Technical Discussion Topics related to Technical Issues

Unusually High Idle RPM

Old 09-16-2010, 05:33 AM
  #1  
Member
Squid
Thread Starter
 
Join Date: May 2010
Posts: 68
amhsraptor is on a distinguished road
Unusually High Idle RPM

Last night I went for a ride and my bike started up fine and was running normal except I noticed the idle was around 1500-1600 RPMs. I believe that is the normal idle range but my bike was idling from 1000 to 1100 on Tuesday. I tried pulling the choke to see if it had gotten caught and it didn't do anything and I am not sure what it could be. Bare in mind I am not a carburetor guy so I am still learning, and when I did a search I didn't see that many relevant topics.

For a little background information, I was using my bike to commute about 50 miles, both ways, a day since August 16th until yesterday when my truck was fixed.

Thanks in advance,

-BA
amhsraptor is offline  
Old 09-16-2010, 05:56 AM
  #2  
Senior Member
MotoGP
 
nath981's Avatar
 
Join Date: Aug 2006
Location: altoona, pa
Posts: 2,934
nath981 is on a distinguished road
well reach under the tank from the right side and turn the plastic handled idle screw counterclockwise and get your idling back to 1000.
nath981 is offline  
Old 09-16-2010, 06:00 AM
  #3  
Out of my mind, back in 5
MotoGP
 
Tweety's Avatar
 
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
Tweety is on a distinguished road
Usually a high isle like that is the result of an airleak somewhere... Check all vacuum lines...
Tweety is offline  
Old 09-16-2010, 06:04 AM
  #4  
Member
Squid
Thread Starter
 
Join Date: May 2010
Posts: 68
amhsraptor is on a distinguished road
Will do, what normally causes the idle screw to move/an airleak to occur? I am just curious because the other day it was running just fine. Could my bike is jealous of my truck?
amhsraptor is offline  
Old 09-16-2010, 06:08 AM
  #5  
Out of my mind, back in 5
MotoGP
 
Tweety's Avatar
 
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
Tweety is on a distinguished road
Nothing causes the screw to spontaneously move... Airleaks are mostly caused by dried out old hoses...
Tweety is offline  
Old 09-16-2010, 06:09 AM
  #6  
Senior Member
MotoGP
 
nath981's Avatar
 
Join Date: Aug 2006
Location: altoona, pa
Posts: 2,934
nath981 is on a distinguished road
Originally Posted by amhsraptor View Post
Will do, what normally causes the idle screw to move/an airleak to occur? I am just curious because the other day it was running just fine. Could my bike is jealous of my truck?

i think you may have hit on something here.
nath981 is offline  
Old 09-16-2010, 07:55 PM
  #7  
Moderator
MotoGP
 
inderocker's Avatar
 
Join Date: May 2005
Posts: 2,708
inderocker is an unknown quantity at this point
Could also be sticky, kinked, or misadjusted throttle cables. be sure they have the proper slack when turning the bars lock to lock.
inderocker is offline  
Old 09-16-2010, 08:21 PM
  #8  
Banned
MotoGP
 
Join Date: Aug 2007
Location: Lake View Terrace, CA
Posts: 5,942
8541Hawk will become famous soon enough
As it just happened overnight I would also have to believe it was a hose that split and caused a vacuum leak.
8541Hawk is offline  
Old 09-16-2010, 08:24 PM
  #9  
Senior Member
MotoGP
 
Join Date: May 2008
Location: San Clemente, CA
Posts: 3,447
VTRsurfer is on a distinguished road
Or a carb fart blew it off.
VTRsurfer is offline  
Old 09-17-2010, 04:19 AM
  #10  
jet wrench
Back Marker
 
Join Date: Jun 2007
Location: cowtown, CA
Posts: 175
loserbaby is on a distinguished road
air leak, failed hose IS most likely.
loserbaby is offline  
Old 09-17-2010, 06:25 AM
  #11  
Senior Member
SuperBike
 
trinc's Avatar
 
Join Date: Feb 2007
Location: Portland, Oregon
Posts: 1,051
trinc is on a distinguished road
choke has no effect when pulled, i'd start by looking there.
maybe the tension adjustment... ?


tim
trinc is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
thedeatons
Technical Discussion
14
06-21-2015 09:11 PM
Ziander
Technical Discussion
14
04-30-2014 12:14 PM
meanhawk98
Technical Discussion
17
02-14-2012 08:08 PM
john
General Discussion
6
05-28-2010 12:48 PM
DaxMiddler
Technical Discussion
8
04-28-2006 03:22 AM


Thread Tools
Search this Thread
Quick Reply: Unusually High Idle RPM


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.