1984 klr 600

DSN_KLR650
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celestemilanofausto
Posts: 2
Joined: Wed Jan 04, 2006 11:14 am

fan switch/thermastat

Post by celestemilanofausto » Wed Jan 04, 2006 11:14 am

Simple question here. Been riding my A5 for 12 years with zero problems. Now fan is not working. I figure it is the fan switch. Is there also a traditional thermastat on the KLR, or does the switch serve as the thermastat? Just ordered the Clymer manual, but I figured I might get a quick answer here. Thanks in advance! Richard Hopkins In the Georgia mountains

Guy B. Young II
Posts: 401
Joined: Sun Jan 11, 2004 10:42 am

fan switch/thermastat

Post by Guy B. Young II » Wed Jan 04, 2006 11:38 am

Richard, The fan switch controls the fan. The 'real' thermostat is located on the RH side of the head, under the cover the hose connect to. You can easily test the switch/fan/relay/circuit but running a jumper for the switch lead terminal to ground. The ignition does not have to be on. When the lead is grounded, the fan should come on. Guy A16 Richmond, VA -----Original Message-----
>From: celestemilanofausto >Sent: Jan 4, 2006 12:13 PM >To: DSN_KLR650@yahoogroups.com >Subject: [DSN_KLR650] Fan switch/thermastat > >Simple question here. Been riding my A5 for 12 years with zero >problems. Now fan is not working. I figure it is the fan switch. Is >there also a traditional thermastat on the KLR, or does the switch >serve as the thermastat? Just ordered the Clymer manual, but I figured >I might get a quick answer here. > >Thanks in advance! > >Richard Hopkins >In the Georgia mountains > > > > > > > >Archive Quicksearch at: http://www.angelfire.com/ut/moab/klr650_data_search.html >List sponsored by Dual Sport News at: www.dualsportnews.com >List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html >Member Map at: http://www.frappr.com/dsnklr650 >Yahoo! Groups Links > > > > > >

sylvain gilbert
Posts: 58
Joined: Tue Jun 21, 2005 7:25 am

fan switch/thermastat

Post by sylvain gilbert » Wed Jan 04, 2006 12:06 pm

Also ensure to have a look at the fan circuit fuse located on the right side of the coolant tank. My fried A19 was overheating last summer in traffic during a 7000 Kms trip accross Eastern Canada and we finally found a small hair-line crack in the fuse. I was difficult to see but were able to confirm it with a small multy meter. Sylvain 76 XL100 A12 A14 00 DRZ400 00 Hayabusa 01 RC51 --- "Guy B. Young II" wrote:
> Richard, > > The fan switch controls the fan. The 'real' > thermostat is located on the RH side of the head, > under the cover the hose connect to. > > You can easily test the switch/fan/relay/circuit but > running a jumper for the switch lead terminal to > ground. The ignition does not have to be on. When > the lead is grounded, the fan should come on. > > Guy > A16 > Richmond, VA > > > > -----Original Message----- > >From: celestemilanofausto > >Sent: Jan 4, 2006 12:13 PM > >To: DSN_KLR650@yahoogroups.com > >Subject: [DSN_KLR650] Fan switch/thermastat > > > >Simple question here. Been riding my A5 for 12 > years with zero > >problems. Now fan is not working. I figure it is > the fan switch. Is > >there also a traditional thermastat on the KLR, or > does the switch > >serve as the thermastat? Just ordered the Clymer > manual, but I figured > >I might get a quick answer here. > > > >Thanks in advance! > > > >Richard Hopkins > >In the Georgia mountains > > > > > > > > > > > > > > > >Archive Quicksearch at: >
http://www.angelfire.com/ut/moab/klr650_data_search.html
> >List sponsored by Dual Sport News at: > www.dualsportnews.com > >List FAQ courtesy of Chris Krok at: > www.bigcee.com/klr650faq.html > >Member Map at: http://www.frappr.com/dsnklr650 > >Yahoo! Groups Links > > > > > > > > > > > > > > > > Archive Quicksearch at: >
http://www.angelfire.com/ut/moab/klr650_data_search.html
> List sponsored by Dual Sport News at: > www.dualsportnews.com > List FAQ courtesy of Chris Krok at: > www.bigcee.com/klr650faq.html > Member Map at: http://www.frappr.com/dsnklr650 > Yahoo! Groups Links > > > DSN_KLR650-unsubscribe@yahoogroups.com > > > > >
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Walter Mitty
Posts: 224
Joined: Sat Apr 02, 2005 4:59 am

