. It still works, but there's a strange feeling, almost like a gyroscope.
OP
@mcruss avatar
UTC

Hooked
'20 GTS300 Touring, '10 GTS300 Super (sold)
Joined: UTC
Posts: 139
Location: Ruidoso Downs, New Mexico
 
Hooked
@mcruss avatar
'20 GTS300 Touring, '10 GTS300 Super (sold)
Joined: UTC
Posts: 139
Location: Ruidoso Downs, New Mexico
UTC quote
I would hope a belt would not come apart with 1800 miles but I suppose it could, especially since it sat for a couple years. Plastic seems OK and I think I would recognize a 'plastic buzz'. I've had those and they usually come on at various rpm's. This one starts to be noticeable at 60 mph and is there through 70 plus. I'm thinking something in the 'transmission' system, possibly belt. Will start there.
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