nklr vs my other bikes - second set of wheels

[Stephen Grisanti]

Okay, this thing takes about 20 minutes for the guage to hit the upper part of the dial, and that's enough time for me to ride to work or to ride home, so I'm commuting on it but not risking a longer ride. Interestingly, taking the freeway home gets it hotter. Higher speeds, I reckon. Going to work on surface streets (50 MPH max) it usually never exceeds halfway on the guage. Anyway, on Sunday I took the cooling system apart. Drained tank and radiator, removed all hoses and blew compressed air through everything trying to find/remove clogs. Reinstalled the thermostat that I removed last test session about a month ago. Refilled with 50/50 premix and it's still about the same; may run a little cooler going to work but still gets as hot coming home. Finished the test ride and tilted the bike to the ground on the left and then the right trying to work out the bubbles in the system, if any. Found nothing obvious. I guess the guage itself could be bad and the bike is not really overheating, but that seems unlikely. The guage is reading pretty consistently as to time vs. distance vs. ambient temp vs. rev range. If it does not get AS hot in 40F weather as in 70F but all other variables are consistent, I would not blame the guage. Thoughts? Thanks! Stephen __________________________________________________________________________________________ Check out the New Yahoo! Mail - Fire up a more powerful email and get things done faster. (http://advision.webevents.yahoo.com/mailbeta)

[Jeff Saline]

On Tue, 31 Oct 2006 13:56:08 -0800 (PST) Stephen Grisanti writes:

> Okay, this thing takes about 20 minutes for the gauge > to hit the upper part of the dial, and that's enough > time for me to ride to work or to ride home, so I'm > commuting on it but not risking a longer ride. > Interestingly, taking the freeway home gets it hotter.

SNIP

> Thoughts? > > Thanks! > > Stephen

<><><><><><><> <><><><><><><> Stephen, First thing that comes to mind hearing about what you've already done is maybe the impeller isn't securely attached to the shaft in the coolant pump. I think you could pull the coolant pump cover on the right side of the engine to check it out. Don't snap the threaded end off the shaft when you check it out. That would turn a fine day into a less than fine day. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT

[Stephen Grisanti]

Jeff, --- Jeff Saline wrote:

> On Tue, 31 Oct 2006 13:56:08 -0800 (PST) Stephen > Grisanti > writes: > > Okay, this thing takes about 20 minutes for the > gauge > > to hit the upper part of the dial, and that's > enough > > time for me to ride to work or to ride home, so > I'm > > commuting on it but not risking a longer ride. > > Interestingly, taking the freeway home gets it > hotter. > > SNIP > > > Thoughts? > > > > Thanks! > > > > Stephen > <><><><><><><> > <><><><><><><> > > Stephen, > > First thing that comes to mind hearing about what > you've already done is > maybe the impeller isn't securely attached to the > shaft in the coolant > pump. I think you could pull the coolant pump cover > on the right side of > the engine to check it out. Don't snap the threaded > end off the shaft > when you check it out. That would turn a fine day > into a less than fine > day. > > Best, > > Jeff Saline > ABC # 4412 South Dakota Airmarshal > Airheads Beemer Club www.airheads.org > The Beautiful Black Hills of South Dakota > 75 R90/6, 03 KLR650, 79 R100RT >

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[Stephen Grisanti]

Oops! Fatfingered the keyboard on that response. Jeff, Checking the impeller is the very first thing I did in my first troubleshooting session, as that had been recommended early on. It was snug on the shaft and did not appear to turn unless the shaft turns also, so I figured that was not the problem. Also cleaned out the oil screen during the same session. Thanks! Stephen --- Jeff Saline wrote:

> On Tue, 31 Oct 2006 13:56:08 -0800 (PST) Stephen > Grisanti > writes: > > Okay, this thing takes about 20 minutes for the > gauge > > to hit the upper part of the dial, and that's > enough > > time for me to ride to work or to ride home, so > I'm > > commuting on it but not risking a longer ride. > > Interestingly, taking the freeway home gets it > hotter. > > SNIP > > > Thoughts? > > > > Thanks! > > > > Stephen > <><><><><><><> > <><><><><><><> > > Stephen, > > First thing that comes to mind hearing about what > you've already done is > maybe the impeller isn't securely attached to the > shaft in the coolant > pump. I think you could pull the coolant pump cover > on the right side of > the engine to check it out. Don't snap the threaded > end off the shaft > when you check it out. That would turn a fine day > into a less than fine > day. > > Best, > > Jeff Saline > ABC # 4412 South Dakota Airmarshal > Airheads Beemer Club www.airheads.org > The Beautiful Black Hills of South Dakota > 75 R90/6, 03 KLR650, 79 R100RT >