fan switch/thermastat

Post by Walter Mitty » Wed Jan 04, 2006 12:24 pm

Could be a couple or three things causing your problem. The fan "switch" is located at the bottom of the radiator with a single wire running to it. Pull the wire off and touch it to a ground. If the fan works, the switch is probably bad. There is a fuse for the fan that is located on the vertical brace under the right shroud. If the fuse is good the likely suspect is the fan relay, a round thingy also located near the fan fuse. The side stand relay located under the cover near the battery on the left side of the bike is a clone. You can swap them to see it that will fix the problem. celestemilanofausto wrote: Simple question here. Been riding my A5 for 12 years with zero problems. Now fan is not working. I figure it is the fan switch. Is there also a traditional thermastat on the KLR, or does the switch serve as the thermastat? Just ordered the Clymer manual, but I figured I might get a quick answer here. Thanks in advance! Richard Hopkins In the Georgia mountains Archive Quicksearch at: http://www.angelfire.com/ut/moab/klr650_data_search.html List sponsored by Dual Sport News at: www.dualsportnews.com List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html Member Map at: http://www.frappr.com/dsnklr650 Yahoo! Groups Links --------------------------------- Yahoo! DSL Something to write home about. Just $16.99/mo. or less [Non-text portions of this message have been removed]

Jeff Saline
Posts: 2246
Joined: Fri Oct 10, 2003 6:02 pm

fan switch/thermastat

Post by Jeff Saline » Wed Jan 04, 2006 1:32 pm

Richard, Two sensors, a stat and a relay are involved in the cooling system operation. The stat is located on the right side of the engine, just behind the tank. It's at the head and has a hose running from the stat cover to the radiator. There is a sensor in the head, near the spark plug which measures temp and is indicated on the gauge in the instrument cluster. At the bottom of the radiator is another sensor which measures coolant temp in the radiator. When the radiator sensor gets hot enough the fan will turn on. A quick check of your fan operation is to remove the wire at the bottom of the radiator and ground it. I think the key must be in the on position for this to work. But I haven't done it recently and don't remember for sure. When you ground that wire the fan motor should start spinning. If it doesn't, make sure the wire can't get to ground. Then reach up to the fan and see if it spins. It should spin freely. If the fan doesn't spin you have a problem there. If the fan spins you may have a blown fuse. The stock location is on the right side of the bike tie wrapped to the tube which holds the coolant reservoir. It's behind the plastic shroud in front of the tank. If the fuse is blown replace it. If it's not then there's something else wrong and it may be hard to troubleshoot over the internet. But the Clymer's manual has a good wiring diagram and should make it fairly easy. 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 On Wed, 04 Jan 2006 17:13:29 -0000 "celestemilanofausto" writes:
> Simple question here. Been riding my A5 for 12 years with zero > problems. Now fan is not working. I figure it is the fan switch. Is > > there also a traditional thermastat on the KLR, or does the switch > serve as the thermastat? Just ordered the Clymer manual, but I > figured > I might get a quick answer here. > > Thanks in advance! > > Richard Hopkins > In the Georgia mountains > > > > > > > > Archive Quicksearch at: > http://www.angelfire.com/ut/moab/klr650_data_search.html > List sponsored by Dual Sport News at: www.dualsportnews.com > List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html > Member Map at: http://www.frappr.com/dsnklr650 > Yahoo! Groups Links > > > > > > > >

Jud Jones
Posts: 1251
Joined: Wed Mar 03, 2004 2:52 pm

1984 klr 600

Post by Jud Jones » Fri Jan 27, 2006 5:52 pm

--- In DSN_KLR650@yahoogroups.com, "Brian" wrote:
> > Hi, just joined this group as I am thinking about getting a KLR 650 > for a second bike. I am loking at either new or used. But I came > across an ad for a 84 klr 600 and thought I would ask everyone what > they though of the 600 as compared to the newer 650. Are they very > similar except for engine size. I have read as much as I could find > about the 650 but have really not seen or heard much about the 600 on > the internet. Any help is appreciated. Thanks, > Brian >
You won't read much about them because the 600s are pretty thin on the ground. A nice 600 can be a lot of fun, lighter than the 650 and revvier, lacking the big tank. The running gear has more in common with the KLR250. That means that a lot of the aftermarket stuff for the 650 will not apply to the 600. The 84 will not have an electric start, I believe. Still, could be fun if it is cheap enough.

celestemilanofausto
Posts: 2
Joined: Wed Jan 04, 2006 11:14 am

fan switch/thermastat

Post by celestemilanofausto » Fri Jan 27, 2006 6:51 pm

Ok. Here is my problem. Fan quit working, so I crossed everything out till I figured out the switch on radiator was bad. Changed it, and now the fan won't stop running! Any ideas? Never had this problem before. Richard Hopkins A5

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