Technical Discussion Topics related to Technical Issues

oil pressure light

Old 10-25-2006, 07:53 AM
  #1  
Senior Member
Back Marker
Thread Starter
 
tommygdbr's Avatar
 
Join Date: Oct 2006
Location: Albuquerque , NM
Posts: 125
tommygdbr is on a distinguished road
oil pressure light

Hi guys-
I have a 98' SHawk and every once in a while (twice in last 300 miles) I will be riding around at speeds around 50 mph and the low oil pressure light will come on and kill the engine. It seems to happen when pulling the clutch in to downshift for a stop. If I re-engauge the clutch the engine kicks back up,the light goes off and she runs perfect again. The odd thing is that I had an 03' CBR600RR that did the same exact thing after about 14 months of ownership. On my RR It happend mostly when cold during the first minute or two of riding. Oil/filter has recently been changed and filled to correct level. I'm guessing it is the sensor or oil pump. Other than that bike runs fantastic. Any info on what this might be would be great. thx
tommygdbr is offline  
Old 10-25-2006, 08:38 AM
  #2  
Senior Member
SuperBike
 
RickB's Avatar
 
Join Date: Sep 2005
Location: Buffalo, NY
Posts: 1,572
RickB is on a distinguished road
low idle speed could cause a drop in pressure and kick the light on... does the idle seem to drop below spec when you pull in the clutch? I have seen some bikes and other vehicles drop below idle spec when you let off the throttle - usually it seemed due to idle mixture. My '92 Nighthawk 750 did this a few times when stopping for a traffic light.
RickB is offline  
Old 10-25-2006, 06:39 PM
  #3  
Senior Member
Back Marker
Thread Starter
 
tommygdbr's Avatar
 
Join Date: Oct 2006
Location: Albuquerque , NM
Posts: 125
tommygdbr is on a distinguished road
will check

I will check to see if it does drop below idle speed the next time it happens. I had not thought of that. I appreciate the help!
tommygdbr is offline  
Old 10-25-2006, 07:05 PM
  #4  
Senior Member
Back Marker
 
Join Date: Oct 2006
Location: WILLIAMS LAKE BC
Posts: 119
jamesvtr is on a distinguished road
when you pull the clutch in on this bike and coast on this bike i think it is over 25mph the bike turns off for some reason they all do this im not sure why. So i suggest not holding the clutchin so long when going that fast
jamesvtr is offline  
Old 10-25-2006, 07:05 PM
  #5  
Sprung
World Champion
 
Hawkrider's Avatar
 
Join Date: Dec 2004
Location: Fulton, MO
Posts: 105,285
Hawkrider will become famous soon enoughHawkrider will become famous soon enough
This is one of the "qualities" of the Superhawk. If you pull in the clutch at anything over about 30mph, the engine will want to die. It depends slightly on idle setting, but not much. Back when this was discovered in '98, I did a little experiment on a back road by coasting from different speeds. About 30 the idle would go down. Pulling the clutch in at 50 will kill it no matter what the idle speed was (up to 1500 rpm). I didn't see any point of raising idle above that since nobody would ride around like that. The cause has something to do with the ECU (black box) but nobody ever really complained about it to Honda, so they never fixed it. The true answer is just not to pull in the clutch and coast at speed. Downshift and use the engine braking. Wish I had a better answer for you, or rather a fix to the problem, since this is about as complete of an answer as you will get.
Hawkrider is offline  
Old 10-26-2006, 04:53 PM
  #6  
Senior Member
Back Marker
Thread Starter
 
tommygdbr's Avatar
 
Join Date: Oct 2006
Location: Albuquerque , NM
Posts: 125
tommygdbr is on a distinguished road
thx

Thanks a bunch, guys. It helps knowing that it is a "quality" of the bike. I was worried about going on a long trip and having an issue, but not now. thx!
tommygdbr is offline  
Old 05-10-2007, 09:39 AM
  #7  
Member
Squid
 
Pookbe's Avatar
 
Join Date: Mar 2007
Location: CALGARY, CANADA
Posts: 40
Pookbe is on a distinguished road
Question

I'm bringin this one up again because my light is on. I took my '01 to the local shop and got them to change my chain and sprokets. When I went to pick it up the light was on and it would not turn off. I checked the level and it's ok. What do you guys think, a sensor? Has anyone ever had this kind of problem before??
Pookbe is offline  
Old 05-10-2007, 10:04 AM
  #8  
Senior Member
MotoGP
 
lazn's Avatar
 
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
lazn is on a distinguished road
I have never had this happen on my 2000 SH, I have pulled the clutch in at 75 and at 25 and every speed in between and she idled just fine. Everything stock, and idle is at IIRC ~700rpm
lazn is offline  
Old 05-10-2007, 10:12 AM
  #9  
Member
Squid
 