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[Jeff Saline]

On Tue, 31 Oct 2006 14:53:11 -0800 (PST) Stephen Grisanti writes:

> Oops! Fatfingered the keyboard on that response. > > Jeff, > > Checking the impeller is the very first thing I did in > my first troubleshooting session, as that had been > recommended early on. It was snug on the shaft and > did not appear to turn unless the shaft turns also, so > I figured that was not the problem. > > Also cleaned out the oil screen during the same > session. Thanks! > > Stephen

<><><><><><> <><><><><><> Stephen, Since you've already checked the obvious stuff... maybe pull the temp sender in the head next to the sparkplug and make sure it's not covered in metal shavings or something similar. I suppose a guy could also pull the thermostat housing and stat and visually check in that area. If I recall correctly Jeff Layton had a similar issue with a bike last winter/spring. Maybe if he's monitoring the list he'll have some input. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT

[Don S]

Is the thermostat working properly? Have you tried to run it for a while with the radiator cap off. Sometimes if there is air in the system, running it with the cap off will help it escape. Good luck. Don Stephen Grisanti wrote: Oops! Fatfingered the keyboard on that response. Jeff, Checking the impeller is the very first thing I did in my first troubleshooting session, as that had been recommended early on. It was snug on the shaft and did not appear to turn unless the shaft turns also, so I figured that was not the problem. Also cleaned out the oil screen during the same session. Thanks! Stephen --- Jeff Saline wrote:

> On Tue, 31 Oct 2006 13:56:08 -0800 (PST) Stephen > Grisanti > writes: > > Okay, this thing takes about 20 minutes for the > gauge > > to hit the upper part of the dial, and that's > enough > > time for me to ride to work or to ride home, so > I'm > > commuting on it but not risking a longer ride. > > Interestingly, taking the freeway home gets it > hotter. > > SNIP > > > Thoughts? > > > > Thanks! > > > > Stephen > <><><><><><><> > <><><><><><><> > > Stephen, > > First thing that comes to mind hearing about what > you've already done is > maybe the impeller isn't securely attached to the > shaft in the coolant > pump. I think you could pull the coolant pump cover > on the right side of > the engine to check it out. Don't snap the threaded > end off the shaft > when you check it out. That would turn a fine day > into a less than fine > day. > > Best, > > Jeff Saline > ABC # 4412 South Dakota Airmarshal > Airheads Beemer Club www.airheads.org > The Beautiful Black Hills of South Dakota > 75 R90/6, 03 KLR650, 79 R100RT >

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[tjtacke]

Mine ran hot a lot......but that was in 100+ weather and in 50 degree weather. I drained the system and found the old coolent to be bad smelling and probably straight w/o water. I refilled with water and WaterWetter. TaDa.......not more over heating. --- In DSN_KLR650@yahoogroups.com, Stephen Grisanti wrote:

> > Okay, this thing takes about 20 minutes for the guage > to hit the upper part of the dial, and that's enough > time for me to ride to work or to ride home, so I'm > commuting on it but not risking a longer ride. > Interestingly, taking the freeway home gets it hotter. > Higher speeds, I reckon. Going to work on surface > streets (50 MPH max) it usually never exceeds halfway > on the guage. > > Anyway, on Sunday I took the cooling system apart. > Drained tank and radiator, removed all hoses and blew > compressed air through everything trying to > find/remove clogs. Reinstalled the thermostat that I > removed last test session about a month ago. Refilled > with 50/50 premix and it's still about the same; may > run a little cooler going to work but still gets as > hot coming home. Finished the test ride and tilted > the bike to the ground on the left and then the right > trying to work out the bubbles in the system, if any. > Found nothing obvious. > > I guess the guage itself could be bad and the bike is > not really overheating, but that seems unlikely. The > guage is reading pretty consistently as to time vs. > distance vs. ambient temp vs. rev range. If it does > not get AS hot in 40F weather as in 70F but all other > variables are consistent, I would not blame the guage. > Thoughts? > > Thanks! > > Stephen > > > >

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[Stephen Grisanti]

Ran it a while with the radiator cap off, and if air escaped it was not enough to make a difference in running temp, or to cause the coolant level to drop perceptibly. Will try again for a longer test period. Damn, this is maddening. The bike runs great, just not too long without overheating (or *appearing* to overheat). Stephen --- Don S wrote:

