Go Back   ChinaRiders Forums > Technical/Performance > Street
Register FAQ Community Calendar Today's Posts Search
Reply
 
Thread Tools Search this Thread Display Modes
Old 07-08-2019, 02:51 PM   #1
cam125   cam125 is offline
 
Join Date: Jul 2019
Posts: 2
Question Hellcat Crazy Vibrations

Hello all,
I recently bought a hellcat 125 and it has extreme vibrations in the front fairings and whole bike anywhere above 3k rpm that make it basically unridable. I have made sure all bolts are tight however it doesn’t change. I am going to order new engine mount bolts as others say, but could is this vibration what others experience before switching bolts?
Any help would be appreciated, thanks!


 
Reply With Quote
Old 07-08-2019, 05:46 PM   #2
RedCrowRides   RedCrowRides is offline
 
Join Date: Jun 2018
Location: Florida
Posts: 759
Are you getting the vibrations all the time whether stopped or moving ?
There is a little "buzzy" feeling vibration in most of these Chinabikes but nothing that should even approach making it an unridable condition. Did you buy it new or used ,it sounds like to me at least one of the engine mount bolts are broken, thats the only thing i am aware of that could account for that severe of vibration ,these engines do not have counterbalancers and thats what causes the "buzz" but should not be anything crazy . It's also possible the clutch basket nut has backed off and while the clutch may still work ,the basket is wobbling / off center as a result and the more you rev it the more pronounced that "sling" is going to be or get.


So, if it is vibrating that bad whether stopped or in motion double check both engine mount bolts and make sure one or both aint broke and then pull the clutch side cover and make sure the clutch basket nut is good and tight. If that does not resolve the issue I'm not sure what it could be maybe some others will chime in with some ideas,there are a few things it could be if it only did it when moving but need some input for that.
__________________
2001 Mustang GT
2004 Sportster
2018 VADER
2020 Orion RXB250L


 
Reply With Quote
Old 07-08-2019, 11:35 PM   #3
cam125   cam125 is offline
 
Join Date: Jul 2019
Posts: 2
Doh! Problem solved

I have no idea how I didnt realize and I feel slow LOL! But you are exactly right my engine mount rear bolt is broken in the middle. Thank you so much for your time


 
Reply With Quote
Old 07-11-2019, 02:39 AM   #4
scoot newb   scoot newb is offline
 
scoot newb's Avatar
 
Join Date: Sep 2018
Posts: 403
BFD8X120YLW - Flange Bolt 10.9 Yellow Zinc [4984]


BFD8X110YLW - Flange Bolt 10.9 Yellow Zinc [6032]

These are what I used. The longer one goes in the top.


 
Reply With Quote
Reply

Tags
125, china, hellcat, vibrations



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:52 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.