BMW K bikes (Bricks)

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1Back to top Go down   Heated Grip Mystery Empty Heated Grip Mystery Tue Dec 03, 2013 6:42 pm

klamityboy

klamityboy
Gold member
Gold member
I have retrofit factory heated grips on my K75RT-P. Last winter I noticed that the throttle side grip was not heating. I assumed that wear due to it be throttle side had damaged the grip. A couple of months ago I replaced, and upgraded, my alternator to a 50A version. Today was especially cold -8C with wind so I switched on the grips thinking that at least my clutch hand would be warm. Imagine my surprise when both hands were toasty.

My question is this. If my old alternator was putting out less volts than it was supposed to would that cause one grip (specifically the throttle one) to not heat up. I cannot read electrical schematics but the two on this link( https://www.k100-forum.com/t1137-need-confirmatino-of-wiring-for-heated-grips ) would seem to suggest that the grips are wired in parallel as opposed to wired in series. Am I correct? Would a new alternator would solve the problem? Or is there a faulty connection somewhere else that has "fixed" itself?

I await your cumulative knowledge.

Cheers


__________________________________________________
Klamityboy
1991 K75RT-P

Model Description: K 75RT
Market: Europe
Type: 0565
E-Code: K569
Engine: 3_ZYL - 0,70l (55kW)
Transmission: Manual
Body Color: Polizeiweiss
Production Date: 30.08.1990
    

2Back to top Go down   Heated Grip Mystery Empty Re: Heated Grip Mystery Tue Dec 03, 2013 7:46 pm

RicK G

RicK G
admin
admin
I cant see why a change in alternator would make it work, I would be looking for an intermittent open circuit in the right grip.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   Heated Grip Mystery Empty fyi Wed Dec 04, 2013 1:28 pm

colinijohnson

colinijohnson
Silver member
Silver member
Recently resolved problem with my throttle side HRG. Motoworks flogged me a used but working "boxer" grip, which was stripped and went into the existing grip. k100 versions were o/s,.... problem solved for £27


__________________________________________________
k100lt 1989 abs
    

4Back to top Go down   Heated Grip Mystery Empty Re: Heated Grip Mystery Wed Dec 04, 2013 1:34 pm

klamityboy

klamityboy
Gold member
Gold member
Thanks Rick. So far it is working. Have to take the tank off to replace the clutch switch so will check connections then,

Thanks colin. Will keep your economical fix in mind. Although postage from the UK might be an issue.


__________________________________________________
Klamityboy
1991 K75RT-P

Model Description: K 75RT
Market: Europe
Type: 0565
E-Code: K569
Engine: 3_ZYL - 0,70l (55kW)
Transmission: Manual
Body Color: Polizeiweiss
Production Date: 30.08.1990
    

5Back to top Go down   Heated Grip Mystery Empty re Wed Dec 04, 2013 2:06 pm

colinijohnson

colinijohnson
Silver member
Silver member
Just remembered...mine had dodgy connections - my mechanic had to solder the connections to the loom , and remove the connectors. I do wonder if that was the original fault??!


__________________________________________________
k100lt 1989 abs
    

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