Pookbe's Avatar
 
Join Date: Mar 2007
Location: CALGARY, CANADA
Posts: 40
Pookbe is on a distinguished road
Originally Posted by lazn View Post
I have never had this happen on my 2000 SH, I have pulled the clutch in at 75 and at 25 and every speed in between and she idled just fine. Everything stock, and idle is at IIRC ~700rpm
The light is on when I start it and when I turn it off. It doesn't change when I let the clutch in and let it out. Also it seems to be running fine. It never died on me when I drove it home, but I am too afraid of the consequences if I drive it with the light on.
Pookbe is offline  
Old 05-10-2007, 12:23 PM
  #10  
Senior Member
MotoGP
 
lazn's Avatar
 
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
lazn is on a distinguished road
Is the light on while the engine is actually running? Or does it come on after the engine dies? If the 2nd, don't worry about it. That light will be on any time the engine is not running. If the engine is actually running and the light is on, that is a problem.
lazn is offline  
Old 05-10-2007, 12:29 PM
  #11  
Member
Squid
 
Pookbe's Avatar
 
Join Date: Mar 2007
Location: CALGARY, CANADA
Posts: 40
Pookbe is on a distinguished road
Originally Posted by lazn View Post
Is the light on while the engine is actually running? Or does it come on after the engine dies? If the 2nd, don't worry about it. That light will be on any time the engine is not running. If the engine is actually running and the light is on, that is a problem.
Yes, when I start it up and let it idle it's on. The bike doesn't run rough or dies, chokes, nothing. It seems to run fine, so I am thinking maybe it's just the sensor.
Pookbe is offline  
Old 05-10-2007, 12:30 PM
  #12  
Sprung
World Champion
 
Hawkrider's Avatar
 
Join Date: Dec 2004
Location: Fulton, MO
Posts: 105,285
Hawkrider will become famous soon enoughHawkrider will become famous soon enough
Check your oil sensor connections. The oil sensor is on the left side, just under the stator cover. Has a little rubber cover over it. If you disconnect the wire there should be NO continuity between it and ground. If there is continuity then you have a shorted wire somewhere. If everything checks out there then you need to check your oil pressure with a guage. Spec is 85psi. If pressure is good then you need to replace the sensor.
Hawkrider is offline  
Old 05-10-2007, 12:33 PM
  #13  
Member
Squid
 
Pookbe's Avatar
 
Join Date: Mar 2007
Location: CALGARY, CANADA
Posts: 40
Pookbe is on a distinguished road
Originally Posted by Hawkrider View Post
Check your oil sensor connections. The oil sensor is on the left side, just under the stator cover. Has a little rubber cover over it. If you disconnect the wire there should be NO continuity between it and ground. If there is continuity then you have a shorted wire somewhere. If everything checks out there then you need to check your oil pressure with a guage. Spec is 85psi. If pressure is good then you need to replace the sensor.
Thanks, I'll give it a try.
Pookbe is offline  
Old 05-10-2007, 04:47 PM
  #14  
Senior Member
Superstock
 
wyldryce's Avatar
 
Join Date: Apr 2007
Posts: 293
wyldryce is on a distinguished road
Hmmm...I would suspect that there is a wire running to a pressure sender for that light somewhere that has either become pinched, damaged or disconnected/grounded. I don't know where it might be on the superhawk, as I just recently got mine, and my service manual is at home.
-R

{Edit} looks like I let my response sit on my desktop for too long... hahaha
wyldryce is offline  
Old 05-11-2007, 12:56 AM
  #15  
Sprung
World Champion
 
Hawkrider's Avatar
 
Join Date: Dec 2004
Location: Fulton, MO
Posts: 105,285
Hawkrider will become famous soon enoughHawkrider will become famous soon enough
It's a blue and red wire that goes directly to the gauge cluster.
Hawkrider is offline  
Old 05-11-2007, 10:41 AM
  #16  
Member
Squid
 
Pookbe's Avatar
 
Join Date: Mar 2007
Location: CALGARY, CANADA
Posts: 40
Pookbe is on a distinguished road
Angry

Thanks to everyone who helped. The problem was when the dealer changed my chain and sprockets they caught the pressure wire under the front cover and it grounded on the cover. I got it fixed, now to see if the dealer wants my business or what.
BLACKFOOT MOTOSPORTS!!!!
Pookbe is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tinyhuge
Technical Discussion
8
09-04-2011 09:44 AM
smokinjoe73
Knowledge Base
5
11-09-2010 09:39 AM
twistidd
Technical Discussion
2
05-30-2007 10:29 PM
RymerC
Technical Discussion
6
06-22-2006 12:41 AM


Thread Tools
Search this Thread
Quick Reply: oil pressure light


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.

All times are GMT -7. The time now is 03:03 PM.


© 2019 MH Sub I, LLC dba Internet Brands