Technical Discussion Topics related to Technical Issues

Help! Lurching and dying above 5K RPM

Old 05-24-2009, 03:18 PM
  #1  
Member
Squid
Thread Starter
 
DavidEW's Avatar
 
Join Date: May 2009
Location: LA
Posts: 35
DavidEW is on a distinguished road
Help! Lurching and dying above 5K RPM

Just replace my R/R and battery and installed an HID kit. Took it out for a ride and noticed around 4500-5K it started lurching and when I gassed it it would die. What could cause this? Bike was in great shape and running fine beforehand.
DavidEW is offline  
Old 05-24-2009, 03:22 PM
  #2  
Banned
MotoGP
 
8541Hawk's Avatar
 
Join Date: Aug 2007
Location: Lake View Terrace, CA
Posts: 5,942
8541Hawk will become famous soon enough
Did you take the tank off?
8541Hawk is offline  
Old 05-26-2009, 05:56 AM
  #3  
Senior Member
MotoGP
 
nath981's Avatar
 
Join Date: Aug 2006
Location: altoona, pa
Posts: 2,934
nath981 is on a distinguished road
I noticed that there is no mention of TPS adjustment in you signature/mod description. Mine's a 98 also and this made a huge difference when it started to act up spontaneously one day. They're typically out of adjustment.
nath981 is offline  
Old 05-26-2009, 08:34 AM
  #4  
I could ride in
SuperBike
 
LineArrayNut's Avatar
 
Join Date: Sep 2007
Location: Dayton, TN
Posts: 1,729
LineArrayNut is on a distinguished road
search term "PVLIR"

Originally Posted by DavidEW
Just replace my R/R and battery and installed an HID kit. Took it out for a ride and noticed around 4500-5K it started lurching and when I gassed it it would die. What could cause this? Bike was in great shape and running fine beforehand.

see if this has any bearing on your problem
LineArrayNut is offline  
Old 05-26-2009, 07:56 PM
  #5  
Member
Squid
Thread Starter
 
DavidEW's Avatar
 
Join Date: May 2009
Location: LA
Posts: 35
DavidEW is on a distinguished road
Found it. Cracked vacuum hose and carbs out of sync. But good to know about PVLIR.
DavidEW is offline  
Old 05-26-2009, 08:17 PM
  #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 DavidEW
Found it. Cracked vacuum hose and carbs out of sync. But good to know about PVLIR.
good you got things sorted out. what did you use to sync the carbs? I can understand the vacuum hose causing your condition, but not the carb sync. Next time you're under the tank, look at the TPS to see if it still has the original rivets, or if it been moved because if it hasn't, it could likely be out of spec as they usually are.
nath981 is offline  
Old 05-26-2009, 08:54 PM
  #7  
guru of things sparky
SuperSport
 
Circuit_Burner's Avatar
 
Join Date: Oct 2008
Location: Grand Prairie , Texas
Posts: 599
Circuit_Burner is on a distinguished road
If you dont have the proper guages, you can substitute with two small kittens.
Stuff them butt first into the venturis, and observe how deep their eyeballs recede when reving up motor.
Circuit_Burner is offline  
Old 05-27-2009, 04:06 AM
  #8  
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 Circuit_Burner
If you dont have the proper guages, you can substitute with two small kittens.
Stuff them butt first into the venturis, and observe how deep their eyeballs recede when reving up motor.
sounds like something they might do in texas, just for the fun of it.
nath981 is offline  
Old 05-27-2009, 11:27 AM
  #9  
Member
Squid
Thread Starter
 
DavidEW's Avatar
 
Join Date: May 2009
Location: LA
Posts: 35
DavidEW is on a distinguished road
Tried the kitten thing but it ended really badly.
When the bike cut off I was on my way to work and was literally passing by my honda dealer and was able to coast and push in and drop it off and go to work. They were the ones who found the leak and adjusted the carbs. They also managed to drop my bike and break the custom painted mirror. I love dealers.
DavidEW is offline  
Old 05-27-2009, 02:23 PM
  #10  
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 DavidEW
Tried the kitten thing but it ended really badly.
When the bike cut off I was on my way to work and was literally passing by my honda dealer and was able to coast and push in and drop it off and go to work. They were the ones who found the leak and adjusted the carbs. They also managed to drop my bike and break the custom painted mirror. I love dealers.
well then, that xplains the carb sync. sucks when you get one thing fixed and break another, huh? costly lesson.
nath981 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kennywiz
Technical Discussion
33
06-11-2012 05:58 AM
t-dogg
Technical Discussion
9
12-27-2011 04:33 PM
evines
Everything Else
4
09-21-2010 08:23 PM
pwshadow
General Discussion
45
07-25-2010 09:15 AM
joshuatest
General Discussion
2
10-27-2008 04:44 PM


Thread Tools
Search this Thread
Quick Reply: Help! Lurching and dying above 5K RPM



All times are GMT -7. The time now is 11:55 PM.