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K100-forum.com » Technical, repair and troubleshooting » Electrical » 85 K100RS Fan

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1Back to top Go down   85 K100RS Fan Empty 85 K100RS Fan Sun Dec 12, 2021 12:12 pm

92KK 84WW Olaf

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Life time member
So, coming home yesterday....... red temp light on the dash....
Quick check on the fan manual switch reveals fan has chosen to die....
Ah sure in 2014 put one in th RT..... and put the old one in the shed, later did a fix.

Nice to have the spare but a pig to get at....still the RT had a bad fan for 12 months and just got one for a France trip.

So an April job.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

2Back to top Go down   85 K100RS Fan Empty Re: 85 K100RS Fan Sun Dec 12, 2021 8:34 pm

Dai

Dai
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92KK 84WW Olaf wrote: but a pig to get at
I was considering converting the RS to an LT, but working on the RT has made me reassess that idea a few times...


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

3Back to top Go down   85 K100RS Fan Empty Re: 85 K100RS Fan Mon Dec 13, 2021 11:05 pm

92KK 84WW Olaf

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Dai the plastics come off easily....lhs and rhs bottom panel/liner and boxes, and the radiator panel does it for access. 10 mins gets them off. RT is easier than RS.

But then gotta go at and drain coolant and get the rad off.....


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

4Back to top Go down   85 K100RS Fan Empty Re: 85 K100RS Fan Tue Dec 14, 2021 8:20 pm

Born Again Eccentric

Born Again Eccentric
Life time member
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92KK 84WW Olaf wrote:So, coming home yesterday....... red temp light on the dash....
Quick check on the fan manual switch reveals fan has chosen to die....
Ah sure in 2014 put one in th RT..... and put the old one in the shed, later did a fix.

Nice to have the spare but a pig to get at....still the RT had a bad fan for 12 months and just got one for a France trip.

So an April job.
Were you in heavy traffic? The fan seldom needs to run ever in these northern latitudes in winter…so unless this is a direct consequence of climate change, I would be suspicious that there was a loss of coolant from the radiator. Either way, its open bike surgery but not necessarily just the fan to blame


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85 K100RS Fan Uk-log10 85 K100RS Fan Sco-lo15
                              Paul  85 K100RS Fan 905546712

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 82,818 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (82,684 miles and counting....). Cat C Insurance write-off rebuild Feb 17
"Donor" K100LT 1990 (Red)  (VIN 0178091 Engine gone to Dai) - 6th & final owner (crash write-off now donor bike).   June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

5Back to top Go down   85 K100RS Fan Empty Re: 85 K100RS Fan Wed Dec 15, 2021 12:30 am

92KK 84WW Olaf

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Life time member
Life time member
A set route and the fans on the RT, RS and K1100 all come on at the same place. Definitely the fan, it croaks on the manual activation.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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