Idle Issue - Yamaha Rhino Forum - Rhino Forums.net
Carburetors, Tuning and Modifications For discussion of carburetors, tuning and all modifications

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 11-18-2019, 06:55 PM Thread Starter
Couch Potato
 
Join Date: May 2016
Posts: 7
Idle Issue

Have a problem with my 07 Rhino 450. Sometimes when I let off the accelerator to bring the engine to idle, the engine speed does not decrease enough to shift gears. The rpm stays a little too high like the throttle is sticking. I can rev the engine and let off the accelerator quickly, but it doesn't help. The only way I can get the engine slow enough to shift gears is to choke it just a little. Once the engine slows enough to shift gears and I let the choke off, the engine will idle at the proper speed. Any one have any ideas about what is going on?
jdforres is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 11-19-2019, 05:37 AM
Official Site Vendor
 
Hunterworks's Avatar
 
Join Date: Jan 2009
Posts: 3,460
Might be dirt in the vacuum slide in the carburetor
Hunterworks is offline  
post #3 of 7 (permalink) Old 11-19-2019, 04:43 PM Thread Starter
Couch Potato
 
Join Date: May 2016
Posts: 7
Thanks, will check out.
jdforres is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 11-19-2019, 09:59 PM
Veteran
 
Join Date: Dec 2012
Location: Nashville TN
Posts: 453
I don't think you have a vacuum slide in that carb but it has been a few years since I worked on my buddies. Sounds like a sticking throttle plate and or gunk in the bore to keep it from seating. That's assuming that you checked ALL linkages and cables (choke included) and they are allowing the plate to seat.

08 700 Black Armor SE, resi-shocks, 27" ITP Mudlite XTR, STI single Beadlock 14x7 wheels, JBS 734, Carillo crank & Rod, Viking Cam & inj,MSD, 4pt harn, Viper 4500 winch, Unleashed sheave, JBS 18 gr OD weights & purple spring(greased), Innovate AFR Gauge,Rigid Dually,2 batts with man switch, 6"chopped cage, Mishi rad
jimclemjr is offline  
post #5 of 7 (permalink) Old 11-20-2019, 05:11 AM
Official Site Vendor
 
Hunterworks's Avatar
 
Join Date: Jan 2009
Posts: 3,460
Quote:
Originally Posted by jimclemjr View Post
I don't think you have a vacuum slide in that carb but it has been a few years since I worked on my buddies. Sounds like a sticking throttle plate and or gunk in the bore to keep it from seating. That's assuming that you checked ALL linkages and cables (choke included) and they are allowing the plate to seat.
There is a vacuum slide
Hunterworks is offline  
post #6 of 7 (permalink) Old 11-20-2019, 09:48 AM
Veteran
 
Join Date: Dec 2012
Location: Nashville TN
Posts: 453
Thx HW, I sit corrected...I checked the manual..it is a Vacuum pot that controls the needle jet rod slide, sorry I was thinking of another kind of slide. A can of carb cleaner in the bowl, let it sit a few minutes and cycled thru the carb, should clean it out if jet or needle is gunked. I used to periodically run some carb cleaner in tank to keep the carbs clean.

08 700 Black Armor SE, resi-shocks, 27" ITP Mudlite XTR, STI single Beadlock 14x7 wheels, JBS 734, Carillo crank & Rod, Viking Cam & inj,MSD, 4pt harn, Viper 4500 winch, Unleashed sheave, JBS 18 gr OD weights & purple spring(greased), Innovate AFR Gauge,Rigid Dually,2 batts with man switch, 6"chopped cage, Mishi rad
jimclemjr is offline  
post #7 of 7 (permalink) Old 11-23-2019, 09:47 AM Thread Starter
Couch Potato
 
Join Date: May 2016
Posts: 7
Issue solved, maybe

I had some time yesterday to do some troubleshooting. I checked the accelerator and choke linkages and they seemed to be fine. I did find a vacuum leak at the carb intake. After repairing I drove it around for a while. It would come back to the proper idle speed every time. Time will tell. Thanks for all the responses.
jdforres is offline  
Reply

  Lower Navigation
Go Back   Yamaha Rhino Forum - Rhino Forums.net > Technical > Carburetors, Tuning and Modifications

Quick Reply
Message:
Options

Register Now



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

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

Password:


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

Email Address:
OR

Log-in










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



Posting Rules  
You may post new threads
You may 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