> Is the thermostat working properly? > > Have you tried to run it for a while with the > radiator cap off. Sometimes if there is air in the > system, running it with the cap off will help it > escape. > > Good luck. > > Don > > Stephen Grisanti wrote: > Oops! Fatfingered the keyboard on that > response. > > Jeff, > > Checking the impeller is the very first thing I did > in > my first troubleshooting session, as that had been > recommended early on. It was snug on the shaft and > did not appear to turn unless the shaft turns also, > so > I figured that was not the problem. > > Also cleaned out the oil screen during the same > session. Thanks! > > Stephen > > --- Jeff Saline wrote: > > > On Tue, 31 Oct 2006 13:56:08 -0800 (PST) Stephen > > Grisanti > > writes: > > > Okay, this thing takes about 20 minutes for the > > gauge > > > to hit the upper part of the dial, and that's > > enough > > > time for me to ride to work or to ride home, so > > I'm > > > commuting on it but not risking a longer ride. > > > Interestingly, taking the freeway home gets it > > hotter. > > > > SNIP > > > > > Thoughts? > > > > > > Thanks! > > > > > > Stephen > > <><><><><><><> > > <><><><><><><> > > > > Stephen, > > > > First thing that comes to mind hearing about what > > you've already done is > > maybe the impeller isn't securely attached to the > > shaft in the coolant > > pump. I think you could pull the coolant pump > cover > > on the right side of > > the engine to check it out. Don't snap the > threaded > > end off the shaft > > when you check it out. That would turn a fine day > > into a less than fine > > day. > > > > Best, > > > > Jeff Saline > > ABC # 4412 South Dakota Airmarshal > > Airheads Beemer Club www.airheads.org > > The Beautiful Black Hills of South Dakota > > 75 R90/6, 03 KLR650, 79 R100RT > > > >

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[Stephen Grisanti]

I'll try the temp sender next. I did not test the thermostat itself, but ran without it for more than a month and that made no difference. Stephen --- Jeff Saline wrote:

> On Tue, 31 Oct 2006 14:53:11 -0800 (PST) Stephen > Grisanti > writes: > > Oops! Fatfingered the keyboard on that response. > > > > Jeff, > > > > Checking the impeller is the very first thing I > did in > > my first troubleshooting session, as that had been > > recommended early on. It was snug on the shaft > and > > did not appear to turn unless the shaft turns > also, so > > I figured that was not the problem. > > > > Also cleaned out the oil screen during the same > > session. Thanks! > > > > Stephen > <><><><><><> > <><><><><><> > > Stephen, > > Since you've already checked the obvious stuff... > maybe pull the temp > sender in the head next to the sparkplug and make > sure it's not covered > in metal shavings or something similar. I suppose a > guy could also pull > the thermostat housing and stat and visually check > in that area. > > If I recall correctly Jeff Layton had a similar > issue with a bike last > winter/spring. Maybe if he's monitoring the list > he'll have some input. > > Best, > > Jeff Saline > ABC # 4412 South Dakota Airmarshal > Airheads Beemer Club www.airheads.org > The Beautiful Black Hills of South Dakota > 75 R90/6, 03 KLR650, 79 R100RT > > > Archive Quicksearch at: >

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[Jeff Layton]

Stephen: It sounds like you're going down the same path I did. I fought this for 6 months or so, and wound up only poorer & more frustrated. Here's what I suggest: 1) Follow every step in the manual, including boiling the temp sender & fan switch in water & seeing when they activate. 2) Check the temp gauge resistance readings - also per the manual. Note that I now have an out of spec temp gauge in my bike & it reads fine - this is a part the Kawasaki rep sent me from a bike that was running fine. 3) You checked all the obvious stuff - water pump impeller, flush & fill, radiator clogging, etc. I never found a "smoking gun" but ended up replacing every part in the system with parts from a known good bike & now I'm good - but I don't know why. Your choices are simple: -Fan Switch, Fan motor, Fan blade (air flow) -Water pump / impeller (water flow) -Temp Sender / Temp Gauge (indication) -Radiator (heat removal / water flow / air flow) I wish I could offer you more, but like I said - it was never fully diagnosed. I do have a new fan switch & temp sender I was getting ready to put on eBay though.... Please keep us posted how this progresses. Jeff Layton A15, Austin TX [Non-text portions of this message have been removed]