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Mechanical / Help This area to for help in the areas of, engine, carbs, transmission, suspension, mounting etc
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12-03-2012, 05:04 AM
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#1
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Need Help with bike overheating ASAP
Hey guys I need your help I’m stuck at work with a broke bike. First off I have a 1999 R1, the bike has been running fine until last night. It was about 45 degrees and on my way home (75mph) I can see the temp gauge jumping from 168 to 200 back to 180 then spiking to 230, the temp light came on once, I can hear the fan working so I know it’s not the fan. the temp stayed at 199 the entire way home (10 miles). This morning I checked the coolant bottle and it was to the full line so I rode the bike to work. When I got off the exit I saw the temp gauge and it was 189 when I pulled into work it was 235 and the light was back on the fan was running. So I parked it and took a closer look the radiator cap was not hot, the hoses were hot and I saw a drop of coolant coming from the left upper hose, it was tight. So anyone can help!!!! I sure appreciate it.
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-03-2012, 05:19 AM
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#2
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Bourbon is my blood
Join Date: Apr 2011
Bikes: 2002 R1, 1980 FLH Harley, 1993 Suzuki Rmx 250, 1979 CB900f(modified), 1980 Kawasaki KX125
Location: Victoria, Australia
Posts: 3,447
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Has the coolant level dropped at all in the radiator?
If the level has dropped a bit, an air pocket can form and the temp sender could be getting a false reading.
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12-03-2012, 05:46 AM
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#3
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Quote:
Originally Posted by T.C.
Has the coolant level dropped at all in the radiator?
If the level has dropped a bit, an air pocket can form and the temp sender could be getting a false reading.
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No the level still good.
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-03-2012, 05:57 AM
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#4
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Bourbon is my blood
Join Date: Apr 2011
Bikes: 2002 R1, 1980 FLH Harley, 1993 Suzuki Rmx 250, 1979 CB900f(modified), 1980 Kawasaki KX125
Location: Victoria, Australia
Posts: 3,447
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Sounds like you may have a blockage in the radiator.
Hopefully someone else will chime in with some ideas for you.
Sorry I couldn't help any more than that. Good luck. 
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12-03-2012, 06:13 AM
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#5
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Thank you i really appreciate it!!!!
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-03-2012, 06:49 AM
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#6
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Someone told me it might be the thermostat?
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-03-2012, 07:13 AM
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#7
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Friggin Old Guy On An R1
Join Date: Oct 2010
Bikes: 04 R1
Location: South Carolina
Posts: 505
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Quote:
Originally Posted by Medevack1
Hey guys I need your help I’m stuck at work with a broke bike. First off I have a 1999 R1, the bike has been running fine until last night. It was about 45 degrees and on my way home (75mph) I can see the temp gauge jumping from 168 to 200 back to 180 then spiking to 230, the temp light came on once, I can hear the fan working so I know it’s not the fan. the temp stayed at 199 the entire way home (10 miles). This morning I checked the coolant bottle and it was to the full line so I rode the bike to work. When I got off the exit I saw the temp gauge and it was 189 when I pulled into work it was 235 and the light was back on the fan was running. So I parked it and took a closer look the radiator cap was not hot, the hoses were hot and I saw a drop of coolant coming from the left upper hose, it was tight. So anyone can help!!!! I sure appreciate it.
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I can't think of any mechanical condition/reason that would cause sparatic temp swings as you describe. I tend to believe that it is an electrical issue with either the temp sending unit or wiring associated with
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12-03-2012, 07:54 AM
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#8
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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what about the drop of coolant that was coming out of the upper hose would that be because of pressure overheating?
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
Last edited by Medevack1; 12-03-2012 at 08:27 AM.
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12-03-2012, 08:38 AM
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#9
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R1 Forum Star
Join Date: Feb 2011
Bikes: 2010 R1, 2009 Roadstar Silverado, 2008 R6 (Sold)
Location: Indianapolis, IN
Posts: 11,292
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Quote:
Originally Posted by Medevack1
No the level still good.
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did you check the level in the radiator or in the reservoir??
__________________
Hey Greenstreak, it's z064life lazy ass
Quote:
Originally Posted by Gearheaded
When did I ever say I wasn't gay?
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Quote:
Originally Posted by MelvinAkshay
PJ, so you lied to me.  lol it doesn't look that big  |
Phantom Squadron XO - http://www.r1-forum.com/forums/forumdisplay.php?f=50
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12-03-2012, 08:55 AM
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#10
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My R1 eats me.
Join Date: Oct 2012
Bikes: 07 R1, 12 yz450f
Location: colorado
Posts: 4
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you need a thermostat
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12-03-2012, 11:59 AM
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#11
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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ok can i run it w/o a thermostat for now?
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-03-2012, 05:10 PM
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#12
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Ok On my way home the temp stayed at 199, once i got home and took the plastic off, i inspect the bike and found a split on the upper radiator hose. Time to replace the thermostat, hose, and do a complete flush!!!!!
Sent from my iPhone using Motorcycle.com Free App
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-04-2012, 05:46 AM
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#13
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Does anyone have the OEM part # for the 1999 R1 thermostat?
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-04-2012, 06:30 AM
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#15
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Quote:
Originally Posted by FOGOAR1
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Awesome thank you im saving that link im my favs.
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-04-2012, 07:04 AM
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#16
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Never forget!!!
Join Date: Aug 2012
Bikes: '06 R1 50th anniversary & 99 YZF R1
Location: North Carolina
Posts: 668
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Hey thank you for the info, i found a thermostat at a local Parts store 7.99 instead of the stealership 40.00
http://shop.advanceautoparts.com/web...%2C#fragment-1
__________________
"The Lord knows the way I take, and when He has tested me, I shall come forth as gold" JOB 23:10
"Nightstalkers for life" Never Leave a Soldier Behind
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12-05-2012, 08:16 PM
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#17
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Is there anybody out there?
Join Date: May 2003
Bikes: 99 R1
Location: Boise, ID
Posts: 2,691
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While you're messing with your cooling system, it might be a good idea to replace your thermo switch with one manufactured by Wells. Part number SW518 available at Autozone. Will switch the fan on at about 180 degrees instead of 220. Installed one on mine a few years ago and it works great!
Mark
99 R1
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