BMW K bikes (Bricks)

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1Back to top Go down    coil mounting rubbers on Sun Apr 22, 2018 11:47 am

gsxrjeff

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hi i have a short with my k100lt coils.
if i put the coil cover on and twist it clockwise about 10mm it shorts to the engine stopping the front coil and stalling!
have checked all wires and ht leads to no help.
the cover is now being used with only the 2 rear coil cap heads being used.
does anyone have the dimensions of the mounting bushes/rubbers/isolators so i can make some more at work without having to remove said items and measure them myself
many thx

    

2Back to top Go down    Re: coil mounting rubbers on Sun Apr 22, 2018 6:07 pm

charlie99

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the coil cover screws should only be 4 x 8mm or so
is there any sign that the screws you are using are too long ? if 15 mm or so long the spark may jump from the coil to the screw especially at the top where the insulation - potting compound is at the thinnest .

good luck


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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: coil mounting rubbers on Mon Apr 23, 2018 1:07 pm

gsxrjeff

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@charlie99 wrote:the coil cover screws should only be 4 x 8mm or so
is there any sign that the screws you are using are too long ? if 15 mm or so long the spark may jump from the coil to the screw especially at the top where the insulation - potting compound is at the thinnest .

good luck
its not shorting thru the cover screws its actually thru the mounting bolt of the front coil,which when you put the cover on and align the cover screws starts shorting!
pulling my hair out

    

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