Bike is kicking & bucking past 40mph - KawiForums - Kawasaki Motorcycle Forums
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 07-08-2019, 07:48 AM Thread Starter
Jr. Member
Join Date: Jul 2019
Location: Michigan
Posts: 2
Bike is kicking & bucking past 40mph

So my 99 zx9r has what I would describe as bucking & kicking effect when I go past 40mph. The bike runs fine on idle & when I take off from 0 & accelerate through the gears its not that noticeable. However when I slow down to cruising speed it starts bucking lightly or kinda feels like someone is holding it back. I took it to a shop described my problem & they said the carb probably needed to be rebuilt. But when I picked it up they said it didnt need a rebuild all they did was put it in a sonic cleaner & sync'd it. But when I drove it nothing change & I didnt take it back because I wasnt about to spend more $$ on it when they couldnt fix the problem in the first place. I've looked on here & found a thread of someone having a similar problem & it was suggested that the ram air might not be connected right. So I checked mine & everything looked fine. Ive also replaced air & fuel filter, & spark plugs

"Boy, that escalated quickly."
Goodxx is offline  
Sponsored Links
post #2 of 2 (permalink) Old 07-08-2019, 10:05 AM
Jr. Member
Join Date: Sep 2018
Posts: 56
Sounds like a kink in the chain to me, put it on a the stand and rotate the rear wheel while looking at the chain. During the rotation see if the chain goes tight, if so that your issue.
Kevinl7778 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the KawiForums - Kawasaki Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome