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1Back to top Go down    Stalling engine on Fri Mar 07, 2014 4:03 am

AL-58

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If I use the throttle gently and cut the throttle everything is OK.

If I sharply blip the throttle to 3000 or above or have to come to stop from higher revs like pulling up for traffic lights, the engine slows so much that it stalls.

Also when the revs are dropping down quickly through 2000-1500, the charge light comes on then off.

The bikes idle speed is good at 1000rpm, it just drops off so far when decelerating that it sometimes stalls.

Hopefully the stalling will be sorted once I get the injectors cleaned and synch the throttle bodies. I've never seen the charge light flash on like that before.

Any ideas?

Al


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'87 K100RS/HRD sidecar (1100 motor)sc25
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

2Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 4:35 am

charlie99

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bad earth ? wouldnt hurt to clean up a few things i guess


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

3Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 5:49 am

AL-58

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You're right, it wouldn't hurt and easy to do as well.

I have to run through the fuses and connections anyway. I discovered to day its has no fuel warning light as well as no working fuel guage(which I already knew). It had a 'cough' while accelerating from traffic lights this afternoon which I instantly recognized as fuel surge. No warning though could be a bit dicey, I haven't actually ran out of fuel for years.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)sc25
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

4Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 6:54 am

K75cster

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An occasional cough and a charge light that comes on, could mean ignition is cutting out momentarilly, any back fires? or coughs on bumps? such as might happen if the ignition switch lost contact or the kill switch or such, I mean it could be brushes in the Altinator or the starter perhaps, just thinking of contacts for batt and earth.


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Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

5Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 7:02 am

RicK G

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I would be looking for a momentary break in Ignition as that wall also make the alt light come on as well, you probably wouldn't get a cough or backfire as that type of fault would also cut the injectors as well so no fuel to explode.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

6Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 7:14 am

AL-58

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There is no cough or backfire at all, if I roll the throttle on it responds immediately.
The bike runs very nicely other than this glitch.

Time to go through connections and earths, have to start somewhere.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)sc25
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

7Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 9:12 am

RicK G

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A possibility is the TPS but I cant imagine how that would make the alternator light come on.
Are you using the L-Jetronic or the Motronic 2.1


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

8Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 6:23 pm

AL-58

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Its the 16v RS Rick, it would be Motronic.

On the sidecar I transplanted the wiring loom and Motronic along with the 1100 engine.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)sc25
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

9Back to top Go down    Re: Stalling engine on Fri Mar 07, 2014 8:16 pm

RicK G

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Being a Motronic it's unlikely to be the TPS.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